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Lipid extraction of tissues with a low-toxicity solvent

✍ Scribed by Atsushi Hara; Norman S. Radin

Publisher: Elsevier Science
Year: 1978
Tongue: English
Weight: 444 KB
Volume: 90
Category: Article
ISSN: 0003-2697
DOI: 10.1016/0003-2697(78)90046-5

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✦ Synopsis

An improved method for extracting the lipids from tissues consists of the use of hexane:isopropanol, followed by a wash of the extract with aqueous sodium sulfate to remove nonlipid contaminants. This method has a number of advantages over the common usage of chloroform:methanol. The solvents are somewhat less toxic, interference in processing by proteolipid protein contamination is avoided, the two phase separate rapidly during the washing step, the solvent density is low enough to permit centrifugation of the homogenate as an alternative to filtration, the solvents are cheaper, and the washed extract can be applied to a chromatographic column with continuous monitoring of the elution in the far ultraviolet region. The new extraction method is inefficient for the extraction of gangliosides.

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