鲜龙牙百合淀粉的提取工艺研究  

Extraction of Strach from Fresh Longya Lillium

作　　者：王倩[1,2] 张鹏超[1,2] 余倩莎 廖传荣 彭国平[1,2] 

机构地区：[1]湖南农业大学生物科学技术学院,湖南长沙410128 [2]道地药用植物规范化栽培与综合开发湖南省工程实验室,湖南长沙410128

出　　处：《化学与生物工程》2016年第3期33-35,共3页Chemistry & Bioengineering

基　　金：湖南省教育厅项目[湘教厅(2013)223号168];湖南农业大学生物科学技术学院"大学生创新性研究项目"(生科院[2014]12号);湖南农业大学大学生创新性实验计划项目(XCX1508);2015年大学生科技创新基金项目(湘农团字[2015]505)

摘　　要：分别采用醇沉水洗法和水提沉淀法提取鲜龙牙百合淀粉,以淀粉提取率为指标,考察了料液比、沉淀时间和乙醇浓度等因素对提取效果的影响。确定了醇沉水洗法提取鲜龙牙百合淀粉的最佳条件为:沉淀时间12h、乙醇浓度60%、料液比2∶10(g∶mL);水提沉淀法提取鲜龙牙百合淀粉的最佳条件为:沉淀时间90min、料液比2∶8(g∶mL)。其中水提沉淀法淀粉提取率相对较高。Starchs were extracted from fresh Longya lillium by alcohol precipitation water washing method or water extract precipitation method.Using the extraction rate of starch as an index,the effects of solid-liquid ratio,precipitation time and ethanol concentration on extraction efficiency were investigated.Results showed that,the optimal extraction conditions of alcohol precipitation water washing method were as follows：precipitation time of 12 h,ethanol concentration of 60%,solid-liquid ratio of 2∶10（g∶mL）,and the optimal extraction conditions of water extract precipitation method were as follows：precipitation time of 90 min,solid-liquid ratio of 2∶8（g∶mL）.The extraction rate of starch for the water extract precipitation method was relatively higher than that of the alcohol precipitation water washing method.

关 键 词：龙牙百合 淀粉 提取 

分 类 号：TS234[轻工技术与工程—粮食、油脂及植物蛋白工程]