星点设计-响应面法优化大孔树脂纯化藤茶总黄酮的工艺
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篇名: | 星点设计-响应面法优化大孔树脂纯化藤茶总黄酮的工艺 |
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摘要: | 目的: 优化大孔树脂纯化藤茶总黄酮的工艺。方法:以载药量、解吸率、回收率、纯化率等为指标对纯化藤茶总黄酮的4种大孔树脂进行筛选;采用单因素试验和星点设计-响应面法优化纯化工艺中洗脱剂的质量分数、吸附时间、洗脱剂流量及其pH等因素的水平,并进行验证试验。结果:确定以D-101大孔树脂为纯化树脂;最优纯化工艺为上样液质量浓度2 mg(以浸膏质量计)/ml、 上样液体积1.1倍柱体积(BV)、洗脱剂乙醇质量分数86.0%、吸附时间36.7 min、洗脱剂流量3.81 BV/h、洗脱剂pH 7;总黄酮的质量分数从66.83%提高至验证试验中的85.00%(RSD=0.15%,n=3),且与预测值(85.08%)接近。结论:采用星点设计-响应面法优化的大孔树脂纯化藤茶总黄酮的工艺条件可行,且稳定性较好。 |
ABSTRACT: | OBJECTIVE: To optimize the purification technology of total flavones from Ampelopsis grossedentala with macroporous resins. METHODS: 4 kinds of macroporous resins for the purification of total flavones from A. grossedentala were screened by using drug-loading amount, desorption rate, recovery and purification rate as indicators. Single factor test and central composite design-response surface methodology were used to optimized eluant mass fraction, adsorption time, flow rate of eluant, eluant pH and other factors of purification technology, and validation test was also conducted. RESULTS: D-101 macroporous resin was the best. The optimal condition was as follows as the concentration of sample solution 2 mg (by extract weight)/ml, the volume of sample solution 1.1 BV, ethanol 86.0%, adsorption time 36.7 min, flow rate of eluant 3.81 BV/h, pH 7. In validation test, mass fraction of total flavones increased from 66.83% to 85.00% in validation test (RSD=0.15%, n=3), and were close to predicted value (85.08%). CONCLUSIONS: Central composite design-response surface methodology is feasible and stable for the optimization of purification technology of total flavones from A. grossedentala with macroporous resins. |
期刊: | 2016年第27卷第7期 |
作者: | 柳庆龙,李煌,林珠灿,徐伟,沙玫,陈阿虹,周厚荣 |
AUTHORS: | LIU Qinglong,LI Huang,LIN Zhucan,XU Wei,SHA Mei,CHEN Ahong,ZHOU Hourong |
关键字: | D-101树脂;纯化;藤茶;总黄酮;星点设计-响应面法 |
KEYWORDS: | D-101 macroporous resin; Purification; Ampelopsis grossedentata; Total flavonids; Central composite design-response surface methodology |
阅读数: | 254 次 |
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