Flavour and off-flavour compounds of Swiss Gruyère cheese. Evaluation of potent odorants
2001; Elsevier BV; Volume: 11; Issue: 11-12 Linguagem: Inglês
10.1016/s0958-6946(01)00108-x
ISSN1879-0143
Autores Tópico(s)Advanced Chemical Sensor Technologies
ResumoThe flavour of a typical sample of Gruyère cheese and that of a Gruyère exhibiting a potato-like off-flavour was examined by instrumental and sensory analyses. Based on the results of dynamic headspace gas chromatography-mass spectrometry (DHGC/MS), aroma extract dilution analysis (AEDA) and gas chromatography-olfactometry of static headspace samples (GCO-H), 2-/3-methylbutanal, methional, dimethyltrisulphide, phenylacetaldehyde, 2-ethyl-3,5-dimethylpyrazine, 2,3-diethyl-5-methylpyrazine, methanethiol, as well as butyric, 2-/3-methylbutyric and phenylacetic acid form the typical flavour of Gruyère cheese. The potato-like character of the sample showing an aroma defect, however, could not be attributed definitively to one of these compounds. Considering the results of DHGC/MS and AEDA, 2-ethyl-3,5-dimethylpyrazine and 2,3-diethyl-5-methylpyrazine could be the possible causes of the off-flavour.
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