Panela Monitor

Document repository

Sensory aroma from Maillard reaction of individual and combination of amino acids with glucose in acidic conditions

The aroma produced in glucose–amino acids (individual and in combination) Maillard reaction, under acidic conditions at 100 oC were determined and compared by trained panellist. Proline produced pleasant, flowery and frgrant aroma. Phenylalanine and tyrosine produced dried roses aroma. Alanine produced fruity and flowery odour, while aspartic acid and serine both produced pleasant, fruity aroma. Arginine produced a pleasant, fruity and sour aroma at pH 5.2, but not at its natural pH. Glycine, lysine, threonine and valine produced a pleasant caramel-like odour. Isoleucine and leucine gave off a burnt caramel aroma. Methionine developed a fried potato odour. Cysteine and methionine produced savoury, meaty and soy sauce-like flavours. A combination of these amino acids produced different types of aroma, with the stronger note dominating the odour of the mixture. This study will help the prediction of flavour characteristics of hydrolysates from different protein sources

Download document (104.9 KB)