The identification of aroma compounds,formed from the model reactions of ascorbic acid and cysteine at pH 8.00 and(140±2)℃ for 2h,was performed using a solid-phase microextraction-gas chromatography-mass spectrometry(SPME-GC-MS) technique.The effect of carnosine on aroma compounds was investigated.Forty-seven aroma compounds were identified and showed that sulfur-containing compounds such as alicyclic S compounds,thiophenes and thienothiophenes were the most abundant compounds.Other compounds identified wer...