Kvasny Prumysl, 1977 (vol. 23), issue 11
Single-phase beer production.Peer-reviewed article
M. KAHLER, T. LEJSEK
Kvasny Prum. 1977; 23(11): 244-249 | DOI: 10.18832/kp1977039 
The article deals with a so called single-phase beer production based on combined fermentation and on secondary fermentation in the same vessel. Applying the large capacity conical-bottomed tanks installed in free area, the equipment of the brewery is simplified and the demanding requirements on the structure of fermenting room time of the fermenting process of 10% and 12% beers by roughly 60 a 65%. For the limitation of the formation off undesirable metabolic products, the correct size of the tank (height, diameter, apex angle of the conical bottom) must be elected and so the effective capacity (the capacity must be adequate to the brew-house and...
Stimulants of feed yeast growth.Peer-reviewed article
A. G. ZABRODSKIJ, V. J. PŠEVORSKAJA, V. A. LUPAŠKO
Kvasny Prum. 1977; 23(11): 255-257 | DOI: 10.18832/kp1977040
The authors have experimentally tested the efficiency of several yeast growth stimulