CN116622798A - Hericium erinaceus strain and culture method thereof, hericium erinaceus-ginseng bidirectional solid fermentation method and method for efficiently converting rare ginsenoside - Google Patents

Abstract

The application relates to the technical field of fermentation, in particular to a hericium erinaceus strain and a culture method thereof, a hericium erinaceus-ginseng bidirectional solid fermentation method and a method for efficiently converting rare ginsenoside. The preservation number of the hericium erinaceus strain is CGMCC No.22450. The hericium erinaceus strain disclosed by the application can be used for efficiently converting rare ginsenoside in ginseng.

Description

Hericium erinaceus strain and culture method thereof, hericium erinaceus-ginseng bidirectional solid fermentation method and method for efficiently converting rare ginsenoside

The application relates to a hericium erinaceus strain with the application date of 2021, month 07 and 13, a culture method thereof, a hericium erinaceus-ginseng bidirectional solid fermentation method and a method for efficiently converting rare ginsenoside, and divisional application of the application with the application number of 202110789327.1.

Technical Field

The application relates to the technical field of fermentation, in particular to a hericium erinaceus strain and a culture method thereof, a hericium erinaceus-ginseng bidirectional solid fermentation method and a method for efficiently converting rare ginsenoside.

Background

Ginseng (Panax ginseng C.A.mey) is a perennial root negative herbal dicotyledon, is a traditional rare Chinese medicinal material in China, is mainly produced in northeast China, and is known as 'Baicaowang'. According to the records in Chinese pharmacopoeia, the ginseng has multiple medicinal effects of reinforcing primordial qi, restoring pulse, relieving depletion, soothing the nerves and the like. Research shows that the pharmacological activity of ginseng is mainly dependent on ginsenoside and rare ginsenoside Rd and Rg ₁ 、Rg ₃ 、Rh ₁ 、Rh ₂ Etc. However, the natural saponins have extremely low content, complex extraction and separation and extremely low yield, and cannot be industrially produced, so that the conversion of the ginsenoside into rare saponins has profound significance.

The ginseng solid fermentation technology uses ginseng medicinal materials or medicinal residues as a medicinal substrate, and hydrolyzes cellulose substances in the medicinal substrate through an enzyme system rich in microorganisms to provide energy for growth metabolism of the ginseng medicinal materials or medicinal residues. The ginsenoside is structurally modified through the physiological metabolism and biochemical reaction process of the microorganism, so that the ginsenoside generates new bioactive components and new pharmacodynamic effects. Through the microbial transformation effect, the sugar chain structure of the saponin can be quickly and effectively changed, so that the prototype ginsenoside is converted into rare ginsenoside, and the biological activity of the rare ginsenoside is improved. For example, lactobacillus plantarum KCCM 11613P can be used for preparing ginsenoside Rb ₂ 、Rb ₃ The obtained extract can be converted into ginsenoside Rd, and lactobacillus lactis Bi-07 and lactobacillus rhamnosus HN001 can be used for preparing ginsenoside Rb ₁ Rc and Rb ₂ And (3) performing transformation to obtain the specific deglycosylated ginsenoside Rd as a final metabolite. Hasegawa et al used the isolation and screening of strain Prevotella oris from intestinal anaerobic microorganisms to obtain various ginsenosides (such as Rb ₁ 、Rc、Rd) and the like) into rare ginsenoside components. Qin et al prepared diol-type ginsenoside Rb in Paecilomyces Bainier sp.229 by beta-glucosidase ₁ Is converted into rare ginsenoside CK. Choi converts ginsenoside Rc into rare ginsenoside CK by hydrolyzing a specific glycoside substance bound to ginsenoside with a specific enzyme in microorganism from the protein engineering point of view.

