CN113913359A - Solid culture medium for promoting growth of antrodia cinnamomea mycelia and synthesis of triterpenes - Google Patents

Solid culture medium for promoting growth of antrodia cinnamomea mycelia and synthesis of triterpenes Download PDF

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CN113913359A
CN113913359A CN202111366387.9A CN202111366387A CN113913359A CN 113913359 A CN113913359 A CN 113913359A CN 202111366387 A CN202111366387 A CN 202111366387A CN 113913359 A CN113913359 A CN 113913359A
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growth
nutans
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CN113913359B (en
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李晶
林冬梅
林占熺
张双双
刘朋虎
林兴生
罗海凌
林辉
刘艳玲
张煜隆
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Fujian Agriculture and Forestry University
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    • C12NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N1/00Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
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    • C12P33/00Preparation of steroids

Abstract

The invention discloses a solid culture medium capable of promoting growth of antrodia cinnamomea mycelia and synthesis of triterpenes, and belongs to the field of biotechnology. The solid culture medium contains glucose, peptone, maltose, yeast extract, potassium dihydrogen phosphate, magnesium sulfate heptahydrate, and vitamin B1And a Clinacanthus nutans leaching solution or a Clinacanthus nutans extract. The method has the characteristics that the antrodia cinnamomea mycelium has the rapid germination and growth, the triterpene content is 23.6 percent higher than that of the traditional culture medium, clinacanthus nutans can be easily obtained in China, the method is simple to prepare and high in repeatability, different types of culture media can be prepared according to actual production conditions by using the same raw material, and a large amount of antrodia cinnamomea mycelium can be provided for actual productionThe novel process of (1).

