Ichiro Watanabe, Yasuo Ogawa, Susumu Seki: Method for producing acrylamide using a microorganism. Nitto Chemical, Mitsubishi Rayon, Sughrue Mion Zinn Macpeak & Seas, July 25, 1989: US04851342 (6 worldwide citation)

A method is described for producing acrylamide from acrylonitrile by the action of a microorganism having nitrilase activity in an aqueous medium, which comprises conducting the reaction in the presence of an alkali metal sulfate at an ionic activity of from 0.004 to 0.01 mole per liter while contro ...