Kvasny Prumysl, 1980 (vol. 26), issue 4
Ascertaining the concentration of dissolved air oxygen absorbed by beer during bottling process.Peer-reviewed article
J. ©AVEL, J. MO©TEK, M. PROKOPEC
Kvasny Prum. 1980; 26(4): 73-77 | DOI: 10.18832/kp1980011 
The article deals with the changes of amounts of dissolved air oxygen taking place during bottling operations in breweries using pressure air for filtering 12° bright beer, for repumping it into feeding tanks in racking shed and in racking machines. The authors have measured average concentrations of dissolved air oxygen in all final stages of brewing process. To reduce the amount of dissolved air oxygen in beer the authors have developed and successfully used their invention i. e. the so-caaled ,,flow changer" attached to the feeding tank. This attachment permits to reduce the amount of dissolved air oxygen in beer by 0,4-0,5 mg of O2 per1...
Intensification of brewing processes in polish brewing industry.Peer-reviewed article
W. DYLKOWSKI
Kvasny Prum. 1980; 26(4): 77-80 | DOI: 10.18832/kp1980012
The article deals briefly with measures which are being taken in Polish Brewing Industry to intensify all brewing processes. They are introduced stage by stage to realize thus development plans foresseing systematic modernization of equipment and technology. Modernized industry will meet all demands of expanding market.(In Czech, English summary only)
Ways to higher yields of fine spirit and optimization of refining process. Part II.Peer-reviewed article
V. KRUMPHANZL, J. ROSÁK, J. UHER, A. VÁVROVÁ
Kvasny Prum. 1980; 26(4): 80-82 | DOI: 10.18832/kp1980013
To produce fine and superfine spirit from crude alcohol it is necessary to control all phases of distillation. To do so the composition of crude alcohol flowing info distillation plants and of products obtained from them must be well known. The authors have analyzed samples of crude alcohol, fore-run and after-run in two distilleries viz. at Kralupy and Kolín. Both belong to Středočeská Fruta Mochov N. C. Group. Analyses covering samples of crude alcohol, fore-run, after-run and fine spirit permit to draw the following conclusions: - Impurities consists of 11-15 different components. - Their concentrations fluctuate very much the range being from 1:2...
Influence of insecticides and acaricides on the yeast flora of grapes and must.Peer-reviewed article
E. MINÁRIK, P. RÁGALA
Kvasny Prum. 1980; 26(4): 89-94 | DOI: 10.18832/kp1980014
Insecticide and acaricide preparations used in vine protection against insects and mites usually show less pregnant by-effects on yeast and yeast-like microorganisms of fermenting musts compared with those caused by fungicides. Toxic effect may by registered mostly when pesticides were used in higher application concentrations unusual in practice, and/or when short waiting-periods were necessary in vine treatment. Arafosfothion and Dicarban showed the strongest inhibition on yeasts among the tested insecticides and acaricides.(In Slovak, English summary only)