and method for preparing and use thereof

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United States of America Patent

PATENT NO 11473115
APP PUB NO 20220042058A1
SERIAL NO

17265097

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Abstract

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The invention discloses an exopolysaccharide from Rhodopseudomonas palustris and a method for preparing and use thereof, and the method for preparing comprises the steps of: 1) keeping a seed solution from Rhodopseudomonas palustris GJ-22 in a fermentation medium for fermentation culture to obtain a fermentation broth; 2) centrifuging the fermentation broth to take the supernatant, which is treated by alcohol precipitation after filtration, and then collecting the pellet from alcohol precipitation by centrifugation to obtain crude polysaccharide; 3) removing proteins from the rude polysaccharide using protease enzymolysis method and Sevag method, followed by dialysis treatment with distilled water to remove small molecules and organic solvent to obtain a polysaccharide sample; 4) purifying the polysaccharide sample through an anion exchange column and a molecular exclusion chromatography column obtain the exopolysaccharide from Rhodopseudomonas palustris.

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Patent Owner(s)

Patent OwnerAddress
GUANGZHOU MIQI CHEMICAL CO LTDROOM 1601 NO 49 REGGIE SECOND STREET HUANGPU DISTRICT GUANGZHOU CITY GUANGDONG PROVINCE 510000 GUANGZHOU CITY GUANGDONG PROVINCE 510000

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cheng, Ju'e Hunan, CN 1 0
Dai, Jianping Hunan, CN 2 0
Liu, Yong Hunan, CN 1235 24302
Su, Pin Hunan, CN 6 30
Yang, Haixing Jiangsu, CN 1 0
Zhai, Zhongying Hunan, CN 1 0
Zhang, Deyong Hunan, CN 9 98
Zhang, Zhuo Hunan, CN 145 724
Zhou, Bo Hunan, CN 217 1460

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