SELECTIVE MEDIA IN THE ENUMERATION OF BACTERIA IN PITCHING YEASTS
Open Access
- 4 March 1959
- journal article
- research article
- Published by Chartered Institute of Brewers and Distillers in Journal of the Institute of Brewing
- Vol. 65 (2) , 154-164
- https://doi.org/10.1002/j.2050-0416.1959.tb01440.x
Abstract
Examination of representative samples of top yeasts from British breweries revealed invariably the presence of strains of Flavobacterlum proteus, Lactobacillus and Acetobacter and the absence of significant numbers of Pediococcus and other bacteria. Three solid selective media have been developed which permit relatively rapid independent estimation of the numbers of each type present in pitching yeast. Flovobacterium proteus usually constituted 90% or more of the living bacterial population, cells of Lactobacillus and Acetobocter species in about equal proportions accounting for the remainder.Keywords
This publication has 3 references indexed in Scilit:
- Maintenance of Cultures of Industrially Important Microorganisms1Applied Microbiology, 1955
- Studies of lactic acid bacteria associated with brewery products. I.—identification of types isolated from beer and from yeastJournal of the Science of Food and Agriculture, 1954