CO_2超临界萃取葡萄皮渣中白藜芦醇的研究  

Extraction of resveratrol from wine grape residues with supercritical carbon dioxide fluid

作　　者：张青松[1,2] 李胜[1,2] 方艳[1] 刘媛[1] 吴媛媛[1] 张真[1,2] 马绍英[1,2] 

机构地区：[1]甘肃农业大学生命科学技术学院,甘肃兰州730070 [2]兰州汇通生物科技有限公司,甘肃兰州730000

出　　处：《甘肃农业大学学报》2009年第6期128-131,141,共5页Journal of Gansu Agricultural University

基　　金：甘肃省科技支撑计划基金(0804NKCA081);科技部中小企业创业基金(06C26226201858);甘肃省科技攻关项目(2GS064-A41-002-09);甘肃省高校研究生导师项目(0602-01)

摘　　要：采用超临界CO2萃取技术,对酿酒后葡萄皮渣中萃取白藜芦醇的技术参数进行了研究.以筛选的7.5%乙醇为最佳夹带剂,通过温度、压力、时间的单因素试验和正交试验.研究了CO2超临界萃取的工艺条件,结果表明:萃取各因素效应从大到小的顺序为:压力>温度>时间,在38℃、13 MPa下萃取17 min效果最好,在此条件下白藜芦醇平均得率达0.087%.The technology was studied on extracting resveratrol from grape residues with supercritical carbon dioxide fluid extraction.Ethanol at 7.5 % was as the optimum cosolvent,and single-factor and orthogonal tests were conducted to optimize the extraction temperature,pressure and time.It was found that the action effect was followed as pressure＆gt; temperature＆gt; time.The most optimum extraction condition was 38 ℃,130 MPa for 17 min,and the average yield rate was reached 0.087 %.

关 键 词：葡萄皮渣 白藜芦醇 超临界CO2萃取 

分 类 号：R284[医药卫生—中药学]