Name of variant Type of medium for the cultivation Aeration regime Lag-phase, days Maximal growth rate, 1/ day Doubling time, days Biomass in stationary phase, mg of protein/ml CA Complete Anaerobic 13 0.029 23.32 0.055 CM Complete Microaerobic 10 0.058 11.96 0.104 CMAg Complete + agarose Microaerobic 10 0.124 5.60 0.186 DM Defined Microaerobic - 0 0 0 DMAg Defined + agarose Microaerobic 2 0.141 4.93 0.387

Table 2: Physiological parameters of propionic bacteria growth at different regimes of cultivation.