CN109498502B

CN109498502B - Hair cream for protecting hair color and relieving itching as well as preparation method and application thereof

Info

Publication number: CN109498502B
Application number: CN201811437080.1A
Authority: CN
Inventors: 周建华; 王海韵; 李欣谕
Original assignee: Shandong Normal University
Current assignee: Fuxi Pharmaceutical Shanghai Co ltd
Priority date: 2018-11-28
Filing date: 2018-11-28
Publication date: 2021-08-17
Anticipated expiration: 2038-11-28
Also published as: CN109498502A

Abstract

The invention provides a hair color-protecting itching-relieving hair cream as well as a preparation method and application thereof, belonging to the technical field of cosmetics. The health-care food is prepared from the following raw materials in parts by weight: 400 parts of Poncirus trifoliata leach liquor, 158 parts of bletilla striata gum, 35-45 parts of Poncirus trifoliata xanthone extract, 35-45 parts of pepper seed kernel extract, 26-31 parts of pepper seed protein peptide solution, 10-16 parts of shea butter, 2-4 parts of pepper seed coat melanin, and 0.6-1.0 part of vitamin C and/or vitamin E in total. The hair color-protecting itching-relieving hair cream prepared by the invention is all natural plant components, and has mild product performance and safe use. The test proves that the hair conditioner has no any adverse stimulation to the hair and scalp skin, is particularly suitable for people who have dyed hair, has the effects of protecting color, fixing color, relieving itching, preventing sunburn and the like, has multiple effects of moistening and moisturizing the hair, repairing damaged hair and the like, and has good practical application value.

Description

Hair cream for protecting hair color and relieving itching as well as preparation method and application thereof

Technical Field

The invention belongs to the technical field of cosmetics, and particularly relates to a hair color-protecting and itching-relieving hair cream which is researched and developed aiming at the problems that the hair color after hair dyeing is easy to decompose and fade and the scalp is easy to itch, and a preparation method and application thereof.

Background

The information in this background section is only for enhancement of understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art.

The hair can not only protect the scalp, but also protect the whole head. Sebum secreted by the scalp enables the surface of the hair to have a layer of grease film, and the oil of the normal scalp exceeds that of the skin of other parts; the oil prevents the loss of moisture from the hair while maintaining the luster of the hair. People can dye hair in daily life for different reasons, and after the hair is bleached, dyed or permed, normal sebum secretion of scalp can be influenced for various reasons, scalp is easy to itch, and hair grease film can be damaged to a certain extent. If the oil content of the oil-and-fat film is reduced more than that of normal hair, the hair becomes dull, loses moisture, and is liable to become brittle and broken. In addition, the chemical reaction in the hair dyeing process can also change the surface and internal structure of the hair, so that the hair small skin of the hair is tilted, the phenomenon of detackification exists, the surface of the hair becomes rough, light scattering is caused, and the hair loses luster; the loss of protein and the reduction of crystallinity of the hair lead to the reduction of water retention capacity, the reduction of tensile strength, the reduction of elasticity and toughness and other physical property changes; damaged hair loses the protective structure of the outer layer, and hollowing occurs inside, making it difficult to effectively retain pigments in the hair. Especially, if the hair after dyeing is irradiated by ultraviolet rays for a long time, the hair after dyeing is not only more fragile, but also is not beneficial to maintaining hair color. Research shows that UVB damages the hair most seriously, under the irradiation of UVB, disulfide bonds in hair fibers are broken, cystine is oxidized into cysteic acid, the phenomenon of breaking the disulfide bonds can generate great influence on the mechanical properties of the hair, the tension strength of the hair is reduced, the hair is in a porous state, and pigments are easy to lose.

The hair cream is a living article necessary for many people, is an emulsified product of an oil-water system, has the characteristics of stable cream, proper consistency, white color and lasting fragrance, has the functions of enabling the oily component to give gloss and moisture to the hair and also has the effects of softening the hair and preventing breakage due to the moisture and has good hair care and hair style fixing functions because the hair cream contains both the oil component and the water component.

At present, hair cream in the market mostly takes oil and wax and the like as main raw materials, such as white oil, white vaseline, paraffin, essence, preservative, di-tert-butyl-p-cresol antioxidant and the like. The fat is relatively close to the fat of the human body and can be fully absorbed by the human body, but the animal fat is easy to rancidity to influence the quality of the product, and the mineral oil is not absorbed by the human body; paraffin is an effective component extracted from petroleum, the chemical synthetic grease basically takes petroleum as a raw material, has poor air permeability and certain toxicity, and the ditert-butyl-p-cresol is a low-toxicity chemical substance, easily causes sensitivity to the head and seriously causes skin inflammatory reaction. At present, only sun-screening hair cream or color-protecting hair cream is available in domestic markets, the hair cream product has a single effect, can meet the requirements of damage repair and color protection of hair after hair dyeing, and few hair cream products with multiple effects of color protection, color fixation, itching relieving, sun screening and the like are available. Therefore, there is a need to develop a new hair cream product for protecting hair color and relieving itching.

Disclosure of Invention

Aiming at the problems in the prior art, the inventor provides the hair color-protecting and itching-relieving hair cream through long-term technical and practical exploration. The hair color-protecting itching-relieving hair cream prepared by the invention is all natural plant components, and has mild product performance and safe use. The test proves that the hair-care liquid has no any adverse stimulation to the hair and scalp skin, is particularly suitable for people after hair dyeing, has multiple effects of color protection, color fixation, itching relief, sun protection and the like, can make the hair flexible and glossy, and has good practical application value.

The invention aims to provide a hair cream for protecting hair color and relieving itching.

The invention also aims to provide a preparation method of the hair cream for protecting hair color and relieving itching.

The invention also aims to provide the application of the hair cream for protecting the color and relieving the itching of the hair.

