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当前位置: 首页 > 文章 > 响应面法优化超声辅助提取马钱子中生物碱的工艺研究 食品科学 2009,30 (16) 111-114
Position: Home > Articles > Ultrasonic-assisted Extraction of Alkaloids from Semen Strychni by Response Surface Analysis FOOD SCIENCE 2009,30 (16) 111-114

响应面法优化超声辅助提取马钱子中生物碱的工艺研究

作  者：
邹建国;徐小龙;刘燕燕;彭海龙;徐彪;罗平;肖鉴谋
单  位：
南昌大学环境与化学工程学院
关键词：
马钱子;生物碱;超声提取;响应面法
摘  要：
采用响应面法对超声波辅助提取马钱子中生物碱的工艺进行了优化,在单因素试验的基础上,选择提取溶剂中乙醇体积分数、超声功率、提取时间为随机因素,进行三因素三水平的Box-Behnken中心组合设计,采用响应面法(RSM)分析了3个因素对响应值的影响。结果表明,超声波法提取马钱子中生物碱的最佳工艺条件为:马钱子颗粒度为20～40目,溶剂中乙醇体积分数为32.3%,溶剂pH值为5,超声功率300W,提取时间为37min,液料比为10:1。在此条件下,士的宁、马钱子碱的提取量分别达到18.75、9.24mg/g,与理论预测值基本吻合,说明该优化方法可行。
译  名：
Ultrasonic-assisted Extraction of Alkaloids from Semen Strychni by Response Surface Analysis
作  者：
ZOU Jian-guo,XU Xiao-long,LIU Yan-yan,PENG Hai-long,XU Biao,LUO Ping,XIAO Jian-mou(School of Environmental and Chemical Engineering,Nanchang University,Nanchang 330031,China)
关键词：
Semen Strychni;alkaloids;ultrasonic-assisted extraction;response surface methodology
摘  要：
Response surface methodology(RSM) was applied to optimize the ultrasonic-assisted extraction conditions of alkaloids from Semen Strychni.Based on the signal factor test,ethanol concentration,ultrasonic power and extraction time were chosen as casual factors,and a three-factor and three-level Box-Behnken central composite design leading to a set of 15 combinations of these variables was performed to attain the highest weighed value of yields of strychnine and brucine(their weighed coefficients both were 0.5).The optimal ultrasonic-assisted extraction conditions were determined as follows:particle size of Semen Strychni 20-40 mesh,ethanol concentration 32.3%,pH 5,ultrasonic power 300 W,ultrasonic-assisted extraction time 37 min,and ratio of liquid to solid 10:1.Under these conditions,the yields of strychnine and brucine were 18.75 mg/g and 9.24 mg/g respectively,which were consistent with the predicted values.These results demonstrate the validity of this extraction process.

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