抄録
Further examinations were made through paper bioautography on the apparent growth-promoting action of thiothiamine, thiamine 2-hydroxyethyl disulfide, thiamine propyl disulfide, thiamine disulfide, and thiamine tetrahydrofurfuryl disulfide against Lactobacillus fermenti-36 and these compounds were found to form thiamine secondarily. Inhibition experiments on pyrithiamine showed that inhibition on thiamine corresponding to the foregoing apparent effect was present and it is assumed that there is no fundamental action of growth-promotion in these compounds against this bacteria.