In order to achieve the purpose, the invention relates to the following technical scheme:

the invention provides a hair color-protecting and itching-relieving hair cream, which is prepared from the following raw materials in parts by weight: 400 parts of Poncirus trifoliata leach liquor, 158 parts of bletilla striata gum, 35-45 parts of Poncirus trifoliata xanthone extract, 35-45 parts of pepper seed kernel extract, 26-31 parts of pepper seed protein peptide solution, 10-16 parts of shea butter, 2-4 parts of pepper seed coat melanin, and 0.6-1.0 part of vitamin C and/or vitamin E in total;

wherein the mass ratio of the vitamin C to the vitamin E is 5: 8.

the hair color-protecting and itching-relieving hair cream has the effects of color protection, color fixation, itching relieving and sun protection, and can moisten and moisturize hair and repair damaged hair, because:

(1) the pepper seed melanin extracted from the pepper seed coat has strong oxidation resistance, and can play the main roles of sun protection and auxiliary hair dyeing; the pepper seed kernel extracting solution contains a large amount of alpha-linolenic acid and other nutrient substances and has the function of nourishing hair; the pepper seed protein peptide solution has the functions of sterilization and the like;

(2) the Poncirus trifoliata flower is rich in total flavonoids, has strong antioxidation, has the effects of bacteriostasis, itching relieving and the like, and can play a role of a natural preservative;

(3) the Shea butter contains abundant non-saponified components, wherein the non-saponified components can resist ultraviolet rays and promote the synthesis of collagen;

(4) the bletilla striata gum has color fixing effect and nourishing effect;

(5) the vitamin E can effectively prevent the prickly ash seed oil from being oxidized and improve the oxidation resistance efficiency of the prickly ash seed oil; vitamin C has antioxidant effect, can protect unsaturated fatty acid in natural oil, enhance density of hair cuticle cells, and relieve hair dryness.

The preparation method of the Poncirus trifoliata leach liquor comprises the following steps:

adding water into Poncirus trifoliata pollen powder, extracting with hot water, filtering, collecting supernatant, and concentrating to obtain light yellow Poncirus trifoliata flower extract;

wherein the mass ratio of the poplar and Chinese wolfberry powder to water is 1: 140 to 160 (preferably 1: 150);

the leaching conditions are specifically as follows: heating to 80 ℃, and leaching for 20-40 min (preferably 30 min);

further, the leaching liquor is centrifuged for 20min at the rotating speed of 8000r/min, the supernatant is taken, and the supernatant is concentrated to 1/3-1/5 (preferably 1/4) of the original volume, so that the light yellow Populus trifoliata leaching liquor is obtained.

The preparation method of the citric xanthone extracting solution comprises the following steps:

mixing Poncirus trifoliata flower powder with ethanol solution, ultrasonic extracting, centrifuging to obtain supernatant, and evaporating to remove ethanol to obtain brown Poncirus trifoliata flower flavone extract;

wherein the mass concentration of the ethanol solution is 80%;

the feed-liquid ratio of the poplar flower powder to the ethanol solution is 1g: 25-35 mL (1 g: 30 mL);

the ultrasonic extraction conditions are as follows: ultrasonic extracting at 250W and 60 ℃ for 20-40 min (preferably 30 min);

the specific centrifugation conditions are as follows: centrifuging at 10000r/min for 10 min.

The preparation method of the pepper seed coat melanin comprises the following steps:

s1, taking black pepper seed shells, removing oil, drying and crushing to obtain brown pepper seed shell powder;

s2, placing the brown pepper seed shell powder prepared in the step S1 in alkali liquor for treatment, adjusting the pH value of the solution to be acidic, and performing acid precipitation treatment to obtain dark brown amorphous powder, namely a crude product of the pepper seed melanin;

s3, removing residual protein of the crude product of the prickly ash seed melanin in the step S2 by using alkaline protease, and performing acid precipitation treatment to obtain the prickly ash seed coat melanin.

Wherein the content of the first and second substances,

the specific method of the step S1 is as follows: extracting with absolute ethyl alcohol to remove oil, drying and finely crushing the shells, and sieving with a 180-200-mesh sieve to obtain brown pepper seed shell powder;

further, the proportion of the shell of the black pepper seed to the absolute ethyl alcohol is 1g:5mL, leaching for 1h at 80 ℃;

the specific method in step S2 is as follows: placing pepper seed shell powder into NaOH solution for treatment, adjusting the pH value to 2-3 (preferably pH value is 2.5), and performing acid precipitation treatment to obtain dark brown amorphous powder, namely a crude product of pepper seed melanin;

further, the concentration of the NaOH solution is 1.20moL/L, and the ratio of the pepper seed shell powder to the NaOH solution is 1g:24.6mL, preferably at a temperature of 70 ℃ for 2 h;

the specific method of the step S3 is as follows: preparing a crude product of the pepper seed melanin into a solution, and preparing alkaline protease (enzyme activity is 10000U/g) into an enzyme solution with the concentration of 10 g/L; mixing the crude pepper seed melanin solution with an alkaline protease solution, and performing enzymolysis deproteinization, wherein the enzyme dosage is 6% of the volume of the crude pepper seed melanin solution, the action conditions are that the temperature is 50 ℃, the pH value is 9, and the enzymolysis time is 0.5-2 h (preferably 1 h); and (3) adjusting the pH value to 2-3 (preferably 2.5) and performing acid precipitation to obtain black pepper seed coat melanin.

The preparation method of the pepper seed kernel extracting solution comprises the following steps: pulverizing white semen Zanthoxyli, extracting with anhydrous ethanol at constant temperature, and separating to obtain deoiled white semen Zanthoxyli and extractive solution; distilling the leaching liquor to remove ethanol to obtain light yellow semen Zanthoxyli kernel extractive solution.

Wherein the leaching at constant temperature is carried out for 1-3 h (preferably 2h) at 80 ℃;

the feed liquid proportion of the white pepper seed kernels to the absolute ethyl alcohol is 1g: 10 mL.

The preparation method of the pepper seed protein peptide solution comprises the following steps: firstly, preparing white pepper seed protein from deoiled white pepper seed kernels by an alkali-soluble acid precipitation method; and then mixing the pepper seed protein with deionized water, preheating, adjusting the pH of the mixed solution to 2-3 (preferably pH 2.5) after reaching a preset temperature, adding pepsin to extract pepper seed protein peptides, performing enzyme deactivation treatment after extraction is finished, finally performing centrifugation, and adjusting the pH of a supernatant to be alkaline to obtain a transparent viscous pepper seed protein peptide solution.

Further, the substrate concentration of the pepper seed protein in water is 4.9%; the predetermined temperature is 32 ℃; the mass ratio of the pepsin (specific activity of 1: 3000-1: 3500) to the pepper seed protein solution is 0.9: 100, the extraction time is 2-4 h (preferably 3 h);

the enzyme deactivation treatment refers to heat preservation in a constant-temperature water bath at 90 ℃ for 15min, and cooling to room temperature.

The specific centrifugation conditions are as follows: centrifuging at 8000r/min for 10 min.

The preparation method of the bletilla striata gum comprises the following steps:

soaking rhizoma bletilla powder in water at high temperature, filtering, and concentrating the filtrate to obtain light yellow gel-like rhizoma bletilla gum.

Wherein the mass ratio of the bletilla striata powder to the water is 1: 15-20 (preferably 1: 17); the high-temperature soaking treatment conditions are as follows: soaking for 1-2h at 90-95 ℃.

