The objective of this investigation was to establish the composition of the yeast (Saccharomyces sp.) obtained as a byproduct of the alcoholic fermentation industry, in the form of an autolysate (AT) and their derivatives, extract (Ex) and insoluble fraction (FI). The total autolysate (AT) and the extract (Ex), after dehydration in spray dryer, were utilized as flavour enhancers in salted biscuits. Addition to the biscuits of 5% Ex improved the essential amino acid score (EAE) from 38 to 60%, and the net protein utilization index (NPR) from 1.0 to 2.0 (100%). There was also a significant improvement in the acceptability and preference of the enriched biscuits by the consumers.
yeast; derivative; ingredient; biscuit; formulation
