Water ratio effect on the proteins hydrolysis tongue sole by-products (Cynoglossus senegalensis) Effet de l'eau sur l'hydrolyse enzymatique des protéines de coproduits de la sole tropicale (Cynoglossus senegalensis)

In this study the effectiveness of four different water ratio to hydrolyze sole by-products by using Protamex® were compared. Average proteins yields and degree of hydrolysis (DH %) of different hydrolysates were measured, and their peptide profiles were analysed by using gel filtration chromatography. It was found that by changing the hydrolysis conditions it was possible to produce hydrolysates with the same proportion of proteins (60%) and very different in peptide composition (from 294 to 13700 Da).