摘要
优选了甘草中甘草酸的提取条件,建立了紫外分光光度法法测定甘草酸含量,在单因素试验基础上,以甘草酸收率为指标,按正交表L9(34)设计试验,优化溶剂浓度、提取次数、固液比、微波时间4个因素。最佳提取工艺为:溶剂浓度为0.5%,提取次数为2次,固液配比1:15,微波的时间15min。该优选提取工艺合理可行,与传统工艺相比,具有省时、省能源等特点。
To optimize the extraction process of glyeyrrhizic acid in glycyrrhiza uralemis fisch liquid, ultraviolet spec-trophotometry was applied to determine the content of glyeyrrhizic acid , the test was designed according to L9（3^4） of or-thogonal test on the basis of single factor experiment and taking the glyeyrrhizic acid yield as the index, the solvent concentration, the ratio of solid and liquid , the microwave time were optimized. The best extraction condition was gained ： the solvent concentration was 0.5% , the solid to liquid ratio was 1：12, the microwave time was 15 min. The optimized extraction process was reasonable and feasible. Compared with traditional technology, it could saved time and energy.
出处
《广州化工》
CAS
2009年第7期94-95,126,共3页
GuangZhou Chemical Industry
关键词
甘草
甘草酸
正交试验
微波辅助提取
glycyrrhiza
glyeyrrhizie acid
thogonal test
microwave - assisted extraction
