FOOD SCIENCE ›› 2007, Vol. 28 ›› Issue (6): 153-155.

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Study on Extraction and Antioxidant Effects of Crude Alkai-soluble Tremella Polysaccharide

WU  Qiong, ZHENG  Cheng, NING  Zheng-Xiang, LIU  Ben-Guo, DONG  Hua-Qiang   

  1. 1.College of Light Industry and Food Technology, South China University of Technology, Guangzhou 510640, China; 2.School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510091, China; 3.Department of Food Science, Foshan University, Foshan 528231, China
  • Online:2007-06-15 Published:2011-12-31

Abstract: It’s mainly studied on extraction and antioxidant effects on the role of crude alkai-soluble tremella polysaccharide(CATP). The optimum extracting conditions of CATP were as follows: extraction time 3.56 h, NaOH concentration 0.76 mol/L, solvent/solid ratio 81.89. The antioxidant effects of CATP and TP(tremella polysaccharide) were studied by scavenging DPPH, hydroxyl and superoxide anion free radical. The results showed that CATP has better antioxidant capabilities than TP.

Key words: Tremella fuciformis Berk, CATP, extraction, free radical