Study on Extraction of Water Soluble Polysaccharide from Brewer s Spent Grain

doi:10.7506/spkx1002-6630-200924007

FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (24 ): 47-50.doi: 10.7506/spkx1002-6630-200924007

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Study on Extraction of Water Soluble Polysaccharide from Brewer s Spent Grain

ZHU Jie1，LI Lin1，HE Yuan-zhe1，FU Quan-yi1，HUANG Ling-ling1，BIE Ping-ping1,2，LI Bing1,*

1. College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China；
2. Foshan Huahao Huafeng Starch Co. Ltd., Foshan 528000, China

Received:2009-07-01 Online:2009-12-15 Published:2010-12-29
Contact: LI Bing1,* E-mail:bli@scut.edu.cn

Abstract

Abstract:

Brewer s spent grain (BSG) contains about 28% (db) water soluble polysaccharide, which could be a good resource of the plant polysaccharide. The extraction of water soluble polysaccharide of BSG under ultrasonic assistance was carried out. The optimum extraction conditions were found at the ultrasonic power of 180 W, extraction temperature of around 70 ℃, 15 min of ultrasonic treatment time, and the ratio of liquid to solid of 25:1 (ml/g). Under this condition, the yield of polysaccharide was up to 5.79%. Though the preliminary purification, the water soluble polysaccharide from BSG reached 92.59%. The results revealed that the extraction of water soluble plant polysaccharide was efficiently enhanced by ultrasound assistance.

Key words: ultrasonic, brewer s spent grains, water soluble polysaccharide, extraction

CLC Number:

TS201.1

ZHU Jie1，LI Lin1，HE Yuan-zhe1，FU Quan-yi1，HUANG Ling-ling1，BIE Ping-ping1,2，LI Bing1,*. Study on Extraction of Water Soluble Polysaccharide from Brewer s Spent Grain[J]. FOOD SCIENCE, 2009, 30(24 ): 47-50.

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Study on Extraction of Water Soluble Polysaccharide from Brewer s Spent Grain

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