CN106167838B - Processing method of polyphenol-rich functional brown sugar - Google Patents
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- C13B20/16—Purification of sugar juices by physical means, e.g. osmosis or filtration
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- C—CHEMISTRY; METALLURGY
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Abstract
A processing method of functional brown sugar rich in polyphenol comprises the following steps: juicing sugarcane to obtain a raw material liquid, adding lime milk, and heating to obtain a heated raw material liquid; filtering with a first-stage ceramic membrane to obtain a first-stage membrane clear juice and a first-stage membrane concentrated juice; filtering with secondary membrane to obtain secondary membrane clear juice and secondary membrane concentrated juice rich in phenols; the secondary membrane concentrated juice is used for producing the functional brown sugar rich in polyphenol, and the method comprises the following steps: selecting at least one or more of donkey-hide gelatin, red dates, longan, angelica sinensis, codonopsis pilosula, medlar, lily, motherwort and ginger as functional components, adding water, decocting to obtain juice or drying and crushing into powder, evaporating and concentrating the secondary membrane concentrated juice, adding the juice or the powder, decocting sugar, crystallizing, molding and packaging to obtain the polyphenol-rich functional brown sugar. According to the invention, polyphenols are effectively enriched, and various functional components with homology of medicine and food are added, so that the quality and the nutritional value of the brown sugar are improved by 4-8 times compared with the traditional production process.
Description
Technical Field
The invention relates to the field of sugar manufacturing processes, in particular to a processing method of polyphenol-rich functional brown sugar.
Background
The sugarcane industry is a pillar industry of Guangxi national economy, relates to a comprehensive industry of two industries and three industries, is closely related to the sugarcane industry in production and life of nearly half of people in a region, and is a main support for financial income and employment and income increase of farmers in minority regions and border regions. In recent years, sugar prices have been dropping due to the influence of international sugar prices. In addition, the production cost is high, the agricultural foundation is weak, the mechanization degree is low, the variety of industrial products is single, the market competitiveness is lacked, and the like, so that the Guangxi sugar industry is moved to the vital crossroads. A series of policies are developed for the government of Guangxi province to promote transformation and upgrade of the Guangxi sugar industry, and a general scheme about promoting the secondary entrepreneurship of the Guangxi sugar industry is definitely provided, wherein the variety industry of sugarcane is taken as a gripper, the development of non-sugar products of the sugarcane is accelerated, the anti-risk capability of the industry is enhanced, and the sustainable development capability and the international competitiveness of the Guangxi sugar industry are practically improved.
Brown sugar is a brown sugar with a dark color, and is called brown sugar in japan and taiwan because of its approximately black color, and mainland china is called brown sugar. Brown sugar is sucrose that has not been highly refined, discolored. Besides providing heat energy, the beverage also contains a small amount of polyphenols, a plurality of amino acids essential to human bodies, malic acid, riboflavin, carotene, nicotinic acid and trace elements such as calcium, potassium, iron, magnesium, folic acid and other minerals essential to human growth and development, has high nutritional value, and is beneficial to acid-base balance in human bodies.
The traditional brown sugar production method mainly comprises the steps of heating cane juice to boiling after cane is juiced, floating impurities along with bubbles at the moment, skimming upper-layer scum, performing stepwise evaporation concentration, cooling and stirring to stimulate crystallization after the upper-layer scum is concentrated to a certain hammer degree, and forming flaky sugar or powdery sugar. However, the impurity content of the brown sugar product is high due to low clarification efficiency of the traditional brown sugar production process, and the brown sugar product is turbid after being dissolved in water; and the traditional process has low production efficiency and is difficult to realize industrial production.
