Digestion of chromatin in nuclei by micrococcal nuclease, measured as the change in the concentration of monomer-length DNA with time, displays Michaelis-Menten kinetics. Redigestion of soluble chromatin prepared from nuclei by micrococcal nuclease treatment, however, is apparently first order in enzyme and independent of chromatin concentration. This qualitative difference results from an incr...

The modified sigmoidal bacteria growth functions (the Gompertz, logistic, and Richards) were used to evaluate the methane production process kinetics of agricultural wastes. mesophilic anaerobic co-digestion experiments conducted with various wastes as feedstocks, including cow manure, corn straw, grape leaves, vines, wine residue, strawberry tomato leaves. results showed that manure other incr...

a structured mathematical model of anaerobic conversion of complex organic materials in non-ideally cyclic-batch reactors for biogas production has been developed. the  model is based on multiple-reaction stoichiometry (enzymatic hydrolysis, acidogenesis, acetogenesis and methanogenesis), microbial growth kinetics, conventional material balances in the liquid and gas phases for a cyclic-batch r...