The fermentation product of the ginseng medicinal material subjected to microbial solid fermentation is more beneficial to digestion and absorption of human bodies, so that the original toxicity of the medicinal material is reduced, and the medicinal value of the medicinal material is greatly improved. For example, rare ginsenoside Rg obtained by conversion of prototype ginsenoside ₂ 、Rg ₃ Has high anxiolytic, antiinflammatory and anticancer effects, and rare saponins CK and F ₁₂ Has good pharmacodynamic activity in various aspects such as anti-tumor, anti-mutation, anti-inflammatory, liver-protecting, asthma and the like, and has higher pharmacological activity compared with the original ginsenoside. Wang Hongfeng when researching chemical composition change in the process of ginseng bidirectional solid fermentation, it is found that a large amount of rare ginsenoside is detected in the ginseng medicinal mycoplasm, and ginsenoside Rg is hypothesized ₁ Re and Rb can be converted into rare ginsenoside Rg ₃ Rh, etc. Compared with a chemical conversion method, the biological conversion technology of the bidirectional fermentation can greatly improve the conversion efficiency, and meanwhile, harmful byproducts are not generated. For example, ginsenoside Rd is converted into a large amount of rare ginsenoside through deglycosylation.

Hericium erinaceus (Hericium erinaceus) belonging to the genus Hericium (Hericium) of the order Hericium erinaceus (Agrocomycetes) of the order Basidiomycetes (Basidiomycetaceae), the fruiting body being annual, having no stalks or very short side stalks of the literature, being fresh, being soft in the late stage, being odorless and tasteless, being cheese-or cork-screw after drying, being slightly rancid. The growth process is accompanied with the generation of secondary metabolites such as steroid compounds, alkaloid compounds, aromatic compounds, terpene compounds, fatty acids and lipids thereof, and the like, and has certain functions of antioxidation, antibiosis, anti-aging, anti-tumor, neuroprotection, anti-inflammatory and the like. The potential pharmaceutical value of these secondary metabolites of Hericium erinaceus is also of great interest.

Many microorganisms in nature can grow on solid substrates, particularly filamentous fungi, and can grow in the absence of water, inter-attachment with solid drug-resistant substrates. Hericium erinaceus is a precious large-scale edible and medicinal fungus in nature, and can be subjected to bidirectional fermentation with solid matrixes such as medicinal materials or medicinal residues. In the solid fermentation process, various secondary metabolites produced by fungi through metabolism can modify the material basis of the solid matrix, so that the content of active substances in the matrix is increased. For example, liu Mingming and the like utilize Hericium erinaceus to perform bi-directional fermentation with a wheat solid medium, and as a result, it was found that the Hericium erinaceus fermentation group significantly increased the protein content in the wheat matrix compared with the control group. After the hericium erinaceus and the soybean solid culture medium are fermented, the contents of total flavonoids and total triterpenes are reduced, and the contents of total polyphenols and anthocyanin are increased. Cheng Yue by fermenting Hericium erinaceus and zein powder, the antioxidant activity of the fermentation product is found to be obviously improved.

Hericium erinaceus solid fermentation process mimics the living conditions of many higher filamentous fungi, in which Hericium erinaceus can enhance the pharmacological activity of the fermentation product by changing the composition structure of the active substance. Compared with fungus spores produced by liquid fermentation, the biological enzymes, fungus spores and metabolites under the culture condition of solid fermentation have stronger environment adaptability. Previous researches show that the hericium erinaceus has higher spore stability and higher drying resistance after solid fermentation, and has higher germination rate in a longer time after freeze-drying.

