Title:
DENDROBIUM OFFICINALE ENDOPHYTIC FUNGI STRAIN AND EXTRACELLULAR POLYSACCHARIDE PRODUCED THEREBY AS WELL AS EXTRACTION METHOD AND APPLICATION OF EXTRACELLULAR POLYSACCHARIDE
Document Type and Number:
WIPO Patent Application WO/2019/000850
Kind Code:
A1
Abstract:
The present invention provides a dendrobium officinale endophytic fungi strain and an extracellular polysaccharide produced thereby as well as an extraction method and application of the extracellular polysaccharide. The extraction process for the extracellular polysaccharide comprises: activating a strain; culturing a seed liquid; fermenting and culturing; filtering the fermented liquid in vacuum; concentrating the filtered liquid in vacuum; carrying out alcohol precipitation on the concentrated liquid; precipitating and centrifuging; dialyzing after dissolving the precipitates with water; freezing and drying the dialyzed liquid in vacuum; and obtaining the extracellular polysaccharide. The dendrobium officinale endophytic fungi strain belongs to the fusarium solani, and the xtracellular polysaccharide produced thereby has an inhibition effect to Escherichia coli, staphylococcus aureus, salmonella, and bacillus subtilis.
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Inventors:
LOU WENYONG (CN)
ZENG YINGJIE (CN)
WANG HONGFENG (CN)
ZONG MINHUA (CN)
LIANG JING (CN)
ZENG YINGJIE (CN)
WANG HONGFENG (CN)
ZONG MINHUA (CN)
LIANG JING (CN)
Application Number:
PCT/CN2017/115762
Publication Date:
January 03, 2019
Filing Date:
December 13, 2017
Export Citation:
Assignee:
UNIV SOUTH CHINA TECH (CN)
International Classes:
C12N1/14; A01P1/00; A61K31/715; A61P31/04; C08B37/00; C12P19/04; C12R1/77
Foreign References:
| CN107245457A | 2017-10-13 | |||
| CN104450541A | 2015-03-25 | |||
| CN104630073A | 2015-05-20 | |||
| CN105886405A | 2016-08-24 |
Attorney, Agent or Firm:
YOGO PATENT & TRADEMARK AGENCY LIMITED COMPANY (CN)
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