Kvasny Prumysl, 1980 (vol. 26), issue 7
Binding zoning for farms growing malting barley.Peer-reviewed article
Z. VOŇKA
Kvasny Prum. 1980; 26(7): 145-148 | DOI: 10.18832/kp1980022 
Plans which have been recently elaborated for zoning the production of malting and feed barley take into account soil and climatic conditions, concentration of proteins in corns and average yields of high quality products. In districts with favourable conditions up to 50 % of barley harvest can be used for malting the proportion in other barley growing districts being roughly 30 %. In feed barley growing destricts special attention must be paid to factors contributing to an efficient biosynthesis of proteins (agrotechnical measures, selection of genotypes) and improving thus nutritive value of feed. Calculations show that through specialization and...
Research works of effects due to the presence of foreign matters in melting barley, malt and beer.Peer-reviewed article
G. ONDRÍŠEKOVÁ, V. SEĎOVÁ
Kvasny Prum. 1980; 26(7): 149-151 | DOI: 10.18832/kp1980023
From the start of research works on the problem: ,,Effects of chlorinated insecticides present in barley and other products used in brewing industry", i. e. from 1977, altogether 74 samples of malting barley, malt, sweet wort, hopped wort and beer have been analyzed. The results are compared to limits specified in regulations for DDT and its metabolites and also for HCH. It has been established that roughly 4 % of the total amount of applied chlorinated insecticides present in barley is transferred to beer. In the next stage of research works several barley growing districts will be selected for systematic analyses of residual chlorinated insecticides...
Intensification and optimization of processes applied in industries cultivating microorganisms.Peer-reviewed article
V. ŠIMEK
Kvasny Prum. 1980; 26(7): 152-156 | DOI: 10.18832/kp1980024
The article deals with some problems connected with the cultivation of microorganisms on an industrial scale, especially with the recirculation of medium and intensification of processes, i. e. with problems touched already in [1, 2]. In the first part of the article the author outlines specific features of cultivation in plants with full-scale circulation of medium. Mass balance resulting from biochemical processes taking place in fermenters is calculated both for cultivated microorganisms and other components. Concentration changes of components are time dependant and can be described by exponential formulae. In the second part limits of intensification...
Cultivation of Candida utilis in ethanol substrate. Part V. Effects of some bio-elements on yeast propagation in an installation scaled down to 1/4 of normal size.Peer-reviewed article
J. RYBÁŘOVÁ
Kvasny Prum. 1980; 26(7): 156-160 | DOI: 10.18832/kp1980025
Experiments carried out with cultivation of Candida utilis yeast in an installation scaled down to 1/4 of normal size have shown a positive influence of ferric and calcium salts added to ethanol used as a substrate toyeeher with a higher concentration of magnesium sulphate. It has been established that beside the amounts of Ca and Fe added to substrate, very important is also their proportion to one another (in weight units). The best results ensures the following composition of the substrate: Ca : Fe = 20 : 1, concentration range for Ca from 64 to 108 mg/l, for Fe from 3,2 to 5,4 mg/l. The amount of magnesium should be increased by 10,6 mg/l. By adding...