抄録
The acetone-powdered enzyme of Bacillus subtilis, prepared by the author, was found to decompose alliin or methiin, and produce thiamine allyldisulfide or thiamine methyldisulfide. The enzymatic activity was depressed or counteracted by addition of metaphosphoric acid and potassium cyanide, respectively, or merely by heating procedure. The optimum pH of the activity was about 7.0 and the optimum temperature was 37℃.