Description

Solid culture medium for promoting growth of antrodia cinnamomea mycelia and synthesis of triterpenes
Technical Field
The invention belongs to the field of biotechnology, and particularly relates to a solid culture medium capable of promoting growth of antrodia cinnamomea mycelia and synthesis of triterpenes.
Background
Antrodia camphorata (Antrodia camphorata)Antrodia cinnamomea) Is a rare medicinal fungus variety in Taiwan area of China, triterpenes are main functional components of the medicinal fungus, have a plurality of efficacies of protecting liver, detoxifying, resisting inflammation, resisting oxidation and the like, and research is carried out to the Cinnamomum kanehirae Hayata which is a two-stage Taiwan conservation tree species (Cinnamomum kanehirae Hayata, Cinnamomum kanehirae, and Cinnamomum kanehirae Hayae Hayata, and Cinnamomum kanehirae Hayata, which are secondary conservation trees in Taiwan to dateCinnamomum kanehirai) The Antrodia camphorata is the only host of Antrodia camphorata, and because the host is extremely small in the nature and the growth speed of the Antrodia camphorata is slow, the Antrodia camphorata is known as "ruby in forest". Clinacanthus nutans (A. nutans)Cymbopogon citratus(DC.) Stapf is a perennial dense-cluster aromatic herb of Gramineae and citronella, is widely planted in tropical regions, and is common in Guangdong, Fujian, Taiwan and the like in China. The stem and leaf can be used for extracting lemon essential oil for preparing perfume and soap, and can be eaten, and the tender stem and leaf is used as raw material for preparing curry flavoring; the medicine has the effects of dredging collaterals and dispelling pathogenic wind. Researches show that the mycelium of the antrodia camphorata can effectively replace fruiting bodies under partial conditions and has extremely similar health care functions, in order to solve the increasing demand of people on the antrodia camphorata, the method for screening the leaching solution of the clinacanthus nutans and the like as the culture medium can greatly and quickly promote the growth of the mycelium of the antrodia camphorata and the synthesis of the triterpene content, improve the content of effective components of the antrodia camphorata and simultaneously have correct guidance for the market development of the antrodia camphorataTherefore, the method can generate great economic and social benefits for the bacterial industry of China.
Disclosure of Invention
The invention aims to provide a solid culture medium for rapidly and efficiently promoting the growth of antrodia cinnamomea mycelia and the synthesis of triterpenes, and provides a scientific means for industrial production of antrodia cinnamomea mycelia and large accumulation of triterpenes.
In order to achieve the purpose, the invention adopts the following technical scheme:
a solid culture medium capable of promoting growth of antrodia camphorata mycelia and synthesis of triterpenes is prepared from glucose 2.5%, peptone 0.5%, maltose 0.3%, yeast extract 0.3%, potassium dihydrogen phosphate 0.1%, magnesium sulfate heptahydrate 0.1%, and vitamin B1Dissolving 0.1% and agar powder 1.5% in 1000 mL Clinacanthus nutans leaching solution, naturally adjusting pH, and sterilizing at 121 deg.C for 20 min.
The preparation method of the clinacanthus nutans leaching liquor comprises the following steps:
selecting fresh Clinacanthus nutans without plant diseases and insect pests, drying, crushing and screening by a 40-mesh sieve to obtain Clinacanthus nutans powder; decocting 50 g Clintonia nutans powder with 500-1000 mL of water at 70-90 deg.C for 30-60 min, filtering, and diluting the filtrate with water to 1000 mL to obtain Clintonia nutans leaching solution.
A solid culture medium capable of promoting growth of antrodia cinnamomea mycelia and synthesis of triterpenes is characterized in that: the formula of the culture medium comprises 2.5 percent of glucose, 0.5 percent of peptone, 0.3 percent of maltose, 0.3 percent of yeast extract, 0.1 percent of monopotassium phosphate, 0.1 percent of magnesium sulfate heptahydrate and vitamin B according to mass percentage1Dissolving 0.1% and 0.05% -0.25% of Clinacanthus nutans water extract in 1000 mL of water, sterilizing at 121 deg.C for 20 min under natural pH.
The preparation method of the clinacanthus nutans extract comprises the following steps:
selecting fresh Clinacanthus nutans without plant diseases and insect pests, crushing, drying, weighing and dissolving 20 g of Clinacanthus nutans in 1000 mL of water, heating in a water bath at 80-90 ℃, refluxing in vacuum for 3 h, filtering, concentrating the filtrate to 30 mL, freezing at-80 ℃, and drying in a vacuum drying oven or removing the solvent by adopting a spray drying mode to obtain a tan colloidal solid or a powdery solid, namely the Clinacanthus nutans water extract.
The solid culture medium is used for promoting the growth of antrodia camphorata mycelium and the synthesis of triterpene.
The method for culturing antrodia by the culture medium prepared by the invention comprises the following steps: culturing at 28 deg.C in dark for 14-28 days.
After the antrodia camphorata mycelia cultured by the prepared culture medium are inoculated and cultured for 2-3 days, the mycelia begin to germinate rapidly in large quantity, grow over all flat plates (the diameter is 10 cm) at 20-28 days, and the content of triterpenes in the antrodia camphorata mycelia can be up to 7.79 +/-0.13 mg/g measured by a vanillin-glacial acetic acid method.
The invention has the following remarkable advantages:
