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Studies on the fed-batch propagation of brewer's yeast in high gravity wort

Includes bibliographical references. / The traditional batch brewing process is characterised by serial yeast propagation to build sufficient yeast for pitching. This results in cyclic variations in yeast environment, leading to a slow brewing process. In high gravity brewing the carbohydrate utilisation is inefficient as a result of the Crabtree effect that occurs in the presence of high sugar concentration. When optimising the brewing process the characteristics of conventional batch brewing should be maintained. Fed-batch propagation of yeast is used to improve carbohydrate utilisation and the yeast biomass formation by controlling nutrient supply.

Identiferoai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:uct/oai:localhost:11427/9751
Date January 2001
CreatorsZizhou, Njodzi
ContributorsHarrison, STL
PublisherUniversity of Cape Town, Faculty of Engineering and the Built Environment, Centre for Bioprocess Engineering Research
Source SetsSouth African National ETD Portal
LanguageEnglish
Detected LanguageEnglish
TypeMaster Thesis, Masters, MSc
Formatapplication/pdf

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