Determination of protein in adipose tissue extracts

An accurate and sensitive method for determination of protein in adipose tissue extracts based on a scaled-down version of the method of Lowry et al. (1951, J. Biol. Chem. 193, 265–275) is described. Protein is quantitatively precipitated by trichloroacetic acid with a nonionic detergent as a bulk-i...

Full description

Bibliographic Details
Main Authors: H Tornqvist, P Belfrage
Format: Article
Language:English
Published: Elsevier 1976-09-01
Series:Journal of Lipid Research
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0022227520417535
id doaj-2e7f9eb974f34777ae1ea8b424a080c0
record_format Article
spelling doaj-2e7f9eb974f34777ae1ea8b424a080c02021-04-24T05:54:16ZengElsevierJournal of Lipid Research0022-22751976-09-01175542545Determination of protein in adipose tissue extractsH Tornqvist0P Belfrage1Department of Physiological Chemistry, Medical Faculty, University of Lund, Lund, SwedenDepartment of Physiological Chemistry, Medical Faculty, University of Lund, Lund, SwedenAn accurate and sensitive method for determination of protein in adipose tissue extracts based on a scaled-down version of the method of Lowry et al. (1951, J. Biol. Chem. 193, 265–275) is described. Protein is quantitatively precipitated by trichloroacetic acid with a nonionic detergent as a bulk-increasing substance and the precipitate is extracted with an organic solvent. This interference caused by lipids, sulfhydryl reagents, and several other compounds is eliminated. The accuracy of the determination of dilute reference protein solutions (2–20 µg/ml) is demonstrated.http://www.sciencedirect.com/science/article/pii/S0022227520417535nonionic detergentTCA precipitationsolvent extraction
collection DOAJ
language English
format Article
sources DOAJ
author H Tornqvist
P Belfrage
spellingShingle H Tornqvist
P Belfrage
Determination of protein in adipose tissue extracts
Journal of Lipid Research
nonionic detergent
TCA precipitation
solvent extraction
author_facet H Tornqvist
P Belfrage
author_sort H Tornqvist
title Determination of protein in adipose tissue extracts
title_short Determination of protein in adipose tissue extracts
title_full Determination of protein in adipose tissue extracts
title_fullStr Determination of protein in adipose tissue extracts
title_full_unstemmed Determination of protein in adipose tissue extracts
title_sort determination of protein in adipose tissue extracts
publisher Elsevier
series Journal of Lipid Research
issn 0022-2275
publishDate 1976-09-01
description An accurate and sensitive method for determination of protein in adipose tissue extracts based on a scaled-down version of the method of Lowry et al. (1951, J. Biol. Chem. 193, 265–275) is described. Protein is quantitatively precipitated by trichloroacetic acid with a nonionic detergent as a bulk-increasing substance and the precipitate is extracted with an organic solvent. This interference caused by lipids, sulfhydryl reagents, and several other compounds is eliminated. The accuracy of the determination of dilute reference protein solutions (2–20 µg/ml) is demonstrated.
topic nonionic detergent
TCA precipitation
solvent extraction
url http://www.sciencedirect.com/science/article/pii/S0022227520417535
work_keys_str_mv AT htornqvist determinationofproteininadiposetissueextracts
AT pbelfrage determinationofproteininadiposetissueextracts
_version_ 1721511428249092096