Kinetic Study of Organic Acid Formations and Growth of Anaerobiospirillumsucciniciproducens During Continuous Cultures

摘要

Succinic acid-producing Anaerobiospirillum succiniciproducenswas anaerobically grown in glucose-fed continuous culturesusing glucose as a carbon source, and the metabolicflexibility of A. succiniciproducens in response to varyingglucose concentrations and dilution rates was examined.Both succinic acid (SA) and acetic acid (AA) formation wasgrowth-associated, and their growth-rate-related coefficients(K_(SA/X),K_(AA/X))and nongrowth-rate-related coefficients(K'sA,x,K') were slightly influenced by glucose concentrations.A high glucose concentration (38 g/l) and high growth rate(0.63 h-1) did not induce by-product formation.