作　　者： ; ; ;

机构地区： 深圳职业技术学院应用化学与生物技术学院

出　　处： 《深圳职业技术学院学报》 2012年第3期59-63,共5页

摘　　要： 以无水乙醇为夹带剂,采用超临界CO2萃取荔枝核,并用气相色谱-质谱联用仪(GC-MS)对荔枝核萃取物的挥发性成分进行了分析.结果表明,以无水乙醇为夹带剂超临界CO2萃取荔枝核的萃取率为5.47%,GC-MS鉴定出32种化合物,主要为甾醇类、萜类、不饱和脂肪酸、棕榈酸、脂肪酸酯、芳香醇,相对质量分数分别为38.8%,26.4%,8.60%,7.54%,8.44%,6.11%.和无夹带剂相比,夹带剂无水乙醇可以提高荔枝核的超临界萃取率. By using absolute ethyl alcohol as extractor, semen litchi was extracted by supercritical CO2 fluid extraction and the extracted volatile components were analyzed by gas chromatography- mass spectrometry （GC-MS）. The extraction yield of semen litchi is 5.74%. Thirty-two compounds were found in the extract including phytosterols, terpenoids, unsaturated fatty acids, hexadecanoic acid, fatty acid ester, aromatic alcohol, with their relative contents reaching 38.8%, 26.4%, 8.60%, 7.54%, 8.44%, and 6.11%, respectively. It is pointed out that absolute ethyl alcohol as extractor improves extraction rate compared with supercritical CO2 fluid.

关 键 词： 荔枝核 无水乙醇 超临界 萃取 气相色谱 质谱法

领　　域： [轻工技术与工程] [轻工技术与工程]