超高压方法提取马齿苋多糖的工艺研究  

Extraction the polysaccharide from Portulaca oleracea L. by ultrahigh pressure

作　　者：徐鹤[1] 张海悦[1] 

机构地区：[1]长春工业大学化学与生命科学学院,长春130012

出　　处：《食品科技》2011年第2期148-153,共6页Food Science and Technology

摘　　要：采用超高压技术常温提取,通过响应曲面法优化设计,最终确定了马齿苋多糖的最佳提取工艺条件为液料比1:20(g/mL),提取时间5 min,提取压力300 MPa,此时马齿苋多糖的提取率高达22.21%。同时采用红外光谱和高效液相法进行多糖成分测定,结果表明马齿苋多糖中主要单糖为:半乳糖醛酸、葡萄糖、半乳糖及阿拉伯糖。The ultrahigh pressure extraction technology（UPE） of the polysaccharide from Portulaca oleracea L was studied.The test was plan with response surface methodology（RSM）.The best extraction conditions are determined as follow：ratio of the material-liquid 1：20（g/mL）,200 MPa holding 5 min.The yield of the polysaccharide is 22.21% at the optimum extraction condition.Using infrared spectroscopy and high-performance liquid chromatography measure the polysaccharide,the main polysaccharide as follows： galacturonic acid,glucose,galactose and arabinose.

关 键 词：马齿苋多糖 超高压 响应曲面法 多糖分析 

分 类 号：R284.2[医药卫生—中药学]