Ginsenoside such as Rb with high content in Ginseng radix ₁ ，Rb ₂ Rc, rd, re and Rg ₁ Etc. Rare ginsenoside such as F ₁ 、F ₂ 、Rg ₃ 、Rh ₁ 、Rh ₂ CK, CY, CMC, etc., are low in the natural ginseng, but the pharmacological activity is often better. Since rare ginsenosides have the same parent structure as high-content saponins except for the number of sugar residues, rare ginsenosides can be prepared by hydrolyzing sugar residues in high-content saponins. Common methods include acid hydrolysis, high temperature and pressure, microbial conversion, and enzymatic conversion. Acid hydrolysis and high temperature and high pressure chemical methodThe disadvantages of severe reaction conditions, low conversion efficiency, more byproducts, difficult separation and purification and the like limit the development and application of the catalyst. The bioconversion method has a certain achievement in the field at home and abroad because of mild reaction conditions, high conversion efficiency and good specificity. Bioconversion generally includes microbial conversion and enzymatic conversion.

The microorganisms currently mainly used for ginsenoside conversion are as follows:

1. human intestinal bacteria, including polytype bacillus, bifidobacterium, clostridium, lactobacillus, etc., are receiving extensive attention from researchers in degrading ginsenoside, because they can metabolize oral ginsenoside and can be safely used in foods. These microorganisms can grow in an anaerobic environment using ginsenoside as a carbon source. However, the use of intestinal bacteria to transform ginsenoside has the problems of high cost of culture medium, low yield and the like.

2. Microorganisms isolated from ginseng planting soil include Curvularia lunata, aspergillus rhizogenes, absidia lanuginosa, fusarium saccharum, acremonium erectum, paecilomyces, etc., and bacteria including Bacillus megaterium, sphingomonas, acidocella, sphaerocella, etc., which are used for conversion of ginsenoside. Compared with intestinal bacteria, the soil microorganism can grow rapidly in a common culture medium, and has obvious economic advantages in the process of converting ginsenoside. However, soil microorganisms must be identified as safe to be used in the food industry. Although non-pathogenic microorganisms are applicable to the food industry, the microbial transformation method still has the disadvantages of poor selectivity, low yield and the like, and enzymes secreted by microorganisms and involved in degradation are difficult to determine.

In addition, the traditional Chinese medicines of red yeast, phellinus linteus, lactobacillus plantarum, saccharomycetes and the like are used for fermentation conversion, at present, bacteria, saccharomycetes and mould are mainly used for biological conversion of ginsenoside, and no research on conversion of rare ginsenoside by co-fermentation of hericium erinaceus strains and ginseng by using a bidirectional solid fermentation technology is available.

Disclosure of Invention

In view of this, the present application provides a Hericium erinaceus strain and a method for culturing the same, a Hericium erinaceus-ginseng bidirectional solid fermentation method, and a method for efficiently converting rare ginsenosides. The Hericium erinaceus strain can be used for efficiently converting rare ginsenoside in ginseng.

In order to achieve the above object, the present application provides the following technical solutions:

the application provides a hericium erinaceus strain, which has a preservation number of CGMCC No.22450.

The application also provides a culture method of the hericium erinaceus strain, which comprises the following steps:

resuscitating the hericium erinaceus strain, and inoculating the hericium erinaceus strain to a slant culture medium for slant culture;

inoculating the Hericium erinaceus strain subjected to slant culture into a primary liquid culture medium for primary seed culture;

inoculating the Hericium erinaceus strain after primary seed culture into a secondary liquid culture medium for secondary seed culture.

Preferably, the slant medium is PDA solid medium.

Preferably, the temperature of the slant culture is 24-28 ℃ and the time is 5-20 hours.

In the specific example provided by the application, the temperature of the slant culture is 26 ℃.

Preferably, the primary liquid medium has the formula: 10-30 g of glucose, 5-15 g of peptone and KH ₂ PO ₄ 1～5g，MgSO ₄ ·7H ₂ 0.5-1.5 g of O and 1L of water;

preferably, the conditions for primary seed culture are: culturing at 24-28 deg.c and 150-200 rpm/min in dark condition for 10-20 days.

In the specific embodiment provided by the application, the formula of the primary liquid culture medium is as follows: glucose 20g, peptone 10g, KH ₂ PO ₄ 2g，MgSO ₄ ·7H ₂ O1 g, water 1L.

