In this work, a cost-efficient process to improve the flavor of lactic acid fermented malt-based beverages was developed. Limiting factors of flavor in lactic acid fermentation were investigated and described in depth. Combination of high-gravity fermentation with optimized amino acid supply and fed-batch fermentation with reduced temperature maintained lactic acid bacteria viability, which significantly increased ester and key aroma compounds formation during maturation process. This resulted in a better accepted flavor profile.
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In this work, a cost-efficient process to improve the flavor of lactic acid fermented malt-based beverages was developed. Limiting factors of flavor in lactic acid fermentation were investigated and described in depth. Combination of high-gravity fermentation with optimized amino acid supply and fed-batch fermentation with reduced temperature maintained lactic acid bacteria viability, which significantly increased ester and key aroma compounds formation during maturation process. This resulted i...
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