The influence of mutagenic chemicals on lactic acid fermentation by Lactobacillus bulgaricus AU.
Lactic acid fermentation from molasses by L. bulgaricus AU in the presence of caffeine and ammonium fluoride was studied. It was found that caffeine had a stimulating effect only at lower concentration (0.001%-0.002%), while at high concentration the acid-producing activity of the bacteria was considerably depressed. Ammonium fluoride, at a concentration of 0.001%-0.005%, had a stimulating effect on the activity of the bacteria, maximum activity was observed at a concentration of 0.003%.
D064751:Ammonium Compounds; D002110:Caffeine / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D005285:Fermentation / Q000187:drug effects; D005459:Fluorides / Q000494:pharmacology*; D007773:Lactates / Q000096:biosynthesis*; D007778:Lactobacillus / Q000187:drug effects / Q000378:metabolism*; D008965:Molasses; D009153:Mutagens; D000644:Quaternary Ammonium Compounds / Q000494:pharmacology*
D064751:Ammonium Compounds; D007773:Lactates; D009153:Mutagens; D000644:Quaternary Ammonium Compounds; D002110:Caffeine; C024822:ammonium fluoride; D005459:Fluorides