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Comparison of Constituents and Insecticidal Activities of Essential Oil from Artemisia lavandulaefolia by Steam Distillation and Supercritical-CO_2 Fluid Extraction 被引量:8
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作者 YUAN Hai-bin SHANG Li-na +1 位作者 WEI Chun-yan REN Bing-zhong 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2010年第6期888-892,共5页
Essential oil was extracted from Artemisia lavandulaefolia DC.by steam distillation(SD) and supercritical-CO2 fluid extraction(SFE),respectively.The constituents of the essentil oils extracted with those two metho... Essential oil was extracted from Artemisia lavandulaefolia DC.by steam distillation(SD) and supercritical-CO2 fluid extraction(SFE),respectively.The constituents of the essentil oils extracted with those two methods were analyzed by gas chromatography-mass spectrometry(GC-MS) and insecticidal activities of the essential oils were evaluated,then the results were compared to assess their biological activity.Thirty-one compounds were identified in the essential oil extracted by SD,and its main components were eucalyptol,α,α,4-trimethyl-3-cyclohexene-1-methanol and so on.Twenty-two compounds were identified for the essential oil extracted by SFE,and its main components were cyclodecene,n-hexadecanoic acid and so on.Six chemical compositions were all contained in the essential oils extracted by the two methods,i.e.,eucalyptol,α,α,4-trimethyl-3-cyclohexene-1-methanol,caryophyllene,[3aS-(3aα,3bβ,4β,7α,7aS)]-octahydro-7-methyl-3-methylene-4-(1-methylethyl)-1H-cyclopenta[1,3]cyclopropa-[1,2]benzene,nerolidol and(-)-Spathulenol.The fumigation toxicity of the essential oil obtained by means of SD to the adults of Sitophilus zeamais is significantly higher than that of the essential oil by means of SFE.The contact toxicity of the essential oil obtained by means of SFE to the adults of S.zeamais is higher than that of the essential oil obtained by means of SD,but the difference is not significant. 展开更多
关键词 Artemisia lavandulaefolia DC. Essential oil supercritical-co2 fluid extraction Steam distillation GC-MS Insecticidal activity
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Supercritical Fluid Carbon Dioxide in the Extraction of Lanolin and Its Alcohol
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作者 林苗 陈小立 杨勇 《Journal of Donghua University(English Edition)》 EI CAS 2003年第1期105-108,共4页
The use of supercritical fluid carbon dioxide (SFCO2) in extraction of lanolin and its alcohol is superior to the conventional solvent extraction method. Its distinctive advantages include high extractive ratio, nonto... The use of supercritical fluid carbon dioxide (SFCO2) in extraction of lanolin and its alcohol is superior to the conventional solvent extraction method. Its distinctive advantages include high extractive ratio, nontoxic and nonflammable solvents, and minimal by -product pollution. The resulting refined lanolin and its alcohol have light color and little odor, and can be used as raw materials for high grade cosmetic products. 展开更多
关键词 supercritical fluid carbon dioxide (SF - CO_2) extraction LANOLIN lanolin alcohol acid value iodine value.
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