Frederick A Keller Jr, Jeffrey S Ganoung, Susan J Luenser: Mutant strain of Clostridium thermoaceticum useful for the preparation of acetic acid. CPC International, Stanley M Parmerter, April 23, 1985: US04513084 (9 worldwide citation)

A biologically pure mutant of C. thermoaceticum (ATCC No. 39,289) useful for the production of acetic acid by a fermentation reaction. This mutant is capable of growing at a pH below 5.0 and shows a specific growth rate of at least 0.30 hr.sup.-1 when continuously cultured under optimum conditions.

Jay A Smith, Susan J Luenser: Process for the production of fructose transferase enzyme. CPC International, Stanley M Parmerter, January 5, 1982: US04309505 (5 worldwide citation)

An improved process for obtaining fructosyl transferase enzyme from the yeast Aureobasidium pullulans. Prior purification process steps are eliminated by use of conditions which do not produce black pigments and viscous polysaccharides.