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Analysis of vegetable oils for flavor quality by direct gas chromatography
Author(s) -
Dupuy H. P.,
Rayner E. T.,
Wadsworth J. I.,
Legendre M. G.
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/bf02671032
Subject(s) - flavor , odor , gas chromatography , chemistry , chromatography , vegetable oil , quality (philosophy) , food science , organic chemistry , physics , quantum mechanics
and Summary Recently, a direct gas Chromatographic method for examining volatiles in vegetable oils was reported [Dupuy et al., JAOCS 50:340 (1973); and Dupuy et al., Ibid. 53:628 (1976)]. The procedure stimulated the development of instrumental techniques for determining odor and flavor characteristics of vegetable oils. This symposium paper describes modifications of the original direct gas Chromatographie procedure that substantially enhance its sensitivity and applicability. Profiles of volatiles for several experimental oils obtained by the modified system are presented, together with mass spectral data characterizing significant flavor‐related peaks. Regression analysis of the instrumental data, with oil flavor scores, indicates that reliable flavor characteristics of high‐ and low‐quality vegetable oils may be obtained rapidly and efficiently by instrumentation.