Kvasny Prumysl, 1976 (vol. 22), issue 4
Effects of polyphenols upon analytic criteria evaluating quality of malt.Peer-reviewed article
H. VRTÌLOVÁ, A. DOLE®ALOVÁ
Kvasny Prum. 1976; 22(4): 73-76 | DOI: 10.18832/kp1976013 
A series of experiments has been carried out to study the effects of albumen content, barley modification, variety of barley and soil and climatic conditions upon the content of polyphenols and tannoids. Tannoids-albumins relationship for barley was calculated by applying correlation calculus. Very significant correlation coefficients have been found for barley of several different harvest years. The content of polyphenols depends also on the content of albumins. During modification process tannoids are liberated and simultaneously some other analytic criteria are influenced, especially the Kolbach number and RE 45°C. Through steeping the content of...
Effects of agronomic methods upon the quality of malting barley.Peer-reviewed article
M. HLAVINKOVÁ
Kvasny Prum. 1976; 22(4): 80-81 | DOI: 10.18832/kp1976014
The results of a comprehensive series of field trials show that excessively high rates of nitrogenous fertilizers have negative effects upon the properties of barley and malt. Yields depend on many factors, especially on weather conditions in vegetation period and high rates of nitrogen cannot be always effective. Under certain conditions, which were e.g. given in 1972, nitrogen even lowered the yields. In 1973 high rates of nitrogenous fertilizer have practically no positive effects. Trials lasting there years confirm that high rates of nitrogen, especially if the fertilizer is applied at two different vegetation stages, the later of which is the...
Application of automatic gas analyzers in fermentation industry and research institutes.Peer-reviewed article
M. RUT, F. MADRON
Kvasny Prum. 1976; 22(4): 84-87 | DOI: 10.18832/kp1976015
The article deals with the application of automatic gas analyzers in fermentation industry and research institutes for controlling fermentation processes. The authors outline the measuring principles and describe several available types which can used to control gases escaping during fermentation processes. An example shows, how an analyzer can help to control the mass balance in plants producing single cell proteins from synthetic ethanol.(In Czech, English summary only)
Effect of herbicide on the yeast flora of fermenting musts.Peer-reviewed article
E. MINÁRIK, P. RÁGALA
Kvasny Prum. 1976; 22(4): 88-91 | DOI: 10.18832/kp1976016
Long term experiments on the by herbicides applied for weed control in vineyards on the yeast flora of grapes and of spontaneously fermenting must showed, that the majority of herbicides have no or only very slight inhibiting effects on the development on the yeast flora, no matter, whether herbicides are used only occasionally or systematically. Herbicides on the basis of urea, triazine and mixed triazine herbicides behave neutral. From the group of chloro-thiamide herbicides only "PREFIX " - if not buried into the soil - showed inhibiting effects on sporeforming yeast species. Herbicides based on dichlobenil display slight suppressing effects on...