The proposed scheme for the study of volatiles generated by the
oxidative degradation of a carotenoid, consisting of oxidation of the
carotenoid adsorbed in MCC simulating dehydrated foods, solid-phase
microextraction of the volatile compounds generated and identification
of the volatiles by gas chromatography/mass spectrometry, provided
important information about the degradation of lycopene. This scheme
with small alterations in time and temperature of exposition can be
used for further investigation of lycopene degradation, as well as
degradation of other carotenoids, providing direct evidence of a
precursor–product relationship between the carotenoid and the volatile compounds. Of the ten volatile compounds identified as products
of non-enzymatic oxidation of lycopene in the present study, seven
had been previously reported as products of enzymatic oxidation of
lycopene
The proposed scheme for the study of volatiles generated by the
oxidative degradation of a carotenoid, consisting of oxidation of the
carotenoid adsorbed in MCC simulating dehydrated foods, solid-phase
microextraction of the volatile compounds generated and identification
of the volatiles by gas chromatography/mass spectrometry, provided
important information about the degradation of lycopene. This scheme
with small alterations in time and temperature of exposition can be
used for further investigation of lycopene degradation, as well as
degradation of other carotenoids, providing direct evidence of a
precursor–product relationship between the carotenoid and the volatile compounds. Of the ten volatile compounds identified as products
of non-enzymatic oxidation of lycopene in the present study, seven
had been previously reported as products of enzymatic oxidation of
lycopene
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