Title: Lipase-based quantitation of triacylglycerols in cellular lipid extracts: requirement for presence of detergent and prior separation by thin-layer chromatography
Authors: Van Veldhoven, Paul P ×
Swinnen, Johan
Esquenet, M
Verhoeven, Guido #
Issue Date: 1997
Series Title: Lipids. vol:32 issue:12 pages:1297-300
Abstract: A protocol, based on the use of Pseudomonas lipase, is presented to measure quantitatively the amount of triacylglycerols in extracts from cultured cells of tissues. Since the lipase also acts on di- and monoacylglycerols, separation of the extracts by thin-layer chromatography is recommended. In order to allow the lipase-catalyzed hydrolysis to proceed efficiently, lipid extracts or eluates from silica scrapings were mixed with the detergent Thesit [dodecylpoly(ethylene glycol ether)], prior to drying. After dissolution of the dried residues in water, the amount of triacylglycerols was quantified using Pseudomonas sp. lipase, glycerol kinase, glycerol-phosphate oxidase, and peroxidase. The activity of the latter enzyme was followed either colorimetrically in the presence of 4-aminoantipyrine and 2,4,6-tribromo-3-hydroxybenzoic acid or fluorimetrically in the presence of homovanillic acid.
ISSN: 0024-4201
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Clinical and Experimental Endocrinology
Pharmacology Section (-)
Laboratory of Lipid Biochemistry and Protein Interactions
Laboratory of Lipid Metabolism and Cancer (+)
× corresponding author
# (joint) last author

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