Kvasny Prumysl, 1971 (vol. 17), issue 4
Experience with wet method of malt crushing.Peer-reviewed article
J. CUŘÍN, V. ČERNOHORSKÝ
Kvasny Prum. 1971; 17(4): 73-77 | DOI: 10.18832/kp1971015 
Wet crushing is a method differing substantially from conventional crushing and requires, therefore modifications in technology. From the results of their own experiments the authors estimate, that by introducing this method the time required for mash filtering can be reduced by much as 27%. The clarity of wort and grains is somewhat lower than normal, which is due to higher percentage of sludge in wort. No difference could be zraced in yield and composition of wort. The authors evaluate the outlooks of the method in Czechoslovak brewing industry.(In Czech, English summary only)
Surrogates and enzymatic preparations in brewing industry.Peer-reviewed article
G. BASAŘOVÁ
Kvasny Prum. 1971; 17(4): 78-81 | DOI: 10.18832/kp1971016
The authoress compares various opinions on the question of malt surrogates and their application in brewing industry, as published in technical journals abroad. She outlines specific features of mashing technology which must be taken into account when surrogates and enzymatic preparations with alpha-amylolytic, proteolytic and cytolytic effects are used. Technology developed for preparing barley extracts and syrups is described in detail. Despite serious attention which is being paid to the problem of surrogates, many important questions are still open.(In Czech, English summary only)
Effect of air through-flow upon the oxygen transfer in fermantation plants.Peer-reviewed article
Z. AUNICKÝ, F. ŠTROS, R. ZÁBOJNÍK
Kvasny Prum. 1971; 17(4): 84-91 | DOI: 10.18832/kp1971017
The article deals with the results of experimental research works into the effects of air through works into the effects of air through-flow upon the oxygen transfer in fermentation plants. The authors have used for their experiments the models of fermenters of the 0,3 m3, 10 m3and 75 m3capacities. The research works cover both plants with pneumatic agitating systems. The intensity of oxygen dissolving was determined by using polarographic and sulphite methods. The authors discuss the effects of peripheral velocity of agitators, their diameter and air flow rate upon the oxygen transfer in plants with mechanical agitation.(In...