不同纯化工艺对葛根总黄酮质量的影响

目的 :系统考察葛根总黄酮的纯化工艺 ,为葛根总黄酮的分离纯化提供实验依据。方法 :采用D101、D201、AB -8型大孔吸附树脂吸附 ,聚酰胺吸附及水饱和正丁醇萃取5种方法对葛根总黄酮进行纯化 ,以总黄酮收率、纯度及总黄酮中各成分的保留情况为考察指标综合评价。结果 :5种方法制备的总黄酮的百分含量依次为 :89 4 %、83 6 %、91 0 %、96 0 %、82 9 % ,产品收率依次为 :79 3 %、64 2 %、88 0 %、55 7 %、77 2 %。结论 :5种纯化方法中 ,AB -8型树脂综合性能最好 ,适合葛根总黄酮的分离纯化

The Effect of Different Methods of Purification on the Quality of Total Flavones of Radix Puerariae

OBJECTIVE:To investigate the technique of purifying the total flavones of Radix Puerariae,so as to provide an experimental basis for extraction and purification of the flavones METHODS:Five purifying methods,including adsorption with macroreticular adsorption resin AB-8,D101,D201 and with polyamide,extration with n-butanol,were adopted,and the amount and purity of total flavones collected and preservation of the components of total flavones were compared RESULTS:By using the above-mentioned five methods,the percentages of the contents of total flavones were 89 4%,83 6%,91 0%,96 0% and 82 9% and the recoveries of products were 79 3%,64 2%,88 0%,55 7% and 77 2% respectively CONCLUSION:Among the five methods,adsorption with AB-8 macroreticular adsorption resin is the best,which may be used for purification of total flavones of Radix Puerariae