Mechanism of formation of sulphur aroma compounds from l-ascorbic acid and l-cysteine during the Maillard reaction

► Study on sulphur aroma compounds from reaction of ascorbic acid with cysteine. ► Study on mechanism of formation of sulphur aroma compounds. ► Some sulphur compounds formed solely by cysteine degradation. ► Other sulphur compounds formed by reaction of ascorbic acid with cysteine. ► C-1 of ascorbic acid was not involved in the formation of sulphur aroma compounds.