Biotechnological Production of 2,3-butanediol from Agroinducstrial Food Wastes

摘要

As a part of a research program on the exploitation of common agroindustrial wastes to obtain products of high added value by microbial processes, this study investigates 2,3-butanediol production by Enterobacter aerogenes in a stirred batch reactor under micro-aerobic conditions. After the optimal operating conditions have been selected (pH, temperature, starting concentration) using a glucose solution as a sugar-beet molasses and starch hydrolysate.The molar yield for sugar bioconversion in 2,3-butanediol (76% from starch hydrolisate, 56% from molasses, and 85% from cheese whey) show the possiblilities of producing large amount of glycol and reducing the environmental impacts of these biodegraded wastes.