In the specific embodiment provided by the application, the conditions for primary seed culture are as follows: the cells were cultured at 26℃for 15 days under 160rpm/min and in dark conditions.

Preferably, the second stageThe formula of the liquid culture medium is as follows: 20-30 g of glucose, 0.1-0.5 g of peptone, 0.1-0.5 g of yeast powder and KH ₂ PO ₄ 2～8g，MgSO ₄ ·7H ₂ 0.5-1.5 g of O and 1L of water;

preferably, the temperature of the secondary seed culture is 24-28 ℃, 150-200 rpm/min, and the secondary seed culture is performed in dark condition for 5-10 days.

Preferably, the Hericium erinaceus strain after primary seed culture has an inoculum size of 1 (10-30) (V/V).

In the specific embodiment provided by the application, the inoculation amount of the hericium erinaceus strain after primary seed culture is 1:20 (V/V).

In the specific embodiment provided by the application, the formula of the secondary liquid culture medium is as follows: glucose 22g, peptone 0.2g, yeast powder 0.2g, KH ₂ PO ₄ 5g，MgSO ₄ ·7H ₂ O1 g, water 1L;

in a specific embodiment provided by the application, the conditions for the secondary seed culture are: the cells were incubated at 26℃for 7 days under 160rpm/min and in the dark.

The application also provides a two-way solid fermentation method of the hericium erinaceus-ginseng, which comprises the following steps:

mixing Ginseng radix powder with water, and sterilizing to obtain Ginseng radix matrix;

inoculating Hericium erinaceus strain into ginseng medicinal material matrix, and fermenting and culturing.

Preferably, the mass percentage of water and ginseng powder is 30% -50%.

In the specific embodiment provided by the application, the mass percentage of water to ginseng powder is 40%.

Preferably, the fineness of the ginseng powder is 10 to 20 mesh.

Preferably, the sterilization is high temperature autoclaving and/or ultraviolet sterilization.

Preferably, the inoculation amount of the hericium erinaceus strain is 10% -30% (W/V) of the secondary hericium erinaceus seed culture solution.

In the specific embodiment provided by the application, the inoculation amount of the hericium erinaceus strain is 20% (W/V) of the secondary hericium erinaceus seed culture solution.

Preferably, the conditions of the fermentation culture are: the temperature is 23-28 ℃ and the time is 30-50 days.

The obtained co-fermented product (Ginseng radix medicinal fungus) can be made into products (medicine, health product, functional food, food) with similar effects to Ginseng radix and Hericium Erinaceus, such as tablet, granule, effervescent tablet, pill, and oral liquid.

The application also provides the fungus prepared by the hericium erinaceus-ginseng bidirectional solid fermentation method.

The application also provides a food, which comprises the mycoplasm and auxiliary materials acceptable in food science.

The application also provides a method for efficiently converting rare ginsenoside Rg ₃ And Rh ₁ Comprises the following steps:

mixing Ginseng radix powder with water, and sterilizing to obtain Ginseng radix matrix;

inoculating Hericium Erinaceus strain into Ginseng radix matrix, fermenting, culturing, and purifying to obtain Rg ₃ And Rh ₁ 。

The application provides a hericium erinaceus strain and a culture method thereof, a hericium erinaceus-ginseng bidirectional solid fermentation method and a method for efficiently converting rare ginsenoside. The preservation number of the hericium erinaceus strain is CGMCC No.22450. The application has the following advantages:

1. hericium erinaceus is a traditional fungus used as both medicine and food in China, has the functions of benefiting five viscera, strengthening spleen and benefiting stomach, and has good safety and efficacy as food and medicine.

2. The application utilizes hericium erinaceus and ginseng which is 4 years old to carry out bidirectional solid fermentation for the first time, the contents of rare ginsenoside Rg3 and Rh1 are improved, and the research has not been reported yet.

