Recognition and quantitation of cis-vaccenic and eicosenoic fatty acids in olive oils by 13C nuclear magnetic resonance spectroscopy.
The presence of 11-cis monoenoic fatty acids was detected in olive oil samples by means of 13C nuclear magnetic resonance spectroscopy, and the positional isomery on the glycerol backbone was derived. The 11-cis vaccenic and eicosenoic fatty acid resonances were recognized and the amounts of the fatty acids quantified. For comparison purposes, a quantitative analysis was also made by gas chromatography.
Scano
P
P
Dipartimento di Scienze Chimiche, Universita di Cagliari, Complesso Universitario di Monserrato, Cagliari, Italy.
Casu
M
M
Lai
A
A
Saba
G
G
Dessi
M A
MA
Deiana
M
M
Corongiu
F P
FP
Bandino
G
G
D002247:Carbon Isotopes; D005231:Fatty Acids, Unsaturated / Q000032:analysis*; D009682:Magnetic Resonance Spectroscopy; D009829:Oleic Acids / Q000032:analysis*; D000069463:Olive Oil; D010938:Plant Oils / Q000737:chemistry*
D002247:Carbon Isotopes; D005231:Fatty Acids, Unsaturated; D009829:Oleic Acids; D000069463:Olive Oil; D010938:Plant Oils; C050413:11-octadecenoic acid