The Fermentation of a Marine Probiotic Bacterium on Low-Cost Media Formulated with Industrial Fish Gelatin Waterstreams and Collagen Hydrolysates

Chemical effluents generated by the isolation of fish gelatin and collagen hydrolysates produced from enzyme proteolysis skin wastes are protein-rich substrates that could be used as nutrients in bacterial bioprocessing. In this study, suitability such supporting growth a marine probiotic bacterium, Phaeobacter sp. DIFR 27-4, was studied. Both were obtained skins shark, tuna, salmon turbot. The chemical composition included complete presence all quantified amino acids. Low-cost culture media formulated with these protein materials alongside very low concentration yeast extract water. batch cultures effluents, rates strain 27-4 somewhat lower than those found control commercial media. case hydrolysates, production biomass similar or higher observed control, larger effluents. A simple evaluation costs different studied indicated around 73–125-fold reduction can achieved when alternative used, comparison to use broth.