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Nonpolar lipids of a halotolerant species of Staphylococcus epidermidis

descriptionPublicationkeyboard_double_arrow_right Article 01 Jan 1976 English Publisher:Canadian Science PublishingJournal:Canadian Journal of Biochemistry, volume 54, pages 79-85 (issn: 0008-4018,

Authors: S C Kushwaha; M Kates;

doi: 10.1139/o76-013

pmid: 1252986

Nonpolar lipids of a halotolerant species of Staphylococcus epidermidis

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Abstract

The nonpolar lipids of a halotolerant Staphylococcus epidermidis, isolated in pure culture from a growth medium for extreme halophiles containing 25% sodium chloride, were found to contain squalene, menaquinone-7, free fatty acids (mainly anteiso-15:0 and anteiso-17:0), undecaprenol, nonaprenol with predominately cis-isoprene residues, heptaprenol, with predominately trans-isoprene residues, and 1,2- and 1,3-diglycerides containing anteiso-15:0 and anteiso-17:0 branched chain fatty acid residues. The above compounds were isolated in pure form by column and thin-layer chromatography and were characterized by ultraviolet, proton magnetic resonance, and mass spectra. Fatty acid moieities were characterized by gas–liquid chromatographic retention times of their methyl esters.

Keywords

Diglycerides, Squalene, Staphylococcus, Chromatography, Thin Layer, Fatty Acids, Nonesterified, Fatty Alcohols, Lipids, Mass Spectrometry

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