A Kinetic Model for Substrate and Energy Consumption of Microbial Growth under Substrate-Sufficient Conditions

摘要: The growth of heterotrophic microorganisms can be classified into substrate-limited and substrate-sufficient according to the relative availability substrate (carbon energy source) other nutrients. It is generally observed that consumption rates (ATP) are higher under conditions than limitation. excess ATP often influenced by residual concentration in a. relatively wide range. To account for these effects, a kinetic model proposed describe microbial conditions. According model, specific rate culture expressed as sum at corresponding an additional due substrate. same form also applies oxygen aerobic culture, respectively. linear equations Pirt Stouthamer Bettenhausen used growth. carbon surplus described similar Michaelis&β;Menten kinetics. has been verified with experimental data from three continuous cultures representing both anaerobic on substrates low high degrees reductance. Using this parameters maximum yield maintenance requirement (both terms ATP) different limitations better defined quantified. range concentrations which affected assessed. This information should helpful designing medium reactor operating interpreting results obtained limiting