The polyphenol compound is a general term for plant components with a plurality of phenolic hydroxyl groups in the molecular structure, and comprises phenolic acid and flavonoid compounds. The polyphenol compounds have certain antioxidant capacity, are listed in the category of natural antioxidants, are excellent donors of hydrogen or electrons, and have obvious scavenging effect on superoxide anions, hydroxyl radicals and other free radicals which can generate peroxidation to cause structural and functional damage. Oxidative damage is a significant cause of many chronic diseases, such as cardiovascular diseases, cancer and aging. The antioxidant function of polyphenol can prevent these chronic diseases. Sugarcane contains a large amount of pigment substances which belong to polyphenol compounds and flavonoid compounds, and the content of the polyphenol substances is not less than that of fruits or vegetables. The polyphenol extract in the sugarcane has stronger activities of eliminating free radicals and resisting oxidation, and has important significance for nutrition, health and disease prevention tools of human beings. Researches show that the polyphenols contained in the sugarcane belong to water-soluble pigments, are C6-C3-C6 carbon skeletons, have more than two hydroxyl groups on benzene rings, and are generally classified into 3 types: namely anthocyanidin, anthoxanthin (flavonoid) and catechin. Determined according to the hessian austenite and clark studies: the polyphenolic compounds in sugarcane are concentrated in the tip part near the growing point. The distribution of the high molecular weight polyphenol compounds with the molecular weight of more than 5000 in the whole sugarcane is as follows: 33% of sugarcane leaves, 37% of sugarcane tips (0-11 knots), and only 30% of sugarcane stalks after tip removal, so that although the sugarcane tips are only small parts of the sugarcane stalks, more polyphenols are contained in the sugarcane tips than the sugarcane stalks and are relatively concentrated. During the process of squeezing juice from sugar cane, most of these water-soluble polyphenol compounds enter the sugar cane juice.
Therefore, when sugarcane with leaves is taken as a raw material, the sugarcane is used for producing brown sugar products after being squeezed, and the sugarcane juice is cleaned by adopting an efficient membrane separation technology in the process, so that the quality of the brown sugar can be effectively improved; the process for producing the brown sugar by the multi-stage membrane parallel treatment of the cane juice enriched polyphenols can effectively improve the nutritional value and the functional value of the brown sugar. The requirements of modern people on functional nutritious food are met; meanwhile, the method also meets the requirements of developing the diversification and high-value of sugarcane products, and is an embodiment for developing a new path for the development of the sugarcane industry.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a processing method of functional brown sugar rich in polyphenol.
In order to achieve the purpose, the invention adopts the following technical scheme:
a processing method of functional brown sugar rich in polyphenol comprises the following steps:
(1) taking sugarcane without sugarcane tips and sugarcane leaves as raw materials, juicing and primarily removing impurities to obtain raw material liquid;
(2) adding lime milk into the raw material liquid to adjust the pH value to 7.0-7.5, and heating to 80-90 ℃ to obtain a heated raw material liquid;
(3) filtering and heating the raw material liquid by adopting a primary ceramic membrane with the pore diameter of 50-200 nm to obtain primary membrane clear juice and primary membrane concentrated juice;
(4) filtering the primary membrane clear juice by using a secondary membrane with the molecular weight cutoff of 1-5 kDa to obtain secondary membrane clear juice and secondary membrane concentrated juice enriched with phenolic substances;
(5) the secondary membrane concentrated juice is used for producing the functional brown sugar rich in polyphenol, and the specific method comprises the following steps:
firstly, selecting at least one or more of donkey-hide gelatin, red dates, longan, angelica, codonopsis pilosula, medlar, lily, motherwort and ginger as functional components, adding water, decocting to obtain juice or drying and crushing into powder,
and then, evaporating and concentrating the secondary membrane concentrated juice to 60-65-degree BX, adding the juice or powder of the functional components, uniformly stirring, decocting the sugar at normal pressure until the brix of the sugar cake is 94-96-degree BX, stirring the sugar cake to crystallize, pouring the sugar cake into a mold, naturally cooling and molding, and packaging to obtain the polyphenol-rich functional brown sugar.
The second-level membrane clear juice is used for producing white granulated sugar.
