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AROMA PROPERTIES AND THRESHOLDS OF SOME BRANCHED‐CHAIN AND OTHER MINOR VOLATILE FATTY ACIDS OCCURRING IN MILKFAT AND MEAT LIPIDS 1
Author(s) -
BRENNAND CHARLOTTE P.,
HA J. KIM.,
LINDSAY ROBERT C.
Publication year - 1989
Publication title -
journal of sensory studies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 53
eISSN - 1745-459X
pISSN - 0887-8250
DOI - 10.1111/j.1745-459x.1989.tb00461.x
Subject(s) - aroma , butterfat , chemistry , food science , fatty acid , polyunsaturated fatty acid , organic chemistry , milk fat , linseed oil
. Aroma properties of twenty‐three branched‐chain, odd‐numbered, or unsaturated fatty acids which had each been dispersed in acidic aqueous media (pH 2.0) were evaluated. Aroma threshold values were determined using approximately 95 judges for assessing the presence of aromas over dilutions of each fatty acid. Qualitative aroma threshold values for individual fatty acids ranged from 0.006 to 82.4 ppm in the acidic solutions, and 4‐ethyloctanoic acid exhibited the lowest threshold of the group tested. Qualitative aroma assessments of dilutions of each fatty acid showed a wide range of unique aroma properties. Fatty acids exhibiting branching at the 4‐position had goaty/muttony/sheepy aroma notes as did other fatty acids containing 8‐carbon chain structures. Cheese‐like aromas were associated with the shorter branched‐chain fatty acids.