Mixtures of 2,4-decadienal with either cysteine or glutathione were reacted in a closed sample cylinder in an aqueous medium. Each solution was adjusted to pH 7.5 and heated for 1 h at 180 °C, a representative frying temperature. The volatiles produced by degradations and interactions were isolated by simultaneous solvent-steam distillation and analyzed by gas chromatography and coupled gas chromatography-mass spectrometry. A total of 45 compounds was identified from the thermal interaction of 2,4-decadienal and cysteine with 2,4,6-trimethylperhydro-l,3,5-dithiazine as the major component. A total of 42 volatiles was determined from the thermal interaction of 2,4-decadienal and glutathione, and 2-pentylpyridine was the major component. Most of the identified products can be accounted for by well-known chemical pathways.
All Science Journal Classification (ASJC) codes
- Agricultural and Biological Sciences(all)