And concentrating the filtrate to 1/3-1/5 (preferably 1/4) of the volume of the original filtrate.

Further, the hair color-protecting and itching-relieving hair cream is prepared from the following raw materials in parts by weight: 370 parts of Chinese wolfberry flower extract, 155 parts of bletilla striata gum, 40 parts of Chinese wolfberry flower flavone extract, 40 parts of Chinese prickly ash seed kernel extract, 28.5 parts of Chinese prickly ash seed protein peptide solution, 13 parts of shea butter, 3 parts of Chinese prickly ash seed coat melanin and 0.8 part of vitamin C and/or vitamin E in total.

Wherein the mass ratio of the vitamin C to the vitamin E is 5: 8.

in a second aspect of the present invention, there is provided a method for preparing the above hair cream for protecting color and relieving itching, the method comprising:

s1, adding the seed coat melanin of the pepper seeds into the protein peptide solution of the pepper seeds and the myricetin extracting solution, and stirring uniformly to obtain a mixed solution A;

s2, mixing Shea butter and semen Zanthoxyli extract, and stirring; adding Poncirus trifoliata leach liquor and bletilla hyacinthina gum, stirring, heating to 75-85 deg.C (preferably 80 deg.C), and collecting mixed solution B;

s3, under the ultraviolet irradiation condition, adding the B into the A while stirring, stirring uniformly, and cooling to room temperature; adding VC and/or VE mixed fine powder, stirring well, adjusting pH to weak acidity (preferably pH 6.5), and stirring the mixture by magnetic force/shaking for 30min to obtain light brown hair color-protecting and itching-relieving hair cream.

In a third aspect of the invention, the application of the hair color-protecting and itching-relieving hair cream in color protection, color fixation, itching relieving, sun protection, nourishing and hair restoration is provided.

When in use, the plastic container is opened, the hair is poured into the hand for two times, and then the hair is lightly grabbed to ensure that the hair color-protecting itching-relieving hair cream covers the hair on the surface and inside, so that the product permeates into the scalp to ensure the hair cream to be uniformly distributed. For hair exposed to intense sunlight for extended periods of time, it is recommended to use it every two to three hours. The effect is better if a simple massage treatment is performed when the hair cream is used.

The product is different from the common hair cream, and is not recommended to be used after shampooing or when the hair is not dried; if the hair cream is stained on clothes carelessly, the clothes can be washed in a conventional clothes washing mode.

The invention has the beneficial technical effects that:

(1) ultraviolet irradiation can cause oxidation of amino acids such as cystine, methionine, tryptophan, tyrosine, histidine, etc. and oxidation of carbon between polypeptide chains, so that hair is yellow, and the amino acids are degraded to generate free radicals, so that the hair is more easily faded. The pricklyash seed coat contains rich natural pigment, can assist in dyeing hair, and both the citric xanthone extract and the pricklyash seed contain strong antioxidant active substances, can be used as a natural sunscreen agent, can reduce the damage of ultraviolet irradiation to hair and prevent the further damage of damaged hair, and can play a role in delaying the fading of hair caused by oxidation; the vitamin C and the vitamin E can remove free radicals so as to weaken the influence of illumination on natural pigments and play a role in protecting the colors of the natural pigments; the Shea butter contains abundant non-saponified components, and is easy to be absorbed by human body, wherein the non-saponified components can resist ultraviolet rays and promote the synthesis of collagen; the pH value of the product is controlled to be about 6.5, the property of the main component antibacterial peptide of the pepper seed proteolysis can be well maintained, the pH value of the product is weak and acidic, the cuticular layer of the hair is closed when the hair meets weak acid, the hair has good texture and luster, and the hair dyeing effect is easy to achieve.

(2) The folk Poncirus trifoliata flower is commonly used for treating symptoms such as acute enteritis, bacillary dysentery, skin pruritus, urticaria and the like by using a decoction of the Poncirus trifoliata flower; zanthoxylum bungeanum is also commonly used for treating psoriasis. Bletilla striata gum is often used for dyeing hair and fixing color in folk plant hair dyeing. The antibacterial substances in the formula are natural components, for example, the pepper seed antibacterial peptide has an inhibiting effect on escherichia coli, salmonella, bacillus subtilis and staphylococcus aureus; the total flavone extract of the Populus trifoliata flower and the Populus trifoliata flower extract are matched for use, so that the functions of bacteriostasis, itching relieving and antioxidation can be better exerted, the Populus trifoliata flower can be used as a natural preservative, and meanwhile, the Populus trifoliata flower also contains nutrient substances such as protein, various amino acids and the like, so that the nutrition requirement can be effectively supplemented, and scalp skin and hair can be better moistened; shea butter has good deep moistening effect on hair.

(3) The bletilla striata gum has the effects of treating and preventing chilblain and chapping of skin, promoting blood circulation, improving skin nutrition and the like, and has obvious effects when being used for scalp care, hair care and the like; the melanin of the seed coat of the prickly ash seed is a water-insoluble substance, the bletilla gum is a natural hydrophilic polymer, and the bletilla gum can effectively emulsify the shea butter and the seed kernel extract of the prickly ash seed, so that the prickly ash seed extract is endowed with good apparent thickness and heavy feeling.

(5) At present, the utilization of poplar is mostly concentrated on the wood part, the utilization of the Populus trifoliata flower is very little, and the Populus trifoliata flower as a natural, cheap and abundant Chinese herbal medicine is not fully utilized; the pepper is usually used as a seasoning by adopting the shell thereof, and the pepper seeds are always abandoned as waste, so that the product realizes the reasonable utilization of the poplar flower and the pepper seeds.

In conclusion, the formula of the invention is an all-natural component, has no any adverse stimulation to hair and scalp skin, plays a role in relieving itching, does not cause the scalp skin to generate dependency, is mainly used for hair which is easy to itch and can be or is exposed to the sun for a long time after being dyed, can play the effects of color protection, color fixation, itching relieving and sun protection, and can make the hair flexible and glossy.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

As described above, the hair cream products in the market have a single effect, and can meet the requirements of damage repair and color protection of hair after hair dyeing, and few hair cream products with multiple effects of color protection, color fixation, itching relieving, sun protection and the like are available.

