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
作 者:马丽[1] 陈家仪[1] 陈稚[1] 梁巧文 曹骋[1] 曾元儿[1]
机构地区:[1]广州中医药大学,广州510006
出 处:《中国实验方剂学杂志》2014年第8期33-36,共4页Chinese Journal of Experimental Traditional Medical Formulae
基 金:广东省大学生创新实验项目(1057211030)
摘 要:目的:优选枳实总黄酮的大孔树脂纯化工艺。方法:选择吸附时间、乙醇体积分数、洗脱用量为自变量,总黄酮吸附-洗脱率为因变量,在单因素试验基础上,采用星点设计-响应面法优选大孔树脂纯化工艺。结果:选择AB-8型大孔树脂,最佳纯化工艺为上样液质量浓度3.5 g·L-1,pH 6.0,上样量0.6 BV,上样速率1 BV·h-1,水洗用量1 BV,洗脱速率2 BV·h-1,吸附时间77 min,乙醇体积分数88%,洗脱剂用量2.4 BV;枳实总黄酮吸附-洗脱率达93.0%,与预测值(92.4%)偏差较小。结论:采用星点设计-响应面法优选的大孔树脂纯化工艺条件稳定可行,预测性好。Objective:To optimize purification process of total flavonoids in Aurantii Fructus Immaturus by macroporous resin.Method:Independent variables were adsorption time,ethanol concentration and eluent volume,while dependent variables was adsorption-elution rate of total flavonoids,central composite designresponse surface methodology was adopted to optimize purification technology on the basis of single factor tests.Result:AB-8 macroporous resin was selected,optimum purification process were as follows:added 0.6 BV of sample solution with concentration of 3.5 g ·L-1 and pH 6.0,sample rate 1 BV ·h-1,adsorption time 77 min,water consumption 1 BV,elution rate of 2 BV ·h-1,eluted with 2.4 BV of 88% ethanol.Adsorption-elution rate of total flavonoids was up to 93.0%,which had a small deviation with the predicted value of 92.4%.Conclusion:Optimized purification technology was stable and feasible with high predictability.
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:18.226.166.121