油橄榄果渣中山楂酸和齐墩果酸的提取工艺

Extraction Technology of Maslinic Acid and Oleanolic Acid from Olea europare L.Pomace

以油橄榄果渣为原料,对其主要有效成分山楂酸(MA)和齐墩果酸(OA)的提取工艺进行研究。以MA、OA的提取率和浸膏得率为评价指标,采用正交实验优选油橄榄果渣中MA、OA的最佳提取工艺,得到的最佳条件为:以φ(CH3CH2OH)=90%的乙醇为提取剂,料液比〔即油橄榄果渣质量与溶剂体积的比(g/mL),下同〕1∶10,回流提取3 h,提取1次,在该条件下MA、OA提取率分别为91.27%、94.73%,浸膏得率为23.38%。

The extraction process of maslinic acid （MA） and oleanolic acid （OA） from the raw material Olea europare L. pomace has been studied. The optimum conditions of extracting MA and OA was ascertained with orthogonal experiment method by taking extraction rate of MA and OA, and total yield of extracts as index. The optimum extraction conditions were ：φ（CH3CH2OH） = 90% ethanol,the ratio of raw materials to solvent 1 ： 10 （g/mL） , reflux extraction for 3 h. Under the above conditions, the extraction rate of MA and OA were 91.27% and 94.73% respectively, and the total yield of extracts was 23.38%.