Studies on the Metabolic Products of <i>Bacillus subtilis</i>. IV

Abstract

As a method for detection of tetramethylpyrazine, use of ultraviolet spectrum was examined. It was assumed that acetoin would be formed as a precursur of tetramethyl-pyrazine from the result of shake culture and a mechanism was presumed for the formation of tetramethylpyrazine in a medium added with acetoin.