Studies on antimicrobial effect of thiamine dilaulylssulfate and sodium laulyl sulfate on therowth ofHiochigbacteria

Abstract

The antimicrobial effect of thiamine dilaulyl sulfate (TL) and laulyl sulfate (LS) on the gro wth ofHiochi bacteria in sake was analised.
1. From the experiments on various kinds of factors for antimicrobial activities, both TL and LS were found to inhibit the growth of Hiochi bacteria at a concentration 10-20 ppm in sake, and to have 10-20 times as strong antimicrobial activity as salicylic acid.
2. Both TL and LS were able to sustain foam in sake after shaking.
3. From the result of the sensory test, TL showed a different flavor (B1-flavor) in sake at a concentration near 10 ppm.