摘要
Abstract
The performance and separation characteristics of six macroporous resin for purification of aloesin had been evaluated, including HZ-801, HZ-806, HZ-818, HZ-841, HZ-830, HZ-816. The result indicated that HZ-830 offered higher adsorption and desorption capacities. Then static and dynamic adsorption test was performd on the HZ-830 to optimize the purification process of aloesin from aloe. The optimum conditions were as follow,the volume,concentration,flow rate of loading sample were 10 bed volume（BV）,0.5321mg/mL,2BV/h, respectively,at 25℃ desorption was performed successively with 6BV deionized water and 4BV 5% ethanol at eluting velocity of 3BV/h. After one run treatment,the content of aloesin in the product increased from 9.58% to 56.01% with a recovery of 75.9% ,then after a second treatment with the same process,the content was increased from 56.01% to 85.8% with a recovery of 66.5%. Finally,a high purity of aloesin product was obtained （purity ≥95%） after treating with crystallization.关键词
芦荟苦素/大孔吸附树脂/分离纯化Key words
aloesin/macroporous resin/separation and purification分类
轻工纺织
