Sherman & Shalloway
Process for continuous cultivation of protein-producing microorganisms
 A process for continuous cultivation of microorganisms capable of producing protein while adjusting the pH of the culture broth to a constant value with ammonia, characterized in that the growth rate of the microorganisms is maintained constant by maintaining the rate of consumption of ammonia constant. 
Dainippon Ink and Chemicals, Incorporated Dainippon Sugar Manufacturing Co., Ltd.
C C Y Y Y Y Y C
C12N C12N Y10S Y10S Y10S Y10S Y10S C12N
inventional inventional additional additional additional additional additional inventional
Masaharu Toshio Hidenori Yahiko
Yamada Tanaka Shimamatsu Suzuki