the antrodia camphorata is a rare medicinal fungus variety in Taiwan in China, and the artificial cultivation method comprises a basswood cultivation method, a solid cultivation method and a liquid fermentation method, but the method for cultivating the antrodia camphorata has high cost and long cultivation period, and the biomass of mycelium and the yield of intracellular triterpene obtained by cultivation are low. The Clinacanthus nutans is large in quantity, wide in source and low in price in China, and the Clinacanthus nutans leaching solution or Clinacanthus nutans extract is used for preparing the solid culture medium, so that germination and growth of Antrodia cinnamomea mycelia can be efficiently and quickly promoted, and the culture time is shortened by about 30% compared with that of a traditional culture medium; meanwhile, the solid culture medium prepared by the invention can also effectively promote the synthesis of antrodia camphorata triterpenes, so that the content of the triterpenes in the antrodia camphorata mycelia is as high as 7.79 +/-0.13 mg/g, which is 23.6% higher than that of the traditional culture medium. The facts show that the culture medium can replace the traditional culture medium, thereby solving the bottleneck in artificial production and cultivation of the antrodia camphorata and realizing the rapid industrialization of the antrodia camphorata mycelia.
Drawings
FIG. 1 shows the growth of Antrodia camphorata in example 1. In which, YDC is the solid medium for promoting the growth of antrodia cinnamomea mycelium and the synthesis of triterpene described in example 1, and CK is a control medium.
Detailed Description
In order to make the present invention more comprehensible, the technical solutions of the present invention are further described below with reference to specific embodiments, but the present invention is not limited thereto.
Example 1
Selecting fresh Clinacanthus nutans without plant diseases and insect pests, drying, crushing and screening by a 40-mesh sieve to obtain Clinacanthus nutans powder; decocting 50 g Clintonia nutans powder with 500-1000 mL of water at 70-90 deg.C for 30-60 min, filtering, and diluting the filtrate with water to 1000 mL to obtain Clintonia nutans leaching solution. The method comprises the following raw materials in percentage by mass: 2.5% glucose, 0.5% peptone, 0.3% maltose, 0.3% yeast extract, 0.1% monopotassium phosphate, 0.1% magnesium sulfate heptahydrate, 0.1% vitamin B1And 1.5% agar powder, dissolving in 1000 mL clinacanthus nutans leaching liquor, naturally adjusting pH, and sterilizing at 121 ℃ for 20 min to obtain the solid culture medium capable of promoting growth of antrodia cinnamomea mycelia and synthesis of triterpenes.
The formula of the reference culture medium comprises the following raw materials in percentage by mass: 2.5% glucose, 0.5% peptone, 0.3% maltose, 0.3% yeast extract, 0.1% monopotassium phosphate, 0.1% magnesium sulfate heptahydrate, 0.1% vitamin B1And 1.5% agar powder in 1000 mL water, with natural pH, and sterilizing at 121 deg.C for 20 min.
After the culture medium is cooled, the antrodia camphorata strain is inoculated. The culture method comprises the following steps: culturing at 28 deg.C in dark for 16-28 days. The growth of Antrodia camphorata is shown in figure 1.
According to measurement, the growth rate of antrodia camphorata mycelium is 1.13 +/-0.04 mm/d and the content of triterpene is 6.30 +/-0.10 mg/g under the culture of a control culture medium; and when the culture medium containing the clinacanthus nutans leaching liquor is cultured, the growth rate of the antrodia camphorata mycelium is 1.39 +/-0.03 mm/d, the content of the triterpene is 7.74 +/-0.11 mg/g, and the growth rate of the mycelium and the content of the triterpene are remarkably different from those of a control group (P < 0.05).
Example 2
Selecting fresh Clinacanthus nutans without plant diseases and insect pests, breaking, crushing, drying, weighing and dissolving 20 g of Clinacanthus nutans in 1000 mL of water, heating in a water bath at 90 ℃, refluxing in vacuum for 3 h, filtering, concentrating the filtrate to 30 mL, freezing at-80 ℃, and putting into a vacuum drying oven to obtain a tan colloidal solid, namely the Clinacanthus nutans water extract. The method comprises the following raw materials in percentage by mass: 2.5% glucose, 0.5% peptone, 0.3% maltose, 0.3% yeastExtract, 0.1% potassium dihydrogen phosphate, 0.1% magnesium sulfate heptahydrate, and 0.1% vitamin B1And dissolving the clinacanthus nutans extract in 1000 mL of water, performing natural pH, and sterilizing at 121 ℃ for 20 min to obtain the solid culture medium capable of promoting growth of antrodia cinnamomea mycelia and synthesis of triterpenes. Wherein the Clinacanthus nutans extract is 0.05%, 0.1%, 0.15%, 0.2%, 0.25% by weight respectively.
The formula of the reference culture medium comprises the following raw materials in percentage by mass: 2.5% glucose, 0.5% peptone, 0.3% maltose, 0.3% yeast extract, 0.1% monopotassium phosphate, 0.1% magnesium sulfate heptahydrate, 0.1% vitamin B1And 1.5% agar powder in 1000 mL water, with natural pH, and sterilizing at 121 deg.C for 20 min.
After the culture medium is cooled, the antrodia camphorata strain is inoculated. The culture method comprises the following steps: culturing at 28 deg.C in dark for 16-28 days. The growth of Antrodia camphorata is shown in Table 1.
According to measurement, the growth rate of antrodia camphorata mycelium is 1.13 +/-0.04 mm/d and the content of triterpene is 6.3 +/-0.10 mg/g under the culture of a control culture medium; and when the culture medium containing 0.2% of Clinacanthus nutans aqueous extract is cultured, the growth rate of the mycelium of the antrodia camphorata is 1.43 +/-0.05 mm/d, the content of the triterpene is 7.79 +/-0.13 mg/g, and the contents of the mycelium of the antrodia camphorata and the triterpene are remarkably different from those of a control group (P < 0.05).
TABLE 1 growth rates of Antrodia camphorata mycelia
Figure 516960DEST_PATH_IMAGE001
The facts show that the preparation of the solid culture mycelium of antrodia camphorata by using the Clinacanthus nutans water extract and the Clinacanthus nutans leaching solution can obviously shorten the culture time, improve the production efficiency in production and reduce the production cost.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.