3. The process can efficiently convert rare ginsenoside Rg ₃ And Rh ₁ 。

Description of biological preservation

CCUCM-HE001, class naming: hericium erinaceus (Hericium erinaceus) was preserved in China general microbiological culture Collection center (CGMCC) with a collection number of CGMCC No.22450 at 6 and 10 days of 2021, and the collection address is North Chen Xiu Lu No. 1 and 3 of the Korean area of Beijing city.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

FIG. 1 bacterial colony morphology of strain CCUCM-HE-001;

FIG. 2 bacterial strain CCUCM-HE-001 hypha morphology;

FIG. 3 ITS phylogenetic tree of strain CCUCM-HE 001;

FIG. 4 comparison of diol and oleanolic acid type ginsenoside content; and (3) injection: * Representing the very significant difference compared to day 0 (P < 0.001); # # represents that the difference was very significant (P < 0.001) for 30 days of fermentation compared to 40 days;

FIG. 5 comparison of triol type ginsenoside content; and (3) injection: * Representing the very significant difference compared to day 0 (P < 0.001); * Represents significant differences compared to day 0 (P < 0.005); the # # represents that the difference was very significant (P < 0.001) between 30 days of fermentation versus 40 days.

Detailed Description

The application discloses a hericium erinaceus strain and a culture method thereof as well as a hericium erinaceus-ginseng bidirectional solid fermentation method, and a person skilled in the art can properly improve technological parameters by referring to the content of the hericium erinaceus strain. It is expressly noted that all such similar substitutions and modifications will be apparent to those skilled in the art, and are deemed to be included in the present application. While the methods and applications of this application have been described in terms of preferred embodiments, it will be apparent to those skilled in the relevant art that variations and modifications can be made in the methods and applications described herein, and in the practice and application of the techniques of this application, without departing from the spirit or scope of the application.

The culture medium, the reagent, etc. used in the present application are commercially available.

The application is further illustrated by the following examples:

example 1 identification of Hericium erinaceus strains

1. Hericium erinaceus strain culture and strain morphology identification

The strain CCUCM-HE001 is inoculated on a PDA flat-plate culture medium, and is cultured for about 10 days at the constant temperature of 28 ℃, the colony growth condition is observed, and the microscopic morphological classification and identification are carried out according to the characteristics of fungus colony color, mycelium growth condition, spore morphology and the like by utilizing a solid culture medium slide method. The strain is cultivated by using PDA culture medium, the colony is round, the edge is irregular, the mycelium is white villus, the mycelium is spread radially from the inoculation point to the periphery, the mycelium grows slowly in the early stage, more mycelium can be produced in the later stage, and the culture medium becomes brown yellow (figure 1). The hyphae were thicker, there was no gap, and the spores were round (FIG. 2).

2 molecular biological identification

The sequence is analyzed for homology and phylogenetic tree is constructed, and the sequencing result and phylogenetic tree result are shown below. The ITS region sequence length of the genomic DNA of the strain CCUCM-HE001 is 606bp, and the sequence similarity of the strain CCUCM-HE-001 and hericium erinaceus (Hericium erinaceum) is over 99% according to the online BLAST comparison result of the GenBank database in NCBI. And selecting a sequence with larger similarity with the strain to construct a phylogenetic tree, and further determining the species relationship of the strain. The method comprises the steps of taking the Tremella gracilis (Mycoleptodonoides aitchisonii) as an exogenous strain, comparing the strain sequences in pairs by a neighbor-training method, calculating the evolution or genetic relationship in the middle of the sequences, and constructing a phylogenetic tree shown in figure 3. The phylogenetic tree research result constructed by ITS sequence comparison analysis shows that the homology relationship between the strain CCUCM-HE001 and the hericium erinaceus (Hericium erinaceum) is higher, the relationship is closer, and the strain CCUCM-HE001 belongs to the hericium erinaceus.

