Investigation on physiological condition of yeast samples from different breweries
For this investigation 63 yeast samples from 25 German breweries have been tested on their viability (methylene blue staining), vitality (measurement of the intracellular pH) and their proteinase A activity in order to get an overview of the situation in breweries. The samples for this investigation were obtained from breweries with production capacities ranging from 50 000 hl up to over 1 million hl.