Formation of N-alkylpyrroles in corn oil/amino acid model systems

Autor: Takayuki Shibamoto, Carlos Macku
Rok vydání: 1992
Předmět:
Zdroj: Food Chemistry. 45:33-36
ISSN: 0308-8146
DOI: 10.1016/0308-8146(92)90008-p
Popis: Corn oil was heated with alanine, cysteine, glycine, phenylalanine, ammonia, methylamine, or ethylamine at 180°C for 4 h. The volatiles formed in the headspace were collected using a simultaneous purging and solvent extraction apparatus and analyzed by gas chromatography and gas chromatography/mass spectrometry. Fourteen mono- and di-alkylpyrroles were identified in the headspace extracts of the corn oil/amino acid mixtures and the corn oil/amine mixtures. It is proposed that α,β-unsaturated fatty aldehydes reacted with the alkylamine produced from the corresponding pyrolyzed amino acid to form 1-alkylpyrroles.
Databáze: OpenAIRE