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ENTEROBACTER AGGLOMERANS —A NEW BACTERIAL CONTAMINANT ISOLATED FROM LAGER BEER BREWERIES
Author(s) -
Vuuren H. J. J.,
Kersters K.,
Ley J. De,
Toerien D. F.,
Meisel R.
Publication year - 1978
Publication title -
journal of the institute of brewing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.523
H-Index - 51
eISSN - 2050-0416
pISSN - 0046-9750
DOI - 10.1002/j.2050-0416.1978.tb03898.x
Subject(s) - brewing , enterobacter , food spoilage , biology , enterobacteriaceae , bacteria , fermentation , yeast , bacterial strain , microbiology and biotechnology , food science , escherichia coli , biochemistry , genetics , gene
From a large number of bacterial strains isolated from all stages of the brewing process in four different beer breweries in South Africa, fifty‐five bacterial strains were identified as Enterobacteriaceae by phenotypic analysis. All enterobacterial species previously reported in brewery samples, as well as eighteen strains of Enterobacter agglomerans were found. E. agglomerans strains were isolated from pitching yeast and fermenting wort samples. The occurrence of E. agglomerans in pitching yeast is significant and indicates that these bacteria survive the brewing process. E. agglomerans is regarded as a potential beer spoilage contaminant in lager beer breweries.