Saccharomyces pastorianus ssp

Figure 5.1 Description of Saccharomyces pastorianus ssp. carlsbergensis TUM 34/70, a bottom-fermenting lager yeast strain, in terms of fermentation parameters, beer-quality parameters, and aroma.

Contamination by all relevant Saccharomyces sensu stricto species can be detected directly in Saccharomyces pastorianus ssp. carlsbergensis brewing yeast containing beer or starter cultures with the exception of Saccharomyces bayanus/eubayanus/ pastorianus contaminations. For this specific problem, an additional quantitative approach, which is shown in Figure 5.6, can be implemented. 

Figure 5.8 Saccharomyces pastorianus ssp. carlsbergensis TUM 34/70 in a Thoma cellcounting chamber, which is counted following the arrows over 16 small grid squares.

Figure 5.9 Microscopic picture of Saccharomyces pastorianus ssp. carlsber-gensis TUM 34/70 cells stained with DAPI (blue, living cells) and propidium iodide (red to purple, dead cells).

---