ABSTRACT
Addition to media of yeast extract, a vitamin mixture containing vitamin B12, biotin, pyridoxamine, and p-aminobenzoic acid, or vitamin B12 alone enhanced formation of ethanol but decreased lactate production in the fermentation of cellulose by Clostridium thermocellum I-1-B. A similar effect was not observed with C. thermocellum ATCC 27405 and JW20.
FOOTNOTES
↵* Corresponding author.
↵† Present address: Kashima-Kita Electric Power Corp., 16, Towada. Kamisu-machi, Kashima-gun, Ibaraki, Japan 314-02.
↵‡ Present address: Environmental Engineering Department, Institute of Technology, Shimizu Corp., 4-17, Etchujima 3-chome, Koto-ku, Tokyo, Japan 135.
↵§ Present address: Laboratory of Chemistry, Faculty of Home Economics, Kyoritsu Women's University, 1-710, Motohachioji, Hachioji, Tokyo, Japan 193.
↵∥ Present address: Global Environment Department, Engineering Research Center, Tokyo Electric Power Co., Inc., 2-4-1, Nishitsutsujigaoka Chofu-shi, Tokyo, Japan 182.
