Use of random forest methodology to link aroma profiles to volatile compounds: Application to enzymatic hydrolysis of Atlantic salmon (Salmo salar) by-products combined with Maillard reactions

•Regression Trees and Random Forests methodology: a tool to predict a whole sensory profile.•Four main volatile compounds separate hydrolysates into five groups.•Prediction results may be sensitive to sensory measurements variability.•Appropriate process conditions combining hydrolysis parameters and Maillard Reaction lead to specific roasted odor.