Kvasny Prumysl, 1962 (vol. 8), issue 3


Disinfection technique in breweries.Peer-reviewed article

A. LHOTSKÝ

Kvasny Prum. 1962; 8(3): 49-54 | DOI: 10.18832/kp1962007  

The article deals with the present level of disinfecting technology in breweries and evaluates the efficiency of various, currently used, chemicals. The theoretic part of the article is based upon F. Weinfurtner9s theory as applied by him to disinfecting agents. Their efficiency is expressed by diagrams indicating the interrelasolution, time and results. In the practical part of the article are formulae for calculating rates and concentrations presented and explained. The concluding paragraphs discuss some new ideas in the mechanization of disinfecting and cleaning operations.(In Czech, English summary only)

Application of additives based on trace elements in yeast fermenting technology.Peer-reviewed article

E. PÍŠ

Kvasny Prum. 1962; 8(3): 56-58 | DOI: 10.18832/kp1962008  

The article dealst with the results of long-duration experiments with the application of two additives, viz. STOPYNAL and MEB-49, based on trace elements, in yeast fermenting technology. The results confirm a positive effect of the mentioned preparations upon the yeast quality. The proportion of additives should be kept within the 1:5000 - 1:7000 limits. No effect upon the yield of yeast has been till now ascertained.(In Slovak, English summary only)

Improving the stability of wine with cation exchange agents.Peer-reviewed article

J. KRUMPHANZL, J. DYR, R. ZÁBOJNÍK

Kvasny Prum. 1962; 8(3): 58-62 | DOI: 10.18832/kp1962009  

The article deals with the properties of the Czechoslovak, as well as foreign cation exchange resins and with their effect upon the stability of wine and its resistance against metallic and crystalic turbidity. Changes of chemical composition of wine and its organoleptic properties after treatment with cation exchange resins have been studied together with the stability. The best results were observed with the Czechoslovak resin "S" and with the foreign resins DOWEX 50 and ZEROLITH 225. Reduction of iron, copper and potassium contents in the treated wine is taken as a criterion of the resin efficiency.(In Czech, English summary only)