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Triacylglycerols of winter butterfat containing configurational isomers of monoenoic fatty acyl residues. II. Saturated dimonoenoic triacylglycerols
Author(s) -
Laakso Päivi,
Kallio Heikki
Publication year - 1993
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/bf02564222
Subject(s) - butterfat , chemistry , saturated fatty acid , fatty acid , moiety , glyceride , structural isomer , high performance liquid chromatography , organic chemistry , glycerol , chromatography , milk fat , linseed oil
Triacylglycerols of Finnish winter butterfat containing one saturated and two monoenoic fatty acyl residues were studied. With silver ion high‐performance liquid chromatography (HPLC), molecules were separated according to the difference in the configuration of one fatty acyl moiety. The distribution of the saturated cis,trans ‐dimonoenoic and saturated cis,cis ‐dimonoenoic triacylglycerols according to their acyl carbon numbers was compared by means of reversed‐phase HPLC and tandem mass spectrometry. Furthermore, two examples of the fatty acid composition of a specified molecular weight species were shown. The fatty acid compositions of corresponding saturated cis,trans ‐dimonoenoic and saturated cis,cis ‐dimonoenoic triacylglycerols were similar; however, there may be differences in the proportions of different fatty acid combinations or in the distribution of fatty acids between primary and secondary glycerol positions.