Kvasny Prum. 1974; 20(2): 25-27 | DOI: 10.18832/kp1974004

Correlation of two methods used in brewing industry for the determination of wild yeast.Peer-reviewed article

J. ŠAVEL, M. PROKOPOVÁ

The article deals with the correlation of results obtained by applying for the determination of wild yeast two different methods generally used in brewing industry, viz. Crystal violet method and monoiodo-acetic acid one. Common technique used at present is inoculation and propagation of pure strains of wild yeast in both mentioned substrates. The authors present a new method permitting to decide, whether the correlation established in the mentioned way fits the results of actual analyses. The method is based on the Lederberg replica plating technique, originally developed for the isolation of mutants. The study shows that only for a small number of analyzed samples the correlation of results obtained by employing two mentioned methods [inoculation of pure strains of wild yeast and propagation in two different substrates] has the character of total disjunction.
(In Czech, English summary only)

Keywords: brewing industry, wild yeast, determination

Published: February 1, 1974