Double-liquid-phase fermentation method of coupling in-situ extraction antrodia camphorate active product antrondin C

A two-liquid-phase, in-situ technology, applied in the field of fermentation engineering, can solve the problems of reducing the negative feedback inhibition of Antrodia camphorata physiologically active products, low yield of physiologically active products, and changing the permeability of cell membranes, so as to achieve good industrialization prospects and realize Large-scale industrial application, the effect of simple extraction and purification

Active Publication Date: 2014-04-02
JIANGNAN UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims at the problems of low output and few types of physiologically active products synthesized by conventional liquid fermentation of Antrodia camphorata, and provides a two-liquid phase coupling fermentation method for producing active products of Antrodia camphorata by coupling in-situ extraction and fermentation with surfactants. The active agent changes the permeability of the cell membrane, reduces the negative feedback inhibition effect of the physiologically active products of Antrodia camphorata, and can effectively increase the types and yields of physiologically active products of Antrodia camphorata. However, during the fermentation process, these products are difficult to dissolve in water, so The active product secreted from the cell and still attached to the surface of the fungus ball can be enriched into the extractant phase by extractant extraction, so as to realize the efficient synthesis and extraction of the active product of Antrodia camphorata in the same fermentation cycle. The active product in the extractant phase passes through Ethanol is extracted into the ethanol phase, which makes the extraction and purification of the physiologically active products of Antrodia camphorata easy, and the recovered extractant can be reused after distillation to remove residual ethanol, thereby reducing production costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The culture medium formula of the present embodiment is:

[0019] Slant medium: potato 200g / L, glucose 20g / L, magnesium sulfate 0.1g / L, potassium dihydrogen phosphate 0.5g / L, peptone 5g / L, agar 20g / L.

[0020] Liquid seed medium: glucose 20g / L, soybean powder 4g / L, corn steep liquor powder 2g / L, magnesium sulfate 0.1g / L, potassium dihydrogen phosphate 0.5g / L.

[0021] Liquid fermentation medium: glucose 30g / L, soybean powder 5g / L, corn steep liquor powder 4g / L, magnesium sulfate 0.1g / L, potassium dihydrogen phosphate 0.5g / L.

[0022] Transfer the strains of Antrodia camphorata to the slant medium for cultivation at a temperature of 30°C and cultivate for 1 week to obtain fresh Antrodia camphorata bacteria, wash the spores from the slope with a certain amount of sterile water to prepare a spore suspension , with an inoculation volume of 10% by volume fraction into a 500ml Erlenmeyer flask containing 100ml of liquid seed medium, placed in a constant temperature shaker at...

Embodiment 2

[0024] The same as the steps of the above-mentioned Example 1, the difference is: when the cells were cultured for 48 hours, the surfactant Span-80 with a volume fraction of 0.1% was added to the culture solution, and the fermentation was continued for 8 days, and the active product Antrodin C output It was 200mg / L, which was increased by 50% compared with the blank control group.

Embodiment 3

[0026] The same as the steps of the above-mentioned Example 1, the difference is: when the cells were cultured for 48 hours, the surfactant Span-80 with a volume fraction of 0.3% was added to the culture solution, and the fermentation was continued for 8 days, and the active product Antrodin C output It was 250mg / L, which increased by 90% compared with the blank control group.

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Abstract

The invention discloses a double-liquid-phase fermentation method of coupling in-situ extraction antrodia camphorate active product antrondin C. According to the method, different surfactants are added into a liquid culture medium for changing the permeability of an antrodia camphorate bacterial cell membrane, the negative feedback inhibition effect of the target product antrondin C synthesis is reduced, on the basis, different extracting agents are coupled for carrying out in-situ extraction double-liquid-phase fermentation, and active products which are secreted from cells and attached on the bacterial ball surface are extracted into the extracting agents, so the negative feedback inhibition intensity of the target product is reduced, the surfactant coupling in-situ extraction fermentation technology is adopted, the efficient synthesis and extraction of the antrodia camphorate active product can be realized in the same fermentation period, the yield of the antrodia camphorate active product antrondin C can be obviously improved, the active product in the extraction agents is extracted into ethanol phases through ethanol extraction agents, the post-processing process is simple, the extraction and the purification of the active product are convenient, and the production cost can be effectively reduced.

Description

technical field [0001] The invention relates to a method for fermenting Antrodin C, an active product of Antrodia camphorata, in particular combining liquid fermentation for regulating cell permeability with in-situ extraction to establish a suitable two-liquid phase coupled extraction and fermentation system, which belongs to the field of fermentation engineering. technical background [0002] Antrodia camphorata (Antrodia camphorata), also known as Antrodia camphorata and Red Antrodia camphorata, is an extremely precious edible and medicinal mushroom in the field of traditional Chinese medicine. camphor tree aroma. [0003] In the past few years, due to the wide range of pharmacological activities and low toxicity of Antrodia camphorata, it has gradually attracted international attention, and the natural products with medicinal effects extracted from it have also been valued by various scholars and industries. Many research institutes have devoted manpower and material re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12P17/10C07D207/46C12R1/645
Inventor 许赣荣张欢夏永军张薄博喻学淳
Owner JIANGNAN UNIV
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