Kvasny Prumysl, 1964 (vol. 10), issue 10
Division of sulphur containing beer albumins.Peer-reviewed article
J. HUMMEL
Kvasny Prum. 1964; 10(10): 217-219 | DOI: 10.18832/kp1964030 
The article deals with the research works studying beer albumins and their influence upon the quality of the product. Chemical fractionation, as also polarographic registration have been employed for classification. Correlations existing between the decomposition of glycidic components, changes of surface activity and composition of albumins on one hand and deterioration of frothing properties on the other hand are analysed and discussed.(In Czech, English summary only)
New trends in the classification of malting barley.Peer-reviewed article
M. TRKAN
Kvasny Prum. 1964; 10(10): 221-222 | DOI: 10.18832/kp1964031
The author shows, that it is necessary to supplement existing criteria applied for the classification of malting barley with several new ones. First of all it is necessary to indicate the sensibility of barley to water and its absorbing capacity, since these properties determine to a certain degree the behavior of barley during malting. In chemical analyses more attention should be paid to the fractionation of proteins and splitting of hordein.(In Czech, English summary only)
Checking the efficiency of cooling installations in breweries.Peer-reviewed article
T. KAŇA
Kvasny Prum. 1964; 10(10): 223-226 | DOI: 10.18832/kp1964032
The article deals with a simple method which has been developed for ascertaining the efficiency and economy of cooling equipment installed in a brewery. It is based on the comparison of actual electric energy consumption, calculated from the results of measurements, with nominal values, rated for the installation in question. Owing to its simplicity the method is suitable for routine application. The author explains the main causes of differences, deteriorating the efficiency, and suggests remedies.(In Slovak, English summary only)
Transistorized contactless froth killer metering device.Peer-reviewed article
Z. ČÁSLAVSKÝ, J. HOSPODKA
Kvasny Prum. 1964; 10(10): 227-230 | DOI: 10.18832/kp1964033
The article deals with a transistorized, contactless device for metering froth killers, which has recently been developed and tested with outstanding success. The principal element of the device is a three-step transistorized amplifier in theDarlingtonarrangement. The end transistor can switch either a 24 V solenoid valve [12 W] or any other metering mechanism introducing froth killing agent into the fermenting substance. The froth level is indicated by two electrodes. The amplifier is enclosed in a resin shell protecting it positively against corrosion. By incorporating the described device some 40 % of froth killing fat could be saved.(In Czech,...