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Position: Home > Articles > Study on Extraction of Liposoluble Components from Rhodiola L by Supercritical Carbon Dioxide FOOD SCIENCE 2006 (10) 388-391

红景天超临界CO_2萃取工艺研究

作  者:
龚钢明;刘玉梅
单  位:
上海应用技术学院生物与食品工程系;上海交通大学分析测试中心
关键词:
超临界二氧化碳萃取;红景天;GC-MS
摘  要:
研究超临界CO2萃取红景天的工艺。考察夹带剂、萃取压力、温度、时间因素对萃取物得率的影响,正交设计试验确定工艺条件。结果显示:各因素对萃取物得率影响程度是萃取压力>夹带剂浓度>时间>温度。最优工艺条件为萃取压力30MPa、夹带剂体积分数φ(乙醇)=80%、时间120min、温度45℃。萃取物经GC-MS仪进行化学成分分析。鉴定出46种组分,主要包括醇、酯、烷烃等化合物。
译  名:
Study on Extraction of Liposoluble Components from Rhodiola L by Supercritical Carbon Dioxide
作  者:
GONG Gang-ming1,LIU Yu-mei2 (1.Department of Biology and Food Engineering, Shanghai Institute of Technology, Shanghai 200235, China; 2.Instrumental Analysis Center, Shanghai Jiao Tong University, Shanghai 200030, China)
关键词:
supercritical carbon dioxide extraction;Rhodiola L;GC-MS
摘  要:
A technology of extracting concretes from the Rhodiola L with supercritical carbon dioxide is described. The effects of entrainer, extraction temperature,extraction pressure and extraction time on general rate of extraction is systematically investigated. The optimum operating conditions are confirmed. The result shows:the order of sequence of factors is extraction pressure>entrainer concentration>time >temperature. The optimum operating conditions are extraction pressure 30MPa, entrainer concentration 80%, time 120min, temperature 45℃. The extract was analyzed by gas chromatograph-mass spectrometry. In extract components were indentified, main components of this extrct were alcohol ester alkane, aldehyde.

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