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Smashing Tissue Extraction and gc analysis of Active Fatty Acids from Oil Cake of Perilla Seeds

Chinese Herbal Medicines 2011年第1期3卷 75-78页

作者： SUN Yan-ling1,LIU Yan-ze2,3,XIAO Han4,WEI Ying-feng4,ZHAO Yu-qing1,5 1.Shenyang Pharmaceutical University,Shenyang 110006,China 2.Bio-organic and Natural Product Laboratory,MRC 311,McLean Hospital/Harvard Medical School,Belmont,MA 02478,USA 3.Institute of Medicinal Plant Development,Chinese Academy of Medical Sciences,Beijing 100193,China 4.Liaoning Jiashi Nutritional Plant Oil Development Co.Ltd.,Shenyang 110035,China 5.Key Laboratory of Structure-Based Drug Design&Discovery,Shenyang Pharmaceutical University,Ministry of Education,Shenyang 110016,China Shenyang Pharmaceutical University Shenyang 110006 China Bio-organic and Natural Product Laboratory MRC 311 McLean Hospital/Harvard Medical School Belmont MA 02478 USA Institute of Medicinal Plant Development Chinese Academy of Medical Sciences Beijing 100193 China Liaoning Jiashi Nutritional Plant Oil Development Co. Ltd Shenyang 110035 China Shenyang Pharmaceutical University Shenyang 110006 China Key Laboratory of Structure-Based Drug Design&Discovery Shenyang Pharmaceutical University Ministry of EducationShenyang 110016 China

Objective To optimize the extraction technology of perilla seeds oil from the oil cake of perilla seeds(OCPS)by using the contents of active fatty acids as evaluation *** The fatty acids were extracted from OCPS,the residue of perilla seeds after cold-press,by smashing tissue extraction(STE),the new technology selected through comparing with classical leaching extraction(LE),Soxhlet extraction(SE),ultrasonic extraction(UE),and supercritical-CO2 fluid extraction(SFE).For optimized condition of STE,orthogonal test was designed and *** contents of five fatty acids in extracted oil and OCPS were determined by *** The optimized extraction parameters were smashing for 1.5 min under extraction power of 150 W and 1:6 of the material/solvent *** contents of five fatty acids in the oils extracted by five techniques from OCPS and determined by gc were as follows:α-linolenic acid(41.12%-51.81%),linoleic acid(15.38%-16.43%),oleic acid (18.93%-27.28%),stearic acid(2.56%-4.01%),and palmitic acid(7.38%-10.77%).Conclusion The results show that STE is the most efficient technology with the highest yield(LE:0.57%;SE:1.03%;UE:0.61%;SFE:0.80%;STE: 1.17%)and shortest time(LE:720 min;SE:360 min;UE:30 min;SFE:120 min;STE:1.5 min)among five tested extraction *** is first reported using STE to extract herbal oil enriched with active fatty acids.

关键词： fatty acids flash extraction gc analysis oil cake of perilla seeds Perilla frutescens smashing tissue extraction

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Application of backflush and micro-flow techniques to the analysis of C5—C13 hydrocarbons in crude oils and its geochemical significance

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Progress in Natural Science:Materials International 2007年第11期17卷 1382-1387页

作者： Wang Peirong1,2, Zhao Hong2,3, Xu Guanjun1,4, Zhu Cuishan2,3, Xiao Tingrong4, Zhang Min2,3 and Zhang Bin1,4(1. Key Laboratory of Petroleum Geochemistry, China National Petroleum Corporation, Beijing 100083, China 2. Geochemistry Department of Yangtze University, Jingzhou 434023, China 3. Key Laboratory of Exploration Technologies for Oil and Gas Resources, Ministry of Education, Yangtze University, Jingzhou 434023, China 4. Petroleum Geology Central Laboratory, Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China) Key Laboratory of Petroleum Geochemistry China National Petroleum Corporation Beijing 100083 China Geochemistry Department Yangtze University Jingzhou 434023 China Key Laboratory of Exploration Technologies for Oil and Gas Resources Yangtze University Jingzhou 434023 China Petroleum Geology Central Laboratory Research Institute of Petroleum Exploration and Development PetroChina Beijing 100083 China

An Agilent 6890N gc equipped with both FID and Agilent 5975 MSD analyzer has been employed to analyze C5—C13 hydrocarbon fractions of crude oils. A technical combination of program temperature volatilizer injection, backflush and micro-flow controller afforded a fine separation of C5—C13 compounds on a PONA column with the heavy part of crude oils being cut off before entering the analytical column. Both gc-FID chromatogram and gc-MS mass chromatograms (MID and full scan) could be obtained at the same time. The retension time differences of nC6—nC13 alkanes between gc and TIC were in the range of 0.02—0.58 minutes. Totally 286 peaks have been assigned group compositions. Results on 8 typical oil samples from CNPC Key Laboratory Crude Oil Library showed that the characteristics of C6—C13 hydrocarbon group composition could be used in oil-oil correlation studies.

关键词： gc analysis gc/MS analysis backflush micro-flow controller light fraction in crude oil

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