The primary membrane concentrated juice is saturated by carbonic acid, subjected to plate-frame filter pressing and then pumped into a raw material liquid.
And (3) transmembrane pressure difference is 0.25-0.45 Mpa, membrane surface flow rate is 4-5 m/s, and volume concentration times are 8-12.
And (4) transmembrane pressure difference is 0.6-1.0 Mpa, membrane surface flow rate is 4.5-5.5 m/s, and volume concentration multiple is 8-10.
In the step (5), 2 parts of donkey-hide gelatin, 10 parts of red date, 5 parts of longan, 1 part of angelica, 1 part of codonopsis pilosula, 0.5 part of medlar, 2 parts of lily, 1 part of motherwort and 1 part of ginger are counted according to parts by weight.
In the step (5), 10 parts of donkey-hide gelatin, 5 parts of red date, 2 parts of longan, 2 parts of angelica, 1 part of codonopsis pilosula, 0.5 part of medlar, 3 parts of lily, 2 parts of motherwort and 3 parts of ginger are counted according to parts by weight.
In the step (5), the total weight of the added functional components is 5-15% of the weight of the second-stage membrane concentrated juice after evaporation concentration to 60-65 DEG BX.
Donkey-hide gelatin, a good medicine for enriching blood and stopping bleeding, and nourishing and moistening dryness, has significant curative effects in the aspects of blood deficiency and chlorosis, dizziness and palpitation, muscle atrophy and weakness, vexation and insomnia, deficient wind stirring, lung dryness and cough, over-work cough and hemoptysis, hematemesis, hematochezia and metrorrhagia and metrostaxis. Colla Corii Asini has hematogenesis promoting effect, and can be used for treating anemia due to blood loss, iron deficiency anemia, aplastic anemia, senile asthenia, and tonic for children and women. It can improve growth of children and teenagers, and has effects of nourishing skin, and making skin smooth and elastic.
The red dates, also known as the Chinese dates, are sweet in taste and warm in nature, enter spleen and stomach channels, and have the functions of tonifying middle-jiao and Qi, nourishing blood and soothing nerves and relieving drug properties; modern pharmacology finds that the red dates contain rich nutritional ingredients such as protein, fat, saccharides, organic acid, vitamin A, vitamin C, various trace calcium, amino acid and the like, particularly have very high vitamin content, have the reputation of 'natural vitamin pills', and have the effects of nourishing yin, tonifying yang and replenishing blood.
Longan is also called longan, has warm and sweet nature and flavor, can benefit heart and spleen and tonify qi and blood; has good nourishing and tonifying effects. Can be used for treating insomnia, amnesia, palpitation, and vertigo caused by deficiency of heart and spleen and deficiency of qi and blood. Can also be used for treating weakness after illness or mental deterioration. It is also suitable for women to tonify after parturition. Li Shizhen is recorded in Ben Cao gang mu: "litchi is a precious food and longan is a good food". The longan is highly preferred. Pharmacological research proves that longan contains various nutrients such as glucose, sucrose, vitamin A, B and the like. It contains more protein, fat and various minerals. These nutrients are essential to the human body. Especially for those who are tired of heart and who consume qi and blood of heart and spleen. Because of containing a large amount of trace elements beneficial to human health, longan has become a good medicine for a long time.
Chinese angelica: the Chinese medicinal composition is prepared from Angelica sinensis Diels, Angelica sinensis West, Angelica regale, Angelica sinensis Diels, Angelica sinensis Dahurica, and Angelica gigas nakai, and has a height of 0.4-1 m. The flowering period is 6-7 months, and the fruit period is 7-9 months. Dang Gui is sweet, pungent, bitter and warm in nature. Radix Angelicae sinensis has effects of replenishing blood, promoting blood circulation, regulating menstruation, relieving pain, loosening bowel, and relieving constipation, and can be used for treating sallow complexion due to blood deficiency,
Vertigo, palpitation, menoxenia, amenorrhea, dysmenorrhea, abdominal pain due to asthenia cold, constipation due to intestinal dryness, and rheumatalgia. The angelica sinensis polysaccharide which is an effective component in angelica sinensis has immunological activity and has better curative effect on treating tumors, radiation injury and the like. Angelica polysaccharide can affect hematopoietic system and promote hematopoiesis.
