A differential procedure for bacteriological studies useful in the fermentation industry

A synthetic differential medium was developed containing antibiotics capable of inhibiting the growth of yeast without effect on bacteria usually encountered in industrial fermentations, in particular in brewing, alcohol fermentation, and the production of baker's yeast.The differential medium and technique represent an excellent method for investigating the nature and number of viable bacteria in various fermentation materials. Results obtained on baker's yeast, distillery mashes, etc., are reported.