Can sensory boar taint levels be explained by fatty acid composition and emitted volatile organic compounds in addition to androstenone and skatole content?
Burgeon, Clément; Font-i-Furnols, Maria; Garrido, María Doloreset al.
[en] This study aimed at understanding which molecules were responsible for the differences existing in
boar taint sensory evaluation. The latter was therefore linked to the results of skatole and
androstenone chemical analyses, fatty acid composition and VOC profiles of heated backfat. This
study confirmed that some discrepancy exists between chemical analysis and sensory evaluation of
tainted backfats. Significant correlations between human nose scores and fatty acid composition were
not revealed. Strong correlations between emissions and contents in skatole and androstenone were
found. Oxidation products of polyunsaturated fatty acids, with fatty odor descriptors, were found to be
more present in the VOC profiles of boar fat considered untainted through the human nose
methodology. Weak coefficient of determination for partial least square regression indicates that other
factors, yet unknown, are responsible for sensory evaluation outcomes. These findings hence support
the idea that high human nose score is mainly due to boar taint compounds rather than general
differences in VOC profiles.
Keywords: boar taint, androstenone, skatole, human nose, fatty acid, VOC
Disciplines :
Chemistry Food science
Author, co-author :
Burgeon, Clément ; Université de Liège - ULiège > TERRA Research Centre > Chimie des agro-biosystèmes
Font-i-Furnols, Maria
Garrido, María Dolores
Linares, María Belén
Brostaux, Yves ; Université de Liège - ULiège > TERRA Research Centre > Modélisation et développement
Sabeña, Gerard
Fauconnier, Marie-Laure ; Université de Liège - ULiège > TERRA Research Centre > Chimie des agro-biosystèmes
Panella-Riera, Núria
Language :
English
Title :
Can sensory boar taint levels be explained by fatty acid composition and emitted volatile organic compounds in addition to androstenone and skatole content?
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