铁棍山药粗多糖提取工艺条件研究  

Study on extraction process of crude polysaccharide from Tiegun yam

作　　者：杨君[1] 

机构地区：[1]河南工业大学化学化工学院,河南郑州450001

出　　处：《粮油食品科技》2014年第6期20-22,共3页Science and Technology of Cereals,Oils and Foods

摘　　要：以水为提取剂,采用水煮醇沉法提取铁棍山药的山药多糖,以水提温度、料液比、浸提时间及乙醇体积分数4个影响因素,研究单因素对粗多糖得率的影响,L9(34)正交试验的结果表明,提取的优化工艺条件为提取温度90℃,提取时间2.5 h,乙醇体积分数75%,料液比1∶6(W∶V),粗多糖得率为6.77%,其中对山药粗多糖提取得率影响最大的因素是提取温度。The yam polysaccharide was extracted from Tiegun yam （Dioscorea opposita Thunb.cv.Tiegun） by water -alcohol -precipitation method.The influence of the factors,extraction temperature,solid -liquid ratio,extraction time and ethanol concentration on the crude polysaccharide yield by single factor and orthogonal experiment L9 （3^4 ）was studied.The result showed that the optimal parameters were as follows：extraction temperature 90 ℃,extraction time 2.5 h,ethanol concentration 75% and solid -liq-uid ratio 1∶6（W∶V）.The crude polysaccharide yield was 6.77%.Among the factors the extraction tem-perature was the biggest one to affect the polysaccharide yield.

关 键 词：铁棍山药 粗多糖 提取工艺 

分 类 号：TS215[轻工技术与工程—粮食、油脂及植物蛋白工程]