Example 2 Hericium erinaceus-ginseng bidirectional solid fermentation technique

1. Slant culture of Hericium erinaceus

Resuscitates Hericium erinaceus strain stored in a refrigerator at 4deg.C, transfers to a newly prepared PDA solid culture medium under aseptic condition, cultures for 7 days in a constant temperature incubator at 26deg.C, passges again, repeats the above steps, and observes that Hericium erinaceus mycelium grows and spreads over the whole culture medium surface, thus achieving liquid culture.

2. Preparation of primary and secondary hericium erinaceus liquid strain

Inoculating the above Hericium Erinaceus solid culture into primary liquid culture medium (glucose 20g, peptone 10g, KH) ₂ PO ₄ 2g，MgSO ₄ ·7H ₂ O1 g, distilled water 1L), culturing at 26deg.C under 160rpm/min in darkness for 15 days, transferring the primary liquid strain to Hericium Erinaceus secondary liquid culture medium (glucose 22g, peptone 0.2g, yeast powder 0.2g, KH) at ratio of 1:20 (V/V) ₂ PO ₄ 5g，MgSO ₄ ·7H ₂ O1 g, distilled water 1L), for 7 days under the above conditions. When the secondary shake flask is observed to be full of light yellow fungus balls with uniform morphology, the fermentation is stopped.

Example 3 preparation of Hericium erinaceus-Ginseng radix bidirectional solid fermentation mycoplasm

Reference (Chen Tianli. Preparation process of compound ginseng grass mycoplasm granule and antineoplastic activity research [ D ] Changchun traditional Chinese medicine university, 2019; tan Yanqi. Research of influence of Cordyceps militaris solid fermentation condition on main active ingredient content [ D ] Hunan agricultural university, 2013.) is provided, and ginseng and Hericium erinaceus are subjected to bidirectional solid fermentation. Pulverizing Ginseng radix, and sieving with 16 mesh pharmacopoeia sieve to obtain Ginseng radix powder with uniform particle size. Weighing 30g of the ginseng powder, placing the ginseng powder into a 200mL culture flask, adding 40% distilled water as an initial water adding amount, uniformly mixing the water and the ginseng powder, placing the mixture into the culture flask, and sterilizing at 121 ℃ for two times for 30 minutes each time. Transferring sterilized matrix of Ginseng radix into aseptic condition, cooling, shaking to loosen matrix, and sterilizing under ultraviolet lamp for 30 min. The method is characterized in that a 20% (W/V) secondary hericium erinaceus seed culture solution is inoculated into a ginseng solid culture medium to serve as an experimental group, and a ginseng solid culture medium which is not inoculated with the secondary hericium erinaceus seed culture solution serves as a control group. When the whole culture bottle is fully filled with the hericium erinaceus mycelium and an obvious bacterial bud structure is formed, the fermentation is ended (30 days), and then the fermentation is continued for 10 days. Taking out 3 bottles of samples of the experimental group and the sample group every 3 days, respectively, drying at 40 ℃, crushing, sieving with a No. 3 sieve, and sealing and preserving in a dark place.

Example 4UPLC-QQQ-MS/MS technology analysis and monitoring of 13 ginsenosides content changes in Hericium erinaceus-ginseng mycoplasm

1. Preparation of control solution

Reference substance Rb of ginsenoside is precisely weighed ₁ 、Rb ₂ 、Rc、Rd、Re、Rf、Rg ₁ 、Rg ₂ 、Rg ₃ 、F ₂ 、F ₃ 、Rh ₁ And dissolving the Ro reference substance with chromatographic methanol to obtain mixed reference substance solution, shaking, and filtering with 0.22 μm organic filter membrane. And (5) storing the mixed reference substance solution in a refrigerator at the temperature of 4 ℃ for standby.