Codonopsis pilosula: the radix Codonopsis is dried root of radix Platycodi perennial herb plant such as radix Codonopsis, vegetarian flower radix Codonopsis, radix Codonopsis and other plants belonging to the same genus. Codonopsis pilosula is warm in nature and sweet in taste, and has the main functions of tonifying middle-jiao and Qi, invigorating spleen and benefiting lung. Can be used for treating lung deficiency, short breath, palpitation, anorexia, loose stool, asthma, cough, internal heat, and diabetes. The codonopsis pilosula polysaccharide which is a chemical component in the codonopsis pilosula has good immunity up-regulation effect, and has the effects of regulating the immunity of organisms, eliminating free radicals, producing blood and resisting tumors.
The medlar is a commonly used traditional Chinese medicine for tonifying the liver and the kidney, is fresh red in color and is fragrant and sweet in taste. Modern medical research proves that the health-care food contains betaine, polysaccharide, crude fat, crude protein, carotene, vitamin A, vitamin C, vitamin B1, vitamin B2, calcium, phosphorus, iron, zinc, manganese, linoleic acid and other nutritional ingredients, and has a function of promoting the hematopoietic function.
The lily has high medicinal value. Detoxicating, regulating spleen and invigorating stomach, promoting diuresis, resolving food stagnation, calming heart, tranquilizing mind, and promoting blood circulation. It can be used for treating cough, hemoptysis, vexation, palpitation, and has special effects in treating diseases of pulmonary collaterals, promoting health, and resisting aging. Pharmacological research shows that the lily stem has the function of increasing leucocytes, so that the lily stem has better curative effect on various cancers.
Herba Leonuri has effects of promoting blood circulation, regulating menstruation, removing blood stasis, relieving pain, inducing diuresis, relieving swelling, clearing heat and detoxicating, and can be used for treating menoxenia, dysmenorrhea, amenorrhea, hypomenorrhea, puerperal blood faintness, blood stasis, abdominal pain, kidney pain, edema, dysuresia, hematuria, etc. It contains multiple trace elements, selenium has the functions of enhancing the activity of immunocytes and relieving atherosclerosis, and manganese has the functions of resisting oxidation, resisting fatigue, preventing aging and the like. Herba Leonuri also has skin caring effect.
The ginger peel is pungent and cool in nature, and is used for treating skin edema and promoting skin hydration; ginger juice is pungent and warm, strong in stomach cold dispelling effect, and is mostly used for vomiting; the dried ginger is pungent and warm, warms the middle energizer to arouse cold, returns yang to dredge vessels, warms the spleen and has large cold strength, the baked ginger is pungent and bitter in taste, moves inside without going outside, and warms the lower part of the body to be cold; the chard of baked ginger is warm and cold in the warm blood system; roasted ginger, bitter in flavor and warm in nature, is more suitable for warming stomach and intestine. Fresh ginger, pungent and warm in property, has the actions of tonifying spleen and stomach, warming middle energizer, checking adverse rise of qi and arresting vomiting, removing dampness and relieving stuffiness, relieving cough and eliminating phlegm, and is good at checking adverse rise of qi and arresting vomiting. The ginger has the effects of dispersing, arresting vomiting, relieving cough and the like in the traditional Chinese medicine and pharmacy. Can be used for inhibiting tumor, stimulating appetite, invigorating spleen, relieving swelling and pain.
