Title: Microwave Extraction Technology of Oleanolic Acid from Jujube
Abstract: The oleanolic acid was extracted from jujube by microwave method.Effects of extraction solvent,volume fraction of ethanol,ratio of material to solvent,extraction temperature,microwave power and microwave time on oleanolic acid yield were investigated by single factor and orthogonal tests.The results showed that the optimum extraction solvent was ethanol.The optimal extraction conditions were as followed: volume fraction of ethanol 90%,ratio of material to solvent 20:1,extraction temperature 80℃,microwave power 200W and microwave time 120s.Under the optimum parameters,the extraction yield reached up to 2.4029 mg/g.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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