Extraction Techniques of Extracellular Polysaccharide of Eurotium cristatum
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Abstract:
The Eurotium cristatum is the dominant germ in the production of Fuzhuan brick tea, contributing to the special quality of the tea. In this research, the Eurotium cristatum was separated from the Fuzhuan brick tea for submerged fermentation. Then the extracellular polysaccharides were separated after a 5-day liquid deep fermentation of the Eurotium cristatum. The results showed that the optimal ratio of condensed volume of fermentative liquor to the original, ethanol concentration and depositon time were 1:4, 95% and 10 h, respectively.
