The focus of this work was the influence of different yeast strains and technologies on the aroma spectrum of wheat beer. The formation of aroma compounds was examined among others by gene expression measurements of the five most frequently used yeast strains. For this purpose, the genes ATF1, ATF2, BAT1, IAH1 and PAD1 were tested. Another aspect was the relative volatility of wheat beer flavor compounds with regards to the losses during fermentation. This work considers the build-up of aroma compounds as well as potential losses by degassing, flash-pasteurization or beer storage.
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The focus of this work was the influence of different yeast strains and technologies on the aroma spectrum of wheat beer. The formation of aroma compounds was examined among others by gene expression measurements of the five most frequently used yeast strains. For this purpose, the genes ATF1, ATF2, BAT1, IAH1 and PAD1 were tested. Another aspect was the relative volatility of wheat beer flavor compounds with regards to the losses during fermentation. This work considers the build-up of aroma co...
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