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Effects of Coated Capillary Column, derivatization, and Temperature Programming on the Identification of Carica papaya Seed Extract Composition Using GC/MS Analysis

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Journal of Analysis and Testing 2020年第1期4卷 23-34页

作者： Muhamad Shirwan Abdullah Sani Jamilah Bakar Russly Abdul Rahman Faridah Abas International Institute for Halal Research and Training Level 3KICT BuildingInternational Islamic University MalaysiaJalan Gombak53100 Kuala LumpurMalaysia Konsortium Institut Halal IPT Malaysia Ministry of Higher EducationBlock E8Complex EFederal Government Administrative Centre62604 PutrajayaMalaysia Halal Product Research Institute Universiti Putra Malaysia43400 SerdangSelangorMalaysia Department of Food Technology Faculty of Food Science and TechnologyUniversiti Putra Malaysia43400 SerdangSelangorMalaysia

Some of the common practices to assess the composition of plant extract,including Carica papaya seed extract(CPSE)are direct injection of the extract,compound separation using polyethylene glycol capillary column(DB-WAX),and non-linear-temperature programming(NLTP)of GC/MS *** study specifically compared the coating of capillary column,sample derivatization,and temperature programming of GC/MS to determine the composition of *** retention indices(RI)of the detected compounds were determined and compared to the reference *** particular,5%phenyl-95%methylpolysiloxane(HP-5MS)-,DB-WAX-,and biscyanopropyl polysiloxane(HP-88)-coated capillary columns were used to identify the composition of *** this study,HP-5MS column,which separated the highest number of compounds(26 compounds)from CPSE,was deemed as the most suitable *** GC/MS analysis of derivatized CPSE identified 21 compound groups,where fatty acids and fatty acid methyl esters served as the major compounds(80.23%),followed by these compounds in decreasing order:amides>nitriles>sterols>fatty aldehydes>organic acids.A stronger correlation determination between the carbon number and alkane retention time of linear-temperature programming(LTP)(R^(2)=0.9859)was found,as compared to its correlation determination with NLTP(R^(2)=0.9175),which exhibited an almost equal RI of LTP to the reference ***,GC/MS analysis for the derivatized CPSE using HP-5MS column separation and LTP is highly recommended.

关键词： Capillary column Carica papaya seed GC/MS sample derivatization Temperature programming

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