FOOD SCIENCE ›› 2007, Vol. 28 ›› Issue (7): 91-96.

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Extraction Technology Optimization for Extra-cellular Polysaccharide(EPS) of Cordyceps brasiliensis

 YANG  Rong-Ling, CHEN  Wei-Dong, WU  Xiao-Yu, LIU  Xue-Ming   

  1. 1.Department of Bioengineering, Jiangxi Agricultural University, Nanchang 330045, China;2.Sericulture and Farm Produce Processing Research Institute, Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Food, Ministry of Agriculture, Guangdong Open Access Laboratory of Agricultural Product Processing, Guangzhou 510610, China
  • Online:2007-07-15 Published:2011-10-24

Abstract: The experiment studied the extraction technology of extra-cellular polysaccharide (EPS) of Cordyceps brasiliensis. Single factor experiment was used to choose every factor’s level, then the orthogonal revolving regression analysis method of Design-Expert software was used to analyze the data and determine the optimal extraction technology conditions for extracting EPS. The results showed that the optimal conditions for the extraction of EPS are: 5 times volume of ethanol, depositing 10 hoursat pH 7.0, and the yield of EPS reaches the maximal value 2.7734g/L.

Key words: Cordyceps brasiliensis, extra-cellular polysaccharide (EPS), extraction technology, optimization