杜仲素与杜仲总黄酮连续提取分离研究

A Study on the Extraction and Separation of Eucommin and Flavonoids from Eucommia ulmoides

通过对 7种大孔树脂的研究 ,筛选出适宜于连续提取分离杜仲素和杜仲总黄酮的树脂为 LY- 7,其对绿原酸和桃叶珊瑚甙的最大吸附容量分别为 1 0 .0 6、6.79mg/g,吸附时间为1 8h,洗脱剂浓度为 2 0 % ;杜仲素和杜仲总黄酮的得率分别为 7.44%和 2 .80 % ;产品杜仲素中绿原酸的含量为 1 5 .5 1 % ,桃叶珊瑚甙的含量为 1 1 .2 4 % ,另一产品杜仲总黄酮中黄酮的含量为 2 2 .41 %。

Through studying on seven resins, it is shown that LY 7 is the fit resin to extract and separate eucommin and flavonoids. It's parameters as the maximum absorption rate of chlorogenic acid and aucubin is 10.66 mg/g and 6.79 mg/g, absorption time:18 h, eluting solvent:20%. The yield of the total glycosides:7.44%,of the flavonids:2.80%.The contents of chlorogenic in the product:15.51%,acubin: 11.24 %,flavonoids:22.41%.