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Contents of Total Gypenosides from Gynostemma pentaphyllum with Different Pre-treatments

ZHANG Tao1,ZHANG Yu-song2,CHENG Zu-xin1 (1.Agricultural Product Quality Institute, Fujian Agriculture and Forestry University, Fuzhou 350002, Fujian China; 2.Science and Technology Developing Corporation, Fujian Agriculture and Forestry University, Fuzhou 350002, Fujian China;)  
Ultrasonic extraction was used to extract the gypenosides from fresh leaves sample(F), fixed sample(X),baked sample(B), air-dried sample(A) and dry tea sample(D) of Gynostemma pentaphyllum. The results showed that the content of total gypenosides was XBFAD. It maybe that gypenosides decompounding level depends on glycosidase deactivation level. It would be paid attention to in production and experiment study.
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