Analysis of the Monosaccharide Composition of Polysaccharides from "Tangzao" Jujube Fruits,a Local Cultivar in Hunan, China
This study aimed to analyze the monosaccharide composition of five polysaccharides (DTA,DTB1,DTB2,DTB3,and DTC) extracted from "Tangzao" jujube fruits,a major local cultivar in Hunan,China.The polysaccharides were extracted from fruits of three-year-old jujube trees and analysis of the monosaccharide composition was performed by gas chromatography following derivatization with aldononitrile acetate.The results showed that the most predominant monosaccharides were glucose,xylitol,glucose,galactose,which accounted for 36.4％,19.4％ (as high as 36.4％ in DTC),18.5％,and 24.2％ of the total monosaccharides,respectively,followed by rhamnose,ribose,arabinoseand mannose,which accounted for 7.1％,6.5％,8.1％ and 7.9％ of the total sugars,respectively,and then fucose and xylose with relative contents of only 5.0％ and 3.4％,respectively (only 0.8％ fucose was contained in DTB1 and only 0.7％ xylose in DTB2).It can be seen that the monosaccharide composition of polysaccharides from "Tangzao" jujubes is quite different.
国家科技期刊平台
NSTL
万方数据
维普