In view of the above, in an exemplary embodiment of the present invention, a hair color-protecting and itching-relieving hair cream is provided, which is prepared from the following raw materials in parts by weight: 400 parts of Poncirus trifoliata leach liquor, 158 parts of bletilla striata gum, 35-45 parts of Poncirus trifoliata xanthone extract, 35-45 parts of pepper seed kernel extract, 26-31 parts of pepper seed protein peptide solution, 10-16 parts of shea butter, 2-4 parts of pepper seed coat melanin, and 0.6-1.0 part of vitamin C and/or vitamin E in total;

wherein the mass ratio of the vitamin C to the vitamin E is 5: 8.

the hair cream for protecting color and relieving itching of the hair disclosed by the invention has the following specific effects of raw materials:

(1) pricklyash seed

The prickly ash seed is rich in nutrient components, is rich in vegetable oil and various essential amino acids, is a complete protein resource, and has important physiological functions of bacteriostasis, antioxidation, disinsection, detoxification, itching relief and the like. The melanin in the pepper seeds is a natural pigment with higher antioxidant activity, and researches show that when the mass concentration is 1.0mg/mL, the total reducing power and the total antioxidant capacity of the melanin of the pepper seeds have the light absorption values of 0.782 (+ -0.065) and 0.18 (+ -0.003) respectively, and the lipid peroxidation inhibition rate reaches 65.68% (+ -1.13%), and is close to Vc; when the mass concentration is respectively 0.66mg/mL and 0.76mg/mL, the clearance rate of the pepper seed melanin to DPPH & OH & gt reaches 50%, but the indexes are allLower than VC; the clearance rate of the pepper seed melanin to O-2 & lt 65.43 percent when the mass concentration is 0.1mg/mL, which is far higher than VC. Researches find that the melanin of the pepper seed coat is oxidized along with the prolonging of the illumination time, but the color change of the melanin is not obvious; the prickly ash seed kernel extracting solution mainly contains prickly ash seed kernel oil, wherein the four components of palmitoleic acid, oleic acid, linoleic acid and alpha-linolenic acid account for more than 95 percent, the component alpha-linolenic acid is a precursor substance for synthesizing eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), and an linoleic acid system has certain oxidation resistance. The extract of the pepper seed kernel has better total reducing power, and researches show that IC of DPPH and ABTS free radical clearance rate₅₀Respectively 0.066mg/mL and 0.43mg/mL, and has antibacterial effects on Escherichia coli, Staphylococcus aureus and Bacillus subtilis; the pepper seed protein peptide solution has an inhibiting effect on escherichia coli, salmonella, bacillus subtilis and staphylococcus aureus, and researches show that the bacteriostatic activity of the antibacterial peptide is enhanced along with the increase of the concentration.

(2) Poplar Chinese wolfberry flower

Poncirus trifoliata is dry male inflorescence of Populus plants in Salicaceae. The content of various nutrient substances in the Populus trifoliata flowers is rich and comprehensive, and the amino acid content is measured to be rich and comprehensive through research, and 21 free amino acids except glutamine exist; the Populus trifoliata flower contains abundant total flavone, including pinocembrin, chrysin, pinolone, etc., has antibacterial, antiinflammatory, and antiviral effects, and can treat O₂-·，·OH，H₂O₂DPPH has strong cleaning effect and strong antioxidation; the Populus trifoliata flower has extremely high carbohydrate content, contains rich plant polysaccharide, and has multiple physiological activities of resisting oxidation, eliminating in-vivo free radicals, improving immunity of organisms and the like.

(3) Bletilla striata gum

The bletilla striata powder prepared by drying tuber of natural plant bletilla striata is directly decocted to obtain bletilla striata gum, which has special viscosity characteristic and small irritation to skin, has the functions of healing sore, detumescence and anti-inflammation, promoting granulation, astringing, protecting skin, delaying skin aging and the like, and has obvious curative effects of promoting blood circulation, improving skin nutrition condition and the like. The plant hair dye is often used for dyeing and fixing hair in a folk plant hair dye formula.

(4) Shea butter

Is oil extracted from Butyrospermum parkii, namely shea butter, can promote the regeneration of epidermal cells and endow skin with the nutrition function. The shea butter is close to each index of sebum secretion oil of human body, and is easy to be absorbed by human body. Researches find that the shea butter has strong transdermal permeation promoting effect, can further recover and maintain the natural elasticity of skin, has the effects of promoting cell regeneration and repairing skin water film, and also has the anti-inflammatory effect. Shea butter has slight UV-blocking effect, and is a mild natural plant sunscreen agent.

(5) Vitamin C is a water-soluble strong antioxidant, and can protect other antioxidants, such as vitamin E and unsaturated fatty acid, and prevent free radicals from damaging human body.

(6) The vitamin E is a natural phenol antioxidant, and researches show that the small amount of vitamin E added into the pricklyash peel seed oil can effectively prevent the pricklyash peel seed oil from being oxidized and improve the antioxidant efficiency of the pricklyash peel seed oil.

In another embodiment of the present invention, the preparation method of the Populus trifoliata leach liquor comprises:

in another embodiment of the present invention, the leaching liquor is centrifuged at 8000r/min for 20min, the supernatant is collected and concentrated to 1/3-1/5 (preferably 1/4) of the original volume, and a pale yellow Populus trifoliata leaching liquor is obtained.

In another embodiment of the present invention, the preparation method of the citric xanthone extract comprises:

wherein the mass concentration of the ethanol solution is 80%;

the feed-liquid ratio of the poplar flower powder to the ethanol solution is 1g: 25-35 mL (preferably 1g: 30 mL);

In another embodiment of the present invention, the method for preparing Populus trifoliata pollen comprises: cleaning and drying the Poncirus trifoliata, crushing and sieving with a 40-mesh sieve to obtain Poncirus trifoliata flower powder.

In another embodiment of the present invention, the method for preparing the zanthoxylum bungeanum seed coat melanin comprises:

In another embodiment of the present invention, the step S1 is specifically performed by: extracting with absolute ethyl alcohol to remove oil, drying and finely crushing the shells, and sieving with a 180-200-mesh sieve to obtain brown pepper seed shell powder;

in another embodiment of the invention, the ratio of the shell of black pepper seed to absolute ethyl alcohol is 1g:5mL, leaching for 1h at 80 ℃;

in another embodiment of the invention, the concentration of the NaOH solution is 1.20moL/L, and the ratio of the pepper seed shell powder to the NaOH solution is 1g:24.6mL, preferably at a temperature of 70 ℃ for 2 h;

In another embodiment of the present invention, the method for preparing the extract solution of pricklyash seed kernel comprises: pulverizing white semen Zanthoxyli, extracting with anhydrous ethanol at constant temperature, and separating to obtain deoiled white semen Zanthoxyli and extractive solution; distilling the leaching liquor to remove ethanol to obtain light yellow semen Zanthoxyli kernel extractive solution.

In another embodiment of the present invention, the method for preparing the pepper seed protein peptide solution comprises: firstly, preparing white pepper seed protein from deoiled white pepper seed kernels by an alkali-soluble acid precipitation method; and then mixing the pepper seed protein with deionized water, preheating, adjusting the pH of the mixed solution to 2-3 (preferably pH 2.5) after reaching a preset temperature, adding pepsin to extract pepper seed protein peptides, performing enzyme deactivation treatment after extraction is finished, finally performing centrifugation, and adjusting the pH of a supernatant to be alkaline to obtain a transparent viscous pepper seed protein peptide solution.

In yet another embodiment of the present invention, the substrate concentration of said prickly ash seed protein in water is 4.9%; the predetermined temperature is 32 ℃; the mass ratio of the pepsin (specific activity of 1: 3000-1: 3500) to the pepper seed protein solution is 0.9: 100, the extraction time is 2-4 h (preferably 3 h);

In another embodiment of the present invention, the preparation method of bletilla striata gum comprises:

In another embodiment of the invention, the hair color-protecting and itching-relieving hair cream is prepared from the following raw materials in parts by weight: 370 parts of Chinese wolfberry flower extract, 155 parts of bletilla striata gum, 40 parts of Chinese wolfberry flower flavone extract, 40 parts of Chinese prickly ash seed kernel extract, 28.5 parts of Chinese prickly ash seed protein peptide solution, 13 parts of shea butter, 3 parts of Chinese prickly ash seed coat melanin and 0.8 part of vitamin C and/or vitamin E in total.

Wherein the mass ratio of the vitamin C to the vitamin E is 5: 8.

in another embodiment of the present invention, there is provided a method for preparing the above hair cream for protecting color and relieving itching, the method comprising:

s2, mixing Shea butter and semen Zanthoxyli extract, and stirring; adding Poncirus trifoliata leach liquor and bletilla hyacinthina gum, stirring, and heating to 80 deg.C to obtain mixed solution B;

s3, under the ultraviolet irradiation condition, adding the B into the A while stirring, stirring uniformly, and cooling to room temperature; adding VC and/or VE mixed fine powder, stirring, adjusting pH to 6.0-6.5, and stirring the mixture by magnetic force/shaking for 30min to obtain light brown hair color protecting and itching relieving cream.

In another embodiment of the present invention, the preparation method further comprises S4 and filling, specifically: pressing 9g of the hair color-protecting and itching-relieving hair cream obtained in the step S3 into a separate plastic container under the condition of ultraviolet irradiation, and sealing.

In another embodiment of the present invention, the hair color-protecting and itching-relieving cream is provided for use in color protection, color fixation, itching relieving, sun protection, nourishing and hair restoration.

The invention is further illustrated by the following examples, which are not to be construed as limiting the invention thereto. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. The test methods in the following examples, which are not specified under specific conditions, are generally carried out under conventional conditions.

Example 1

A hair cream for protecting hair color and relieving itching is prepared by:

(1) preparing hair cream for protecting hair color and relieving itching;

(2) pressing 9g of hair color protecting and itching relieving cream into a separate plastic container under ultraviolet irradiation, and sealing.

The hair color-protecting itching-relieving hair cream is prepared from the following raw materials in parts by weight: 370 parts of Chinese wolfberry flower extract, 155 parts of bletilla striata gum, 40 parts of Chinese wolfberry flower flavone extract, 40 parts of Chinese prickly ash seed kernel extract, 28.5 parts of Chinese prickly ash seed protein peptide solution, 13 parts of shea butter, 3 parts of Chinese prickly ash seed coat melanin, and 0.8 part of vitamin C and vitamin E in total.

The mass ratio of the vitamin C to the vitamin E is 5: 8.

the preparation method of each raw material comprises the following steps:

(1) extraction of effective components of Poncirus trifoliata

Cleaning and drying the Poncirus trifoliata, crushing and sieving with a 40-mesh sieve to obtain Poncirus trifoliata flower powder.

Preparation of Poncirus trifoliata flower flavone extract

Mixing Poncirus trifoliata flower powder with 80% ethanol solution (the ratio of Poncirus trifoliata flower powder to 80% ethanol solution is 1g: 30mL), and ultrasonic extracting at 60 deg.C under 250W for 30 min; centrifuging the obtained mixed solution at 10000r/min for 10min, collecting supernatant, and removing ethanol in the supernatant with a rotary evaporator to obtain brown Populus trifoliata flower flavone extract.

② preparation of Poncirus trifoliata leach liquor

Adding 150 times deionized water into Poncirus trifoliata pollen powder, mixing, heating to 80 deg.C, leaching for 30min, centrifuging the leaching solution at 8000r/min for 20min, collecting supernatant, and concentrating the supernatant to 1/4 times of the original volume to obtain light yellow Poncirus trifoliata flower leaching solution.

(2) Extraction of effective component from prickly ash seed

Firstly, separating white pepper seed kernels and black pepper seed shells from pepper seeds.

Chinese prickly ash seed coat melanin

Preparing the seed coat melanin of prickly ash seeds: extracting black pepper seed shells with absolute ethyl alcohol to remove oil (the material liquid ratio of the black pepper seed shells to the absolute ethyl alcohol is 1g:5mL, extracting at 80 ℃ for 1h), drying the shells, finely crushing, and sieving with a 200-mesh sieve to obtain brown pepper seed shell powder;

putting pepper seed shell powder into a NaOH solution with the concentration of 1.20moL/L, wherein the material-liquid ratio of the pepper seed shell powder to the NaOH solution is as follows: 24.6mL of the extract, extracting at 70 ℃ for 2 hours, adjusting the pH value to 2.5, and performing acid precipitation to obtain dark brown amorphous powder, namely a crude product of the pepper seed melanin;

removing residual protein in the crude product by an alkaline protease enzymolysis method. Preparing a crude product of the pepper seed melanin into a solution with the concentration of 1mg/mL, and preparing alkaline protease (the enzyme activity is 10000U/g) into an enzyme solution with the concentration of 10 g/L; mixing the crude product solution of the prickly ash seed melanin with alkaline protease liquid to carry out deproteinization by an enzymolysis method, wherein the enzyme addition amount is 6% of the volume of the crude product solution of the prickly ash seed melanin, the action condition is that the temperature is 50 ℃, the pH value is 9, and the enzymolysis time is 1 h; adjusting pH to 2.5, and performing acid precipitation to obtain black semen Zanthoxyli seed coat melanin.

② pricklyash seed extract

Coarsely crushing white pricklyash seed kernels, extracting with absolute ethyl alcohol at 80 ℃ for 2h (the ratio of the white pricklyash seed kernels to the absolute ethyl alcohol is 1g: 10mL), and separating to obtain deoiled white pricklyash seed kernels and an extract; distilling the leaching solution to remove ethanol to obtain light yellow semen Zanthoxyli extract.

③ pricklyash seed protein peptide solution

Firstly, preparing white pepper seed protein from deoiled white pepper seed kernels by an alkali-soluble acid precipitation method; then mixing the pepper seed protein with deionized water (the substrate concentration of the pepper seed protein in the deionized water is 4.9%), preheating, adjusting the pH of the mixed solution to 2.5 after the preset temperature is reached to 32 ℃, adding pepsin (the specific activity is 1: 3500), wherein the mass ratio of the pepsin to the pepper seed protein solution is 0.9: 100, extracting the pepper seed protein peptide for 3 hours; heating for inactivating enzyme, centrifuging at 8000r/min for 10min, collecting supernatant, and adjusting pH to slightly alkaline to obtain transparent viscous semen Zanthoxyli protein peptide solution.

(3) Preparation of bletilla striata gum: adding 17 times deionized water by mass into rhizoma bletilla powder, soaking at 95 deg.C for 2 hr, filtering, and concentrating the filtrate to 1/4 times of the original volume to obtain light yellow gelatinous bletilla gum.

The preparation method of the hair cream for protecting hair color and relieving itching comprises the following steps:

s3, under the ultraviolet irradiation condition, adding the B into the A while stirring, stirring uniformly, and cooling to room temperature; adding mixed fine powder of VC and VE, stirring well, adjusting pH to 6.5, and stirring the mixture by magnetic force/shaking for 30min to obtain light brown hair color-protecting and itching-relieving hair cream.

Example 2

A hair cream for protecting hair color and relieving itching is prepared by:

(1) preparing hair cream for protecting hair color and relieving itching;

The hair color-protecting itching-relieving hair cream is prepared from the following raw materials in parts by weight: 400 parts of Chinese wolfberry flower extract, 158 parts of bletilla striata gum, 45 parts of Chinese wolfberry flower flavone extract, 45 parts of pepper seed kernel extract, 31 parts of pepper seed protein peptide solution, 16 parts of shea butter, 4 parts of pepper seed coat melanin, and 1 part of vitamin C and vitamin E in total.

The mass ratio of the vitamin C to the vitamin E is 5: 8.

the preparation method of each raw material comprises the following steps:

(1) extraction of effective components of Poncirus trifoliata

Preparation of Poncirus trifoliata flower flavone extract

② preparation of Poncirus trifoliata leach liquor

(2) Extraction of effective component from prickly ash seed

Chinese prickly ash seed coat melanin

putting pepper seed shell powder into a NaOH solution with the concentration of 1.20moL/L, wherein the material-liquid ratio of the pepper seed shell powder to the NaOH solution is as follows: 24.6mL of the crude product of the pricklyash seed melanin, extracting for 2 hours at the temperature of 70 ℃, adjusting the pH value to 2, and performing acid precipitation to obtain dark brown amorphous powder, namely the crude product of the pricklyash seed melanin;

removing residual protein in the crude product by an alkaline protease enzymolysis method. Preparing the crude product of the pricklyash seed melanin into a solution with the concentration of 1mg/mL, and preparing alkaline protease (10000U/g) into an enzyme solution with the concentration of 10 g/L; mixing the crude product solution of the prickly ash seed melanin with alkaline protease liquid to carry out deproteinization by an enzymolysis method, wherein the enzyme addition amount is 6% of the volume of the crude product solution of the prickly ash seed melanin, the action condition is that the temperature is 50 ℃, the pH value is 9, and the enzymolysis time is 1 h; adjusting pH to 2, and performing acid precipitation to obtain black melanin of pricklyash seed coat.

② pricklyash seed extract

③ pricklyash seed protein peptide solution

Firstly, preparing white pepper seed protein from deoiled white pepper seed kernels by an alkali-soluble acid precipitation method; then mixing the pepper seed protein with deionized water (the substrate concentration of the pepper seed protein in the deionized water is 4.9%), preheating, adjusting the pH of the mixed solution to 2 after the preset temperature is reached to 32 ℃, adding pepsin (the specific activity is 1: 3500), wherein the mass ratio of the pepsin to the pepper seed protein solution is 0.9: 100, extracting the pepper seed protein peptide for 2 hours; heating for inactivating enzyme, centrifuging at 8000r/min for 10min, collecting supernatant, and adjusting pH to slightly alkaline to obtain transparent viscous semen Zanthoxyli protein peptide solution.

s3, mixing Shea butter and semen Zanthoxyli extract, and stirring; adding Poncirus trifoliata leach liquor and bletilla hyacinthina gum, stirring, and heating to 80 deg.C to obtain mixed solution B;

Example 3

A hair cream for protecting hair color and relieving itching is prepared by:

(1) preparing sun-screening hair care cream;

The hair color-protecting itching-relieving hair cream is prepared from the following raw materials in parts by weight: 340 parts of Chinese wolfberry flower extract, 152 parts of bletilla striata gum, 35 parts of pepper seed kernel extract, 35 parts of Chinese wolfberry flavone extract, 26 parts of pepper seed protein peptide solution, 10 parts of shea butter, 2 parts of pepper seed coat melanin, and 0.6 part of vitamin C and vitamin E in total.

The mass ratio of the vitamin C to the vitamin E is 5: 8.

the preparation method of each raw material comprises the following steps:

(1) extraction of effective components of Poncirus trifoliata

Preparation of Poncirus trifoliata flower flavone extract

② preparation of Poncirus trifoliata leach liquor

(2) Extraction of effective component from prickly ash seed

Chinese prickly ash seed coat melanin

putting pepper seed shell powder into a NaOH solution with the concentration of 1.20moL/L, wherein the material-liquid ratio of the pepper seed shell powder to the NaOH solution is as follows: 24.6mL of the crude product of the pricklyash seed melanin, extracting for 2 hours at the temperature of 70 ℃, adjusting the pH value to 3, and performing acid precipitation to obtain dark brown amorphous powder, namely the crude product of the pricklyash seed melanin;

removing residual protein in the crude product by an alkaline protease enzymolysis method. Preparing a crude product of the pepper seed melanin into a solution with the concentration of 1mg/mL, and preparing alkaline protease (the enzyme activity is 10000U/g) into an enzyme solution with the concentration of 10 g/L; mixing the crude product solution of the prickly ash seed melanin with alkaline protease liquid to carry out deproteinization by an enzymolysis method, wherein the enzyme addition amount is 6% of the volume of the crude product solution of the prickly ash seed melanin, the action condition is that the temperature is 50 ℃, the pH value is 9, and the enzymolysis time is 1 h; adjusting pH to 3, and performing acid precipitation to obtain black melanin of pricklyash seed coat.

② pricklyash seed extract

③ pricklyash seed protein peptide solution

Firstly, preparing white pepper seed protein from deoiled white pepper seed kernels by an alkali-soluble acid precipitation method; then mixing the pepper seed protein with deionized water (the substrate concentration of the pepper seed protein in the deionized water is 4.9%), preheating, adjusting the pH of the mixed solution to 3 after the preset temperature is reached to 32 ℃, adding pepsin (specific activity is 1: 3000), wherein the mass ratio of the pepsin to the pepper seed protein solution is 0.9: 100, extracting the pepper seed protein peptide for 4 hours; heating for inactivating enzyme, centrifuging at 8000r/min for 10min, collecting supernatant, and adjusting pH to slightly alkaline to obtain transparent viscous semen Zanthoxyli protein peptide solution.

(3) Preparation of bletilla striata gum: adding deionized water 15 times the mass of bletilla striata powder, soaking at 95 deg.C for 1.5h, filtering, and concentrating the filtrate to 1/4 times the original volume to obtain light yellow gelatinous bletilla striata gum.

Test relating to hair color-protecting antipruritic cream

(1) Acute transdermal toxicity test

12 healthy SPF-level Kunming mice with half male and female and 28-32 g weight are selected and randomly grouped, and the hair color-protecting and itching-relieving hair cream product prepared in the embodiment 1 of the invention is detected to the extent that the individual activities of the mice are not interfered and the experimental observation is not influenced. 2 times daily transdermal application of 2mg/g body weight dose is carried out for 14 days, and the test result shows that: the whole body condition, diet, drinking water and weight growth of the tested mice are normal, and no obvious poisoning phenomenon and death phenomenon appear, so that the product is judged to be of an actual non-toxic level.

(2) Phototoxicity test on skin

The method comprises the following steps of selecting 6 healthy adult white rabbits, coating 0.2mL of the hair color-protecting and itching-relieving hair cream product prepared in the embodiment 1 of the invention on a hair removal area for detection, observing skin reaction conditions of the hair removal area of the rabbits in 1 hour, 6 hours, 12 hours, 24 hours, 48 hours and 72 hours respectively, and finding out that: the skin of the hair-removed area of 6 rabbits had no erythema and edema, so the product of the invention was judged to be non-phototoxic.

(3) Efficacy evaluation test

Selecting 30 people who have more white hairs and need to dye tan hairs, randomly distributing 15 people in a test group and a comparison group. The same brand of pure natural hair dye is used for dyeing dark brown hair according to the test requirements, an allergy test is required before the test, and the hair is washed once every 3 days according to the requirements (the same brand of shampoo and hair conditioner is used).

The hair is firstly dyed according to the requirements of the specification, the hair color-protecting and itching-relieving hair cream product prepared in the invention in the embodiment 1 is coated before a test group goes out from the 3 rd day after the hair is dyed, the same amount of deionized water is sprayed on a control group, the time of outdoor at least 2 hours at noon is more than 30 days, the change condition of the test is recorded according to the requirements in the period, the hair is washed once every 3 days according to the requirements, and the first water after the hair washing is photographed. The statistical test results are as follows:

observing the water after the first three times of hair washing, and finding that the color of the water after the hair washing of the control group is darker than that of the water after the hair washing of the test group on the whole, and particularly the color of the water after the first time and the second time of hair washing after hair dyeing has significant difference;

secondly, after the product is continuously used for 30 days, statistics shows that: in the test group, 13 persons, 2 persons and 0 person have the hair dyeing color still being dark brown; in the control group, 4 persons with hair dyeing color of tan, 5 persons with brown color and 6 persons with light brown color (1 person has more white hair and needs re-dyeing treatment);

the hair quality of 10 people in the test group is obviously improved, the hair is relatively moist and flexible, and 1 case of discomfort reaction does not exist; and 2 persons (each man or woman) in the control group can self-describe the problems of dry hair and scalp itch after the hair dyeing.

The results show that the hair color-protecting and itching-relieving hair cream has the effects of color protection, color fixation, itching relieving, sun protection, moistening and moisturizing hair and repairing damaged hair.

It should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the examples given, those skilled in the art can modify the technical solution of the present invention as needed or equivalent substitutions without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. The hair color-protecting itching-relieving hair cream is characterized by being prepared from the following raw materials in parts by weight: 400 parts of Poncirus trifoliata leach liquor, 158 parts of bletilla striata gum, 35-45 parts of Poncirus trifoliata xanthone extract, 35-45 parts of pepper seed kernel extract, 26-31 parts of pepper seed protein peptide solution, 10-16 parts of shea butter, 2-4 parts of pepper seed coat melanin, and 0.6-1.0 part of vitamin C and/or vitamin E in total;

wherein the mass ratio of the vitamin C to the vitamin E is 5: 8;

mixing Poncirus trifoliata flower powder with ethanol solution, ultrasonic extracting, centrifuging to obtain supernatant, and evaporating to remove ethanol to obtain brown Poncirus trifoliata flower flavone extract.

2. The hair cream for protecting hair color and relieving itching according to claim 1,

the mass ratio of the poplar and the Chinese wolfberry flower powder to the water is 1: 140 to 160 parts;

the leaching conditions are specifically as follows: heating to 80 ℃, and leaching for 20-40 min;

and centrifuging the leaching liquor at the rotating speed of 8000r/min for 20min, taking supernate, and concentrating the supernate to 1/3-1/5 of the original volume to obtain light yellow Populus-trifoliata leaching liquor.

3. The hair cream for protecting hair color and relieving itching according to claim 2, wherein the mass ratio of the Poncirus trifoliata powder to the water is 1: 150.

4. the hair cream for protecting hair color and relieving itching according to claim 2, wherein the extraction conditions are specifically as follows: heating to 80 deg.C, and leaching for 30 min.

5. The hair cream of claim 2, wherein the supernatant is concentrated to 1/4 of the original volume.

6. The hair cream for protecting hair color and relieving itching according to claim 1,

the mass concentration of the ethanol solution is 80%;

the feed-liquid ratio of the poplar flower powder to the ethanol solution is 1g: 25-35 mL;

the ultrasonic extraction conditions are as follows: ultrasonic extracting for 20-40 min at the temperature of 60 ℃ under the condition of 250W;

7. The hair cream for protecting hair color and relieving itching according to claim 6, wherein the material-to-liquid ratio of the Poncirus trifoliata powder to the ethanol solution is 1g: 30 mL.

8. The hair cream for protecting hair color and relieving itching of claim 6, wherein the ultrasonic extraction is performed for 30 min.

9. The hair cream for protecting hair color and relieving itching as claimed in claim 1, wherein the preparation method of the zanthoxylum bungeanum seed coat melanin comprises:

s3, removing residual protein of the crude product of the pricklyash seed melanin in the step S2 by using alkaline protease, and performing acid precipitation treatment to obtain the pricklyash seed coat melanin;

the specific method in step S2 is as follows: placing the pepper seed shell powder into a NaOH solution for treatment, then adjusting the pH value to 2-3 for acid precipitation treatment to obtain dark brown amorphous powder, namely a crude product of the pepper seed melanin;

the concentration of the NaOH solution is 1.20moL/L, and the ratio of the pepper seed shell powder to the NaOH solution is 1g:24.6 mL;

the specific method of the step S3 is as follows: preparing a crude product of the pricklyash seed melanin into a solution, and preparing alkaline protease into an enzyme solution with the concentration of 10 g/L; mixing the crude pepper seed melanin solution with an alkaline protease solution, and performing enzymolysis deproteinization, wherein the enzyme dosage is 6% of the volume of the crude pepper seed melanin solution, the action conditions are that the temperature is 50 ℃, the pH is =9, and the enzymolysis time is 0.5-2 h; and adjusting the pH value to 2-3, and performing acid precipitation to obtain black pepper seed coat melanin.

10. The hair color-protecting itching-relieving hair cream according to claim 9, wherein the step S1 is embodied by: and (3) leaching with absolute ethyl alcohol to remove oil, drying and finely crushing the shells, and sieving with a 180-200-mesh sieve to obtain brown pepper seed shell powder.

11. The hair cream for protecting hair color and relieving itching as claimed in claim 9, wherein the ratio of the black pepper seed shell to the absolute ethyl alcohol is 1g:5mL, leached at 80 ℃ for 1 h.

12. The hair cream for protecting color and relieving itching of claim 9, wherein the pH is adjusted to 2.5 for acid precipitation treatment.

13. The hair cream for protecting color and relieving itching of claim 9, wherein the NaOH solution is treated at a temperature of 70 ℃ for 2 hours.

14. The hair color-protecting itching-relieving hair cream according to claim 9, wherein the enzyme activity of said alkaline protease is 10000U/g.

15. The hair cream for protecting hair color and relieving itching of claim 9, wherein the enzymolysis time is 1 h.

16. The hair cream for protecting color and relieving itching of claim 9, wherein the pH is adjusted to 2.5 for acid precipitation.

17. The hair cream for protecting hair color and relieving itching according to claim 1, wherein the method for preparing the pepper seed kernel extract comprises: pulverizing white semen Zanthoxyli, extracting with anhydrous ethanol at constant temperature, and separating to obtain deoiled white semen Zanthoxyli and extractive solution; distilling the extract to remove ethanol to obtain light yellow semen Zanthoxyli extract;

18. The hair cream for protecting hair color and relieving itching according to claim 17, wherein the extraction at constant temperature is carried out for 1-3 hours at 80 ℃.

19. The hair cream of claim 18, wherein the extraction at constant temperature is carried out at 80 ℃ for 2 h.

20. The hair cream for protecting hair color and relieving itching as claimed in claim 1, wherein the preparation method of the prickly ash seed protein peptide solution comprises: firstly, preparing white pepper seed protein from deoiled white pepper seed kernels by an alkali-soluble acid precipitation method; mixing the pepper seed protein with deionized water, preheating, adjusting the pH of the mixed solution to 2-3 after reaching a preset temperature, adding pepsin to extract the pepper seed protein peptide, performing enzyme deactivation after extraction, finally centrifuging, and adjusting the pH of a supernatant to be alkaline to obtain a transparent and viscous pepper seed protein peptide solution;

the predetermined temperature is 32 ℃; the mass ratio of the pepsin to the pepper seed protein solution is 0.9: 100, the extraction time is 2-4 h;

the enzyme deactivation treatment refers to heat preservation in a constant-temperature water bath at 90 ℃ for 15min, and cooling to room temperature;

21. The hair cream of claim 20, wherein the pH of the mixture is adjusted to 2.5.

22. The hair color protecting and itching relieving hair cream of claim 20, wherein said prickly ash seed protein has a substrate concentration in water of 4.9%.

23. The hair cream of claim 20, wherein the pepsin has a specific activity of 1: 3000-1: 3500.

24. the hair cream of claim 20, wherein the extraction time is 3 hours.

25. The hair cream for protecting hair color and relieving itching of claim 1, wherein the preparation method of bletilla hyacinthine gum comprises:

26. The hair cream for protecting color and relieving itching of claim 25, wherein the mass ratio of bletilla striata powder to water is 1: 15-20; the high-temperature soaking treatment conditions are as follows: soaking for 1-2h at 90-95 ℃.

27. The hair cream for protecting color and relieving itching of claim 26, wherein the mass ratio of bletilla striata powder to water is 1: 17.

28. the hair cream of claim 25, wherein the filtrate is concentrated to 1/3-1/5 of the volume of the original filtrate.

29. The hair cream of claim 28, wherein the filtrate is concentrated to 1/4% of the original volume of the filtrate.

30. The hair color-protecting itching-relieving hair cream according to claim 1, which is prepared from the following raw materials in parts by weight: 370 parts of Chinese wolfberry fruit extract, 155 parts of bletilla striata gum, 40 parts of Chinese wolfberry fruit xanthone extract, 40 parts of Chinese prickly ash seed kernel extract, 28.5 parts of Chinese prickly ash seed protein peptide solution, 13 parts of shea butter, 3 parts of Chinese prickly ash seed coat melanin and 0.8 part of vitamin C and/or vitamin E in total;

wherein the mass ratio of the vitamin C to the vitamin E is 5: 8.

31. a method for preparing the hair cream for protecting color and relieving itching of any one of claims 1 to 30, which comprises:

s2, mixing Shea butter and semen Zanthoxyli extract, and stirring; adding Poncirus trifoliata leach liquor and bletilla hyacinthina gum, stirring, and heating to 75-85 deg.C to obtain mixed solution B;

s3, under the ultraviolet irradiation condition, adding the B into the A while stirring, stirring uniformly, and cooling to room temperature; adding VC and/or VE mixed fine powder, stirring well, adjusting pH to subacidity, and stirring the mixture by magnetic force/shaking for 30min to obtain light brown hair color-protecting and itching-relieving hair cream.

32. The method for preparing hair cream for protecting hair color and relieving itching of claim 31, wherein the hair cream is heated to 80 ℃ after being uniformly stirred.

33. The method for preparing a hair cream for protecting hair color and relieving itching of claim 31, wherein the pH is adjusted to 6.5.