食品与发酵工业2009，Vol.35Issue(11)：140-143,4.
火龙果茎多糖的提取及结构鉴定
Polysaccharide Extraction from the Stem of Pitaya by Microwave-assisted Extraction and Its Structure Characterization
摘要
Abstract
In this paper, polysaccharide was extracted from the stem of pitaya by three different methods: the hot-water, enzyme- assisted and microwave-assisted methods. The microwave-assited extraction was proved to be the best by general evaluation. The results showed that the order of main factors affecting the yield of polysaccharides in the process of microwave-assisted extraction was: time ＞ microwave power ＞ temperature. The optimal technological conditions were: extraction time 10min, extraction temperature 80℃ and the microwave power 200W. Using the optimal technological conditions, the yield of SPP was 1. 42 %. After purifying, the yield of SPPS was 0. 74 %. SPPS was analyzed by IR, MALDI-TOF-MS and element analysis technique. The extraction was a polysaccharide mixture and the molecular weight was about 3 900 to 4 300u.关键词
火龙果茎/多糖/提取Key words
stem of pitaya/ polysaccharide/ extract分类
轻工纺织引用本文复制引用
何聪芬,李鹏,赵进,刘家熙,董银卯..火龙果茎多糖的提取及结构鉴定[J].食品与发酵工业,2009,35(11):140-143,4.基金项目
国家"863"资助项目(No.2007AA100404) （No.2007AA100404）
