PMID: 11916455Mar 28, 2002Paper

Production of non-alcoholic beer using free and immobilized cells of Saccharomyces cerevisiae deficient in the tricarboxylic acid cycle

Biotechnology and Applied Biochemistry
Marián NavrátilPeter Gemeiner

Abstract

Production of non-alcoholic beer using Saccharomyces cerevisiae has been studied. Non-recombinant mutant strains with a defect in the synthesis of tricarboxylic-acid-cycle enzymes were used and applied in both free and pectate-immobilized form, using both batch and packed-bed continuous systems. After fermentation, basic parameters of the beer produced by five mutant strains were compared with a standard strain of brewing yeast. Results showed that the beer prepared by mutant yeast cells was characterized by lower levels of total alcohols, with ethanol concentrations between 0.07 and 0.31% (w/w). The organic acids produced, especially lactic acid, in concentrations up to 1.38 g x l(-1) had a strong protective effect on the microbial stability of the final product and thus the usual addition of lactic acid could be omitted. Application of the yeast mutants appears to be a good alternative to the classical methods for the production of non-alcoholic beer.

Citations

Nov 19, 2010·Journal of Industrial Microbiology & Biotechnology·Pavel Kyslík, Aleš Prokop
May 12, 2010·Forensic Science International : Synergy·Annette ThieraufWolfgang Weinmann
Jul 19, 2002·Yeast
Jun 18, 2002·Artificial Cells, Blood Substitutes, and Immobilization Biotechnology·Marián NavrátilDaniela Smogrovicová

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