Compared with the prior art, the invention has the following beneficial effects:
according to the method, the sugarcane juice is filtered by adopting two stages of ceramic membranes with different membrane pore sizes, the polyphenol-rich functional brown sugar is produced by adopting the secondary membrane filtration concentrated juice, and the functional polyphenol substances in the secondary membrane concentrated juice are effectively enriched and are increased by 4-8 times compared with the traditional production process, so that the quality and the nutritional value of the brown sugar are improved. The turbidity of the obtained nutritious brown sugar after being dissolved to 12 degrees Bx is below 1NTU, the obtained product brown sugar has rich fragrance and is tan, and all indexes of the product brown sugar meet the national standard requirements of first-grade brown sugar (brown sugar).
The color value of clear juice obtained by the secondary nanofiltration membrane filtration is reduced by 40-60 percent relative to the mixed juice, the turbidity is reduced by 99.99 percent, the purity is improved by 1-3 percent, and the clear juice obtained by the secondary membrane filtration can be used for producing white granulated sugar.
After the heated raw material liquid is obtained, ceramic membranes with different membrane pore sizes are adopted for filtering twice, the ceramic membrane with larger pore size is firstly used for filtering and removing most of non-sugar impurities such as ash, colloid, small-particle bagasse pith and the like in the mixed juice, the membrane with smaller pore size is then used for filtering the primary clear juice, the polyphenols and the like in the primary clear juice are effectively intercepted, the secondary concentrated juice with the polyphenols enriched is obtained and is used for producing the polyphenol-enriched functional brown sugar, and meanwhile, the secondary clear juice with lower color value and turbidity and higher purity can be used for producing white granulated sugar. In the prior art, a process of filtering sugar juice twice does not appear.
The filter medium is characterized by comprising a first-stage ceramic membrane with the pore diameter of 50-200 nm and a second-stage nanofiltration membrane with the molecular weight cutoff of 1-5 kDa, wherein only two-stage filtration is carried out by using the membrane with the pore diameter, so that the enrichment of polyphenols can be ensured, and other ineffective impurities influencing the quality of brown sugar can be reduced as far as possible.
According to the invention, a plurality of functional components with homology of medicine and food are added into the brown sugar, so that the taste of the brown sugar is enriched, the selection of different consumers is met, and meanwhile, the nutritional components of the brown sugar are further increased.
Detailed Description
The technical solution of the present invention is further illustrated by the following examples.
Example 1
A processing method of functional brown sugar rich in polyphenol comprises the following steps:
(1) taking the sugarcane without the sugarcane tips and the sugarcane leaves as raw materials;
(2) squeezing sugarcane to obtain mixed juice, removing large particle impurities such as bagasse by using a 100-mesh vibrating screen, and removing small particle impurities by using a 200-mesh rotary vibrating screen to obtain a raw material solution;
(3) adding lime milk into the raw material liquid to adjust the pH value to 7.5, heating the raw material liquid to 60 ℃ through a tubular heat exchanger, pumping the raw material liquid to a buffer tank, and heating the raw material liquid to 85 ℃ through steam to obtain heated raw material liquid;
(4) clarifying and filtering with 50nm primary ceramic membrane with transmembrane pressure difference of 0.45Mpa, membrane surface flow rate of 4m/s and volume concentration multiple of 10 to remove most of non-sugar impurities such as bacteria, ash and colloid in the mixed juice to obtain primary membrane clear juice and primary membrane filtration concentrated solution, and pumping the primary membrane concentrated solution into the raw material solution after passing through a membrane concentrated solution clarification treatment system;
(5) pumping the primary membrane clear juice into a secondary membrane feed liquid tank, filtering by a secondary nanofiltration membrane with the molecular weight cutoff of 1kDa, wherein the transmembrane pressure difference is 1.0Mpa, the membrane surface flow rate is 5.5m/s, the filtering temperature is 70 ℃, the volume concentration multiple is 8, and the secondary membrane effectively intercepts polyphenols and the like in the primary membrane clear juice to respectively obtain secondary membrane clear juice with lower color value, lower turbidity and higher purity and secondary membrane concentrated juice rich in polyphenols; and pumping the secondary membrane clear juice to a clear juice box of a sugar refinery for producing white granulated sugar, and using the secondary membrane concentrated juice for producing the polyphenol-rich functional brown sugar, wherein the specific method comprises the following steps:
firstly, weighing 2 parts of donkey-hide gelatin, 10 parts of red date, 5 parts of longan, 1 part of angelica, 1 part of codonopsis pilosula, 0.5 part of medlar, 2 parts of lily, 1 part of motherwort and 1 part of ginger according to the parts by weight, adding 8-10 times of water by weight, decocting for 60min, removing residues, taking juice,
and then, concentrating the secondary membrane concentrated juice to 65-degree BX through a falling film vacuum evaporation system, adding the juice obtained by decoction, uniformly stirring, decocting sugar by using an interlayer iron pan under the normal pressure state until the sugar cake hammer degree is 94-95-degree BX, transferring the sugar cake to a crystallization assisting box, stirring and crystallizing, pouring into a wood mold paved with food paper subjected to strict sterilization, naturally cooling and forming, removing the paper, and packaging to obtain the polyphenol-rich functional brown sugar.
