Process characteristics of exopolysaccharide production by Streptococcus thermophilus

The kinetics of growth and exopolysaccharide (EPS) production from Streptoc occus thermophilus were studied and optimized for different physical (tempe rature, pH, aeration rate) and chemical (carbon/nitrogen ratio) factors in milk medium. From these experiments, it was clear that EPS production displ ays primary metabolite kinetics. Using the optimized conditions, EPS produc tion could also be established in de Man Rogosa Sharpe medium. Growth-assoc iated EPS production, bacterial growth and other fermentation data were tra nslated into a mathematical model.