Studies on the structure of α-branched-β-hydroxylated fatty acids from Corynebacterium ovis (C. pseudotuberculosis)

✍ Scribed by Thuioshi Ioneda; Célio L. Silva; David W. Thomas

• Book ID: 103036942
• Publisher: Elsevier Science
• Year: 1979
• Tongue: English
• Weight: 441 KB
• Volume: 24
• Category: Article
• ISSN: 0009-3084
• DOI: 10.1016/0009-3084(79)90090-2

✦ Synopsis

The composition of the a-branched~-hydroxylated fatty acids from Corynebacterium ovis was studied. These acids were fractionated by argentation thin-layer chromatography in three species according to the degree of unsaturation of their O-acetylated methyl ester derivatives; the isolated fractions were analysed by gas chromatography combined with mass spectrometry. Corynomycolic (2-tetradecyl-3-hydroxy octadecanoic), corynomycolenic (2-tetradecyl-3hydroxy-11-octadecenoic) and corynomycoldienic (2-tetradec-7'-enyl-3-hydroxy-I 1-octadecenoic) acids were identified; these acids represented the main component of the saturated, mono-and di-unsaturated species, respectively. On the other hand, a short-chain corynomycolic acid (2-tetradecyl-3-hydroxy decanoic acid), C24H4803 was found.