The quality of the primary membrane juice, the secondary membrane juice and the secondary membrane juice concentrate obtained in this example is shown in table 1, and the quality of the brown sugar product is shown in table 2.
TABLE 1 quality of sugarcane juice before and after filming
TABLE 2 comparison of various indexes of brown sugar
Note: the total sugar is reduced sugar plus sucrose
Example 2
A processing method of functional brown sugar rich in polyphenol comprises the following steps:
(1) taking the sugarcane without the sugarcane tips and the sugarcane leaves as raw materials;
(2) squeezing sugarcane to obtain mixed juice, removing large-particle bagasse and other bagasse pith by using a 50-mesh vibrating screen, filtering by using a 250-mesh rotary vibrating screen, and removing small-particle impurities to obtain a raw material solution;
(2) adding lime milk into the raw material liquid to adjust the pH value to 7.0, heating the raw material liquid to 55 ℃ through a tubular heat exchanger, pumping the raw material liquid to a raw material tank buffer tank, and heating the raw material liquid to 80 ℃ through steam to obtain heated raw material liquid;
(3) clarifying and filtering with 100nm primary ceramic membrane with transmembrane pressure difference of 0.35Mpa, membrane surface flow rate of 4.5m/s and volume concentration multiple of 10 to remove most of impurities such as bacteria, ash and colloid in the mixed juice to obtain primary membrane clear juice and primary membrane filtration concentrated solution, and pumping the primary membrane concentrated solution into the raw material solution after passing through a membrane concentrated solution clarification treatment system;
(4) pumping the primary membrane clear juice into a secondary membrane feed liquid tank, filtering by a secondary nanofiltration membrane with the molecular weight cutoff of 5kDa, wherein the transmembrane pressure difference is 0.6Mpa, the membrane surface flow rate is 5m/s, the filtering temperature is 75 ℃, the volume concentration multiple is 10, and effectively intercepting polyphenols and the like of the primary membrane clear juice to respectively obtain secondary membrane clear juice with lower color value, lower turbidity and higher purity and secondary membrane concentrated juice rich in polyphenols; and pumping the secondary membrane clear juice to a clear juice box of a sugar refinery for producing white granulated sugar, and using the secondary membrane concentrated juice for producing the polyphenol-rich functional brown sugar, wherein the specific method comprises the following steps:
firstly, weighing 10 parts of donkey-hide gelatin, 5 parts of red dates, 2 parts of longan, 2 parts of angelica, 1 part of codonopsis pilosula, 0.5 part of medlar, 3 parts of lily, 2 parts of motherwort and 3 parts of ginger according to parts by weight, cleaning the raw material components, removing shells and kernels, drying until the water content is lower than five percent, crushing the raw material components together, and sieving the crushed raw material components with a 80-100-mesh sieve to obtain powder;
and then, concentrating the secondary membrane concentrated juice to 65-degree BX through a falling film vacuum evaporation system, adding the powder, wherein the adding amount of the powder is 10% of the weight of the secondary membrane concentrated juice after evaporation concentration to 60-65-degree BX, uniformly stirring, boiling the sugar with an interlayer iron pan under the normal pressure state until the brix of the sugar cake is 94-95-degree BX, transferring the sugar cake to a crystallization assisting box, stirring and crystallizing, pouring the sugar cake into a wood mold paved with food paper subjected to strict sterilization, naturally cooling and molding the sugar cake, and packaging the sugar cake after paper removal to obtain the polyphenol-rich functional black sugar.
