RT Journal Article SR Electronic T1 Current Trends in Fermentation Process Control JF PDA Journal of Pharmaceutical Science and Technology JO PDA J Pharm Sci Technol FD Parenteral Drug Association (PDA) SP 64 OP 71 VO 36 IS 2 A1 Daniel N. Bull A1 Carmine Masucci A1 Robert S. Lorincz YR 1982 UL http://journal.pda.org/content/36/2/64.abstract AB Control systems and instrumentation used in the fermentation process industries have been improved substantially over the last decade. This paper will survey the historical trend in such systems from early analog devices to the latest microprocessor based interactive distributed control systems. Special emphasis will be given to modern digital monitors and controllers specifically designed for fermentation processes.