Kvasny Prumysl, 1958 (vol. 4), issue 3
The bioconductometrical detection of fermentable sugars in brewing.Peer-reviewed article
J. DYR, J. MO©TEK
Kvasny Prum. 1958; 4(3): 50-53 | DOI: 10.18832/kp1958006 
1. With brewers’ yeasts, in most cases, higher quantity of fermentable sugars was indicated than with a chemical detection. The values of the analyses of mash in and saccharified mashes before boiling are the closest. 2. The maximum of easily fermentable sugars (in the same volumes of mashes) in pale brews moves in the scope from 63 to 73 °C. It was confirmed by bioconductometrical tests with brewers’ and bakers’ yeasts and analysis with 100 mg of reducing sugars using only brewers’ yeasts. 3. Of 100 portions of reducing sugars determined chemically, the majority of easily fermentable yeasts indicated by brewers’ yeasts...
Untightness of distilling, refining and dehydrating installations.Peer-reviewed article
B. MELICHAR
Kvasny Prum. 1958; 4(3): 57-60 | DOI: 10.18832/kp1958007
Outflow rates of vapors leaking from distillation, refining and dewatering apparatus were calculated to be significant. A considerable amount of vapors leaks through a relatively small outflow area. Leakage can be reliably detected by compressed air; test with the heating steam is not always exact. Therefore, it is recommended that tightness of all devices in distilleries should be frequently tested with compressed air, especially in places with higher detected losses of ethanol. (In Czech, English summary only)
Elective medium for determining contamination in yeasts plants.Peer-reviewed article
B. BURE©OVÁ, P. ŘACH
Kvasny Prum. 1958; 4(3): 60-64 | DOI: 10.18832/kp1958008
New elective medium is described which has been prepared for detecting contamination of yeasts by geni Candida, Torulopsis, Hansenula, Pichia, Rhodotorula. Propagation of genus Saccharomyces in the new medium is effectively inhibited. No inhibitive additives are therefore necessary. Propagation of germs is restricted and suppressed. The medium based upon the succinic acid anhydride, betein and anorganic salts is suitable for testing pure culture, determining admixed microbes and checking samples of fermentation liquids.(In Czech, English summary only)