A kind of Yunzhi polysaccharide extract and its preparation method and application

A technology of versicolor polysaccharides and extracts, applied in the biological field, to achieve the effects of precise ingredients, shortened preparation cycle, and good solubility
CN104450826BActive Publication Date: 2017-11-17SOUTH CHINA NORMAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTH CHINA NORMAL UNIVERSITY
Publication Date
2017-11-17

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Abstract

The invention relates to the field of biotechnology, in particular to a polysaccharide extract from versicolor versicolor and its preparation method and application. In the present invention, after submerged fermentation is used to cultivate Yunzhi mycelium, the fermentation product is separated into mycelium and fermentation liquid, the mycelium is dried, pulverized, sieved, degreased and dried, then extracted with hot water and concentrated to obtain a concentrated extraction solution. ; after ultrafiltration to remove small molecular substances, the fermentation broth is concentrated to obtain an ultrafiltration concentrate. The ultrafiltration concentrate and the extraction concentrate are deproteinized, ethanol precipitated, hydrogen peroxide decolorized, dialyzed and finally vacuum freeze-dried to obtain the intracellular polysaccharide extract of Yunzhi and the extracellular polysaccharide extract of Yunzhi respectively. The preparation process of the invention is simple, can be mass-produced with high efficiency and high quality, the extract is non-toxic to human body, has good physiological effect of lowering blood fat, and can be used for developing blood fat lowering medicine or health food.
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Description

technical field

[0001] The invention belongs to the field of biotechnology, and in particular relates to a polysaccharide extract of versicolor versicolor and its preparation method and application. Background technique

[0002] Fermentation products are obtained by liquid submerged fermentation of edible and medicinal fungal mycelia, and the intracellular polysaccharides in the mycelium and the exopolysaccharides in the fermentation broth can generally be extracted separately.

[0003] Hu Chengxu et al. (2007) used response surface methodology to study the water extraction process of polysaccharides from Yunzhi mycelia, and obtained the optimal water extraction conditions: extraction temperature 85°C, extraction time 105min, liquid-solid ratio 27:1, Yunzhi The extraction rate of polysaccharide was 7.27%. Pan et al. (2010) studied the optimal process parameters of polysaccharides from versicolor versicolor fruiting bodies by ultrasonic-assisted extraction, and obtained the ...

Claims

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