Example 3
A processing method of functional brown sugar rich in polyphenol comprises the following steps:
(1) squeezing sugarcane to obtain mixed juice, removing large particle impurities such as bagasse and the like by using a 80-mesh vibrating screen, and removing small particle impurities by using a 300-mesh rotary vibrating screen to obtain a raw material solution;
(2) adding lime milk into the raw material liquid to adjust the pH value to 7.2, heating the raw material liquid to 65 ℃ through a tubular heat exchanger, pumping the raw material liquid to a raw material tank buffer tank, and heating the raw material liquid to 90 ℃ through steam to obtain heated raw material liquid;
(3) clarifying and filtering with 200nm primary ceramic membrane with transmembrane pressure difference of 0.25Mpa, membrane surface flow rate of 5m/s and volume concentration multiple of 10 to remove most of impurities such as bacteria, ash and colloid in the mixed juice to obtain primary membrane clear juice and primary membrane filtration concentrated solution, and pumping the primary membrane concentrated solution into the raw material solution after passing through a membrane concentrated solution clarification treatment system;
(4) pumping the primary membrane clear juice into a secondary membrane feed liquid tank, filtering by a secondary membrane with the molecular weight cutoff of 2kDa, wherein the transmembrane pressure difference is 0.8Mpa, the membrane surface flow rate is 4.5m/s, the filtering temperature is 70 ℃, the volume concentration multiple is 8, and effectively intercepting polyphenols and the like in the primary membrane clear juice to respectively obtain secondary membrane clear juice with lower color value, lower turbidity and higher purity and secondary membrane concentrated juice rich in polyphenols; and pumping the secondary membrane clear juice to a clear juice box of a sugar refinery for producing white granulated sugar, and using the secondary membrane concentrated juice for producing the polyphenol-rich functional brown sugar, wherein the specific method comprises the following steps:
firstly, arbitrarily weighing donkey-hide gelatin, red dates, longan, angelica sinensis, codonopsis pilosula, medlar, lily, motherwort and ginger, wherein the weight of the donkey-hide gelatin, the red dates, the longan, the angelica sinensis, the codonopsis pilosula, the medlar, the lily, the motherwort and the ginger is 5% of the weight of the second-level membrane concentrated juice after evaporation concentration to 60-65 DEG BX, adding 8-10 times of water by weight, decocting for 60min, removing; or crushing, and sieving with a sieve of 80-100 meshes to obtain powder;
and then, concentrating the secondary membrane concentrated juice to 65-degree BX through a falling film vacuum evaporation system, adding the juice or powder obtained by decoction, uniformly stirring, decocting the sugar by using an interlayer iron pan under the normal pressure state until the brix of the sugar cake is 94-95-degree BX, transferring the sugar cake to a crystallization-promoting box, stirring for crystallization, pouring the sugar cake into a wood mold paved with food paper subjected to strict sterilization, naturally cooling and forming, removing the paper, and packaging to obtain the polyphenol-rich functional brown sugar.