2. Preparation of test solutions

According to the method in Chinese pharmacopoeia, accurately weighing 1.0g of mycoplasm, wrapping the mycoplasm with filter paper, placing the packed mycoplasm in a Soxhlet extractor, adding chloroform, heating and refluxing for 3 hours, removing the chloroform liquid, taking out a residue bag, volatilizing a solvent, transferring the filter paper bag into a 100mL conical flask with a plug, adding 50mL of water saturated n-butanol, standing by a sealing plug for overnight, performing ultrasonic treatment (with the power of 250W and the frequency of 50 kHz) for 30min, filtering, discarding the primary filtrate, accurately measuring 25mL of the secondary filtrate, evaporating the secondary filtrate in an evaporation dish, dissolving residues in methanol, transferring the residues into a 5mL volumetric flask, adding methanol for dilution to a scale, shaking, passing through an organic filter membrane of 0.22 mu m, and storing in a refrigerator at the temperature of 4 ℃ for later use.

3. Liquid chromatography separation conditions

Thermo C ₁₈ Chromatographic column (50 mm. Times.3 mm,1.7 μm) with mobile phase 0.1% formic acid (A) -acetonitrile (B), gradient elution: 0-5 min,19% B; 5-29 min, 19-25% of B; 29-72 min, 25-40% of B; 72-77 min, 40-90% of B; 77-80 min,90% of B; 80-83 min, 90-19% B; 83-88 min,19% of B; the flow rate is 0.2mL/min, the column temperature is 35 ℃, the temperature of a sample chamber is 4 ℃, and the sample injection amount is 5 mu L.

4. Mass spectrum detection conditions

Ionization is carried out by adopting an electrospray mode, and full scanning detection is carried out by adopting an electrospray ion source (ESI); the mass scanning range m/z is 100-1500; spray voltage: 2500V; sheath air pressure: 35arb; auxiliary gas pressure 10arb; the temperature of the transmission capillary is 350 ℃; mist temperature: 300 ℃.

Test example 1 Hericium erinaceus-ginseng mycoplasm saponin content determination

The method of example 4 was used to determine the ginsenoside content of the fermentation broths of example 3 at different fermentation periods, the peak area was recorded, and 13 kinds of saponin contents were calculated according to the corresponding linear regression equation.

The content of saponins in the bacterial mass at different fermentation times was measured, and the measurement results are shown in fig. 4 and 5. Through the results, the content of the ginsenoside is increased and decreased to different degrees after the ginseng medicinal material is subjected to bidirectional fermentation. Rare saponins Rg when the mycoplasm is fermented to 30 th day compared with 0 th day ₃ 41.07% increase, 64.18% increase in oleanolic acid type saponin Ro content, rare saponin Rh ₁ The increase was 63.57%.

The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application, which are intended to be comprehended within the scope of the present application.

Claims (4)

1. Application of Hericium erinaceus (Hericium erinaceus) strain in conversion of ginsenoside;

the preservation number of the hericium erinaceus (Hericium erinaceus) strain is CGMCC No.22450.

2. The use of claim 1, wherein the ginsenoside comprises one or more of Rg3, rh1, rd, ro, rg2, rf, or F3.

3. The medicine is characterized by comprising mycoplasm and pharmaceutically acceptable auxiliary materials;

the preparation method of the mycoplasm comprises the following steps:

mixing Ginseng radix powder with water, and sterilizing to obtain Ginseng radix matrix;

inoculating Hericium erinaceus (Hericium erinaceus) strain with preservation number of CGMCC No.22450 to the ginseng medicinal material matrix, and fermenting and culturing to obtain the mycoplasm.

4. A method for efficiently converting ginsenoside Rd, ro, rg2, rf and/or F3, comprising the steps of:

mixing Ginseng radix powder with water, and sterilizing to obtain Ginseng radix matrix;

inoculating Hericium erinaceus (Hericium erinaceus) strain with the preservation number of CGMCC No.22450 to the ginseng medicinal material matrix, fermenting, culturing, and purifying to obtain Rd, ro, rg2, rf and/or F3.