In beverage industries yeasts are considered as spoilage yeasts on the one hand and on the other hand they are of importance as starter cultures for fermented alcoholic beverages. In this study real-time PCR assays, PCR-DHPLC methods, sequencing methods and FT-IR spectroscopy methods were being developed, optimised and transferred to the microbiological analysis of beverages with the aim to identify and differentiate beverage-relevant yeasts. A combination of sequencing methods, real-time PCR assays and FT-IR spectroscopy methods enabled the identification (on species level) of 363 isolated strains from 53 species. The isolates originated from breweries, beverage companies and starter cultures. For the first time Saccharomyces kudriavzevii was isolated and identified from a brewing environment. Specific real-time PCR assays enable the identification of Saccharomyces sensu stricto species.
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In beverage industries yeasts are considered as spoilage yeasts on the one hand and on the other hand they are of importance as starter cultures for fermented alcoholic beverages. In this study real-time PCR assays, PCR-DHPLC methods, sequencing methods and FT-IR spectroscopy methods were being developed, optimised and transferred to the microbiological analysis of beverages with the aim to identify and differentiate beverage-relevant yeasts. A combination of sequencing methods, real-time PCR as...
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