Kvasny Prumysl, 1961 (vol. 7), issue 7
Direct quantitative determination of polypeptides in beer.Peer-reviewed article
J. HUMMEL
Kvasny Prum. 1961; 7(7): 145-152 | DOI: 10.18832/kp1961023 
The article shows, that polarographic methods can be successfully applied for direct quatitative determination of polypeptides in beer to be delivered from breweries. The test is based upon the comparison of a standard sample with samples of beer of the same strength. The article deals further with the quatitative changes effecting polypeptides at processing beer with ammonium sulphate, with polyptides in samples taken during stabilization tests, with effect of the diatomite composition, of sorption earths and filtration upon polypeptides in 8 ˚ beer. Direct Brdička reaction can be used for determining the intensity of colloidal stabilization....
Non-alcoholic and low-alcoholic beer.Peer-reviewed article
F. HLAVÁČEK, G. KLAZAR
Kvasny Prum. 1961; 7(7): 152-155 | DOI: 10.18832/kp1961024
The authors describe several brewing processes recommended for manufacturing non-alcoholic and low-alcoholic beer. They compare and evaluate various prescripts taking into the picture their own experience, results of tests and information from other available sources. The conclusions indicate that for the time present preference should be given to technology based on interrupting main fermentation or afterfermentation, which results in obtaining beer with low alcohol content. Organoleptic tests indicate that beer of good taste containing from 0,35 % to 0,40 % of alcohol can be produced from 4 ˚ wort.(In Czech, English summary only)
Effect of harvester-threshers upon mechanical damage of barley.Peer-reviewed article
Z. ŠAUER
Kvasny Prum. 1961; 7(7): 156-160 | DOI: 10.18832/kp1961025
The article deals with the results of studies aimed at finding the relation between the adjustment of threshing drum and the proportion of mechanically damaged corns of barley harvested with combine harvesters. Two different moisture contents, viz. 20 % and 25 % were compared. The proportion of corns showing signs of mould was higher in barley with higher moisture content. There is a marked direct proportionality between the mechanical damage and mould development. Barley containing only 20 % of moisture, but heavily damaged, has been found to posses minimum germination power. Higher peripheral speeds of drum cause more damage than smaller clearances...