Claims (6)

1. A triterpene compound capable of promoting growth of Antrodia Camphorata myceliumThe solid culture medium is characterized in that: the formula of the culture medium comprises 2.5 percent of glucose, 0.5 percent of peptone, 0.3 percent of maltose, 0.3 percent of yeast extract, 0.1 percent of monopotassium phosphate, 0.1 percent of magnesium sulfate heptahydrate and vitamin B according to mass percentage1Dissolving 0.1% and agar powder 1.5% in 1000 mL Clinacanthus nutans leaching solution, naturally adjusting pH, and sterilizing at 121 deg.C for 20 min.
2. The solid culture medium for promoting the growth of antrodia camphorata mycelium and the synthesis of triterpenes according to claim 1, wherein: the preparation method of the clinacanthus nutans leaching liquor comprises the following steps:
selecting fresh Clinacanthus nutans without plant diseases and insect pests, drying, crushing and screening by a 40-mesh sieve to obtain Clinacanthus nutans powder; decocting 50 g Clintonia nutans powder with 500-1000 mL of water at 70-90 deg.C for 30-60 min, filtering, and diluting the filtrate with water to 1000 mL to obtain Clintonia nutans leaching solution.
3. A solid culture medium capable of promoting growth of antrodia cinnamomea mycelia and synthesis of triterpenes is characterized in that: the formula of the culture medium comprises 2.5 percent of glucose, 0.5 percent of peptone, 0.3 percent of maltose, 0.3 percent of yeast extract, 0.1 percent of monopotassium phosphate, 0.1 percent of magnesium sulfate heptahydrate and vitamin B according to mass percentage1 Dissolving 0.1% and 0.05% -0.25% of Clinacanthus nutans extract in 1000 mL of water, sterilizing at 121 deg.C for 20 min under natural pH.
4. The solid culture medium for promoting the growth of Antrodia camphorata mycelium and the synthesis of triterpene according to claim 3, wherein: the preparation method of the clinacanthus nutans extract comprises the following steps:
selecting fresh Clinacanthus nutans without plant diseases and insect pests, crushing, drying, weighing and dissolving 20 g of Clinacanthus nutans in 1000 mL of water with 600-.
5. The use of the solid culture medium according to claim 1 for promoting the growth of Antrodia camphorata mycelium and the synthesis of triterpene.
6. The use of the solid medium according to claim 3 for promoting the growth of Antrodia camphorata mycelium and the synthesis of triterpene.
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104130948A (en) * 2014-07-11 2014-11-05 福建农林大学 Preparation method and application of Antrodia camphorate mycelium medium
CN105001009A (en) * 2015-08-13 2015-10-28 福建农林大学 Antrodia cinnamomea terpene-rich mycelium culture medium and application

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104130948A (en) * 2014-07-11 2014-11-05 福建农林大学 Preparation method and application of Antrodia camphorate mycelium medium
CN105001009A (en) * 2015-08-13 2015-10-28 福建农林大学 Antrodia cinnamomea terpene-rich mycelium culture medium and application

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
于群: "忧遁草活性成分的提取及其功能评价", 于群, no. 2018, pages 024 - 599 *
冯路瑶等: "不同中药提取物对牛樟芝生长和胞内三萜产物形成的影响", 中国食用菌, vol. 37, no. 2, pages 42 - 46 *

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