检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]四川文理学院化学化工学院,四川达州635000 [2]特色植物开发研究四川省高校重点实验室,四川达州635000
出 处:《化学研究》2015年第2期166-169,共4页Chemical Research
基 金:四川省教育厅重点项目资助(13ZA0101);"特色植物开发研究"四川省高校重点实验室项目资助(sctz201301;sctz201305)
摘 要:采用超声波辅助法提取何首乌中蒽醌类物质.讨论了甲醇体积分数、提取时间、提取温度、料液比和提取功率5个因素对提取效率的影响;通过正交试验确定了何首乌中蒽醌类物质的最佳提取工艺条件,甲醇体积分数为80%,提取时间为1.0h,提取温度为45℃,料液比为1∶15(g∶mL),提取功率为700W.此条件下蒽醌类物质的最大提取率为1.472 9%.The total anthraquinones were extracted from polygonum multiflorum by ultrasonic method .The effects of five factors on the extraction ,including methanol concentration ,extrac‐ting times ,extracting temperature ,material/solvent ratio and extracting power were studied by single factor test .The optimal conditions of extraction were determined as follows :metha‐nol volume fraction was 80% ,extracting time was 1 0. h ,extracting temperature was 45 ℃ , material‐solvent ratio was 1∶15 (g∶mL) and extracting power was 700 W .Under these oper‐ation conditions ,the maximum rate of extraction of the total anthraquinones was 1 4.72 9% .
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.198