Control of acetic acid concentration by pH-stat continuous substrate feeding in heterotrophic culture phase of two-stage cultivation of Alcaligenes eutrophus for production of P(3HB) from CO2, H2, and O2 under non-explosive conditions - Ishizaki, Ayaaki.; Sugimoto, Toshikazu.; Tanaka, Kenji.; Tsuge, Takeharu.