Application of Ultrasonic Technique for Extracting Polysaccharide from Radix Rehmanniae Preparata

Abstract

Abstract: An ultrasonic method for the extraction of polysaccharide from Radix Rehmanniae Preparata was investigated and optimized. The effects of five variables on extraction efficiency of polysaccharide polyses were studied. The optimum extraction conditions were:the particle of dried Radix Rehmannia Preparata 40 mesh size;ultrasonic frequency 40 kHz;ratio of sample to solvent 1:56(m/V);extraction time 3.1 min and extraction temperature 64.5 ℃. The reproducibility of the extraction method was good.

Key words: Rehmannia glutinosa polyses(RGP), ultrasonic, ultrasonic extraction, extraction rate

CHEN Chuan-Fu, ZHANG Xiao-Wei, ZHANG Pei-Zheng. Application of Ultrasonic Technique for Extracting Polysaccharide from Radix Rehmanniae Preparata[J]. FOOD SCIENCE, 2008, 29(2): 184-187.

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Application of Ultrasonic Technique for Extracting Polysaccharide from Radix Rehmanniae Preparata

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