| 无水乙醇夹带剂超临界CO2萃取荔枝核 |
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| 引用本文： | 饶长全,乔方,喇文军.无水乙醇夹带剂超临界CO2萃取荔枝核[J].深圳职业技术学院学报,2012,11(3):59-63. |
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| 作者姓名： | 饶长全 乔方 喇文军 |
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| 作者单位： | 深圳职业技术学院应用化学与生物技术学院,广东深圳,518055 |
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| 基金项目： | 现代农业产业技术体系建设专项资金资助 |
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| 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．
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| 关 键 词： | 荔枝核 无水乙醇 超临界CO2萃取 气相色谱一质谱法 |
Semen Litchi Extraction by Supercritical Carbon Dioxide Fluid Base on Absolute Ethyl Alcohol |
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| RAO Changquan,QIAO Fang,LA Wenjun.Semen Litchi Extraction by Supercritical Carbon Dioxide Fluid Base on Absolute Ethyl Alcohol[J].Journal of Shenzhen Polytechnic,2012,11(3):59-63. |
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| Authors: | RAO Changquan QIAO Fang LA Wenjun |
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| Institution: | (School of Applied Chemistry and Biological Technology,Shenzhen Polytechnic,Shenzhen,Guangdong 518055,China) |
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| Abstract: | 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. |
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| Keywords: | semen litchi absolute ethyl alcohol supercritical C02 fluid extraction gas chromatography- |
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