Microwave Extraction and Content Determination of Polysaccharides from Rubia cordifolia L.

doi:10.7506/spkx1002-6630-200916025

FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (16 ): 135-136.doi: 10.7506/spkx1002-6630-200916025

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Microwave Extraction and Content Determination of Polysaccharides from Rubia cordifolia L.

，XIANG Bin2

1. College of Biology and Environmental Sciences, Jishou University, Jishou 416000, China；
2. College of Resources and Planning Sciences, Jishou University, Zhangjiajie 427000, China

Received:2009-06-11 Online:2009-08-15 Published:2010-12-29
Contact: TIAN Chun-lian E-mail:tianchunlian1970@163.com

Abstract

Abstract:

The microwave extraction of polysaccharides from Rubia cordifolia L. was optimized to attain the maximum extraction yield by orthogonal array design, and the contents of polysaccharides in different parts of Rubia cordifolia L. were measured by anthrone-sulfuric acid method. The medium-fire microwave extraction for 60 s with the ratio of material to water of 1:40 led to the highest extraction yield of 10.20%. Old leaves of Rubia cordifolia L. had the highest content of polysaccharides of 13.34%, followed by old stems, 10.28%.

Key words: Rubia cordifolia L. polysaccharides, microwave extraction, anthrone-sulfuric acid method

CLC Number:

TS207.3

TIAN Chun-lian1，XIANG Bin2. Microwave Extraction and Content Determination of Polysaccharides from Rubia cordifolia L.[J]. FOOD SCIENCE, 2009, 30(16 ): 135-136.

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Microwave Extraction and Content Determination of Polysaccharides from Rubia cordifolia L.

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