Volatile Basic Compounds Identified from a Heated d-Glucose/l-Alanine Mixture

Volatile basic compounds from a heated d-glucose/l-alanine mixture were analyzed by gas chromatography and coupled gas chromatography-mass spectrometry. By comparison of mass spectra with corresponding reference spectra, the following compounds were identified: pyrrolidine, β-picoline, pyrazine, 2-methylpyrazine, 2,5-dimethylpyrazine, 2,3-dimethylpyrazine, 2-ethyl-5-methylpyrazine. 2,3,5-trimethylpyrazine and 2,5-dimethyl-3-ethylpyrazine. 2-Methyl-3,5-diethylpyrazine, 2-methyl-5,6-diethylpyrazine and two alkylpyrazines with M. W. 164 and 178 were also tentatively identified.

No evidence for the presence of N-nitrosamine with low molecular weight was found.