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trans Fatty acid content of commercial margarine samples determined by gas liquid chromatography on OV‐ 275
Author(s) -
Ottenstein D. M.,
Wittings LA.,
Walker G.,
Mahadevan V.,
Pelick N.
Publication year - 1977
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02676276
Subject(s) - gas chromatography , chemistry , cis–trans isomerism , chromatography , fatty acid , organic chemistry
Gas liquid chromatography (GLC) of margarine methyl esters on a 20 ft × 1/8 in. column containing 15% OV‐275 on 100/120 mesh Chromosorb P AW‐DMCS at 220 C provided practical separations of trans octadecamonoenoates from the corresponding cis ‐isomers and of trans, trans ‐ and cis,trans‐ octa ‐decadienoates from the corresponding cis.cis ‐isomers. Trans content by GLC was in reasonable agreement (±1–2%) with total trans content by infrared analysis in six of seven commercial margarine samples.