Claims (3)
1. The processing method of the functional brown sugar rich in polyphenol is characterized by comprising the following steps:
(1) taking sugarcane without sugarcane tips and sugarcane leaves as raw materials, juicing and primarily removing impurities to obtain raw material liquid;
(2) adding lime milk into the raw material liquid to adjust the pH value to 7.0-7.5, and heating to 80-90 ℃ to obtain a heated raw material liquid;
(3) filtering and heating the raw material liquid by adopting a primary ceramic membrane with the aperture of 50-200 nm to obtain primary membrane clear juice and primary membrane concentrated juice, wherein the transmembrane pressure difference is 0.25-0.45 Mpa, the membrane surface flow rate is 4-5 m/s, and the volume concentration time is 8-12;
(4) filtering the primary membrane clear juice by using a secondary membrane with the molecular weight cutoff of 1-5 kDa to obtain secondary membrane clear juice and secondary membrane concentrated juice enriched with phenolic substances, wherein the transmembrane pressure difference is 0.6-1.0 Mpa, the membrane surface flow rate is 4.5-5.5 m/s, and the volume concentration multiple is 8-10;
(5) the secondary membrane concentrated juice is used for producing the functional brown sugar rich in polyphenol, and the specific method comprises the following steps:
firstly, selecting at least one or more of donkey-hide gelatin, red dates, longan, angelica, codonopsis pilosula, medlar, lily, motherwort and ginger as functional components, adding water, decocting to obtain juice or drying and crushing into powder,
then, evaporating and concentrating the secondary membrane concentrated juice to 60-65%oBX, adding the juice or powder of the above functional components, stirring, and decocting at normal pressure to give sugar cake with brix94~96oBX, pouring the sugar cake into a mould after stirring and crystallizing, naturally cooling and forming, and packaging to obtain the polyphenol-rich functional brown sugar;
in the step (5), 2 parts of donkey-hide gelatin, 10 parts of red date, 5 parts of longan, 1 part of angelica, 1 part of codonopsis pilosula, 0.5 part of medlar, 2 parts of lily, 1 part of motherwort and 1 part of ginger are counted in parts by weight; or in the step (5), 10 parts of donkey-hide gelatin, 5 parts of red date, 2 parts of longan, 2 parts of angelica, 1 part of codonopsis pilosula, 0.5 part of medlar, 3 parts of lily, 2 parts of motherwort and 3 parts of ginger by weight;
in the step (5), the total weight of the added functional components is the second-stage membrane concentrated juice, and the evaporation concentration is carried out until the total weight is 60-65%o5-15% of the post-BX weight.
2. The method of claim 1, wherein the secondary membrane juice is used for white sugar production.
3. The method for processing the functional brown sugar rich in polyphenol according to claim 1, wherein the primary membrane concentrated juice is saturated with carbonic acid, subjected to plate and frame filter pressing, and then pumped into a raw material liquid.
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| CN106819332A (en) * | 2017-02-09 | 2017-06-13 | 合肥原素坊食品有限公司 | A kind of green tea brown sugar and preparation method thereof |
| CN106720884A (en) * | 2017-02-09 | 2017-05-31 | 合肥原素坊食品有限公司 | A kind of black tea brown sugar and preparation method thereof |
| CN107149021B (en) * | 2017-04-26 | 2020-07-17 | 广西怡神糖业有限公司 | Production method of longan and red date black sugar blocks |
| CN109380711A (en) * | 2017-08-08 | 2019-02-26 | 贵州美人芋农业发展有限公司 | A kind of method that banana dasheen bar extracts plant sugar |
| CN107788504A (en) * | 2017-09-22 | 2018-03-13 | 广州天惠食品股份有限公司 | A kind of brown sugar syrup and preparation method thereof |
| CN110172532A (en) * | 2019-06-19 | 2019-08-27 | 福建省农业科学院亚热带农业研究所（福建省农业科学院蔗麻研究中心） | A kind of brown sugar made of longan extract |
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| CN104413333A (en) * | 2013-09-01 | 2015-03-18 | 青岛道合生物科技有限公司 | Ginger-flavor red date-black sugar block |
| CN103993106A (en) * | 2014-05-16 | 2014-08-20 | 广西大学 | Industrialized production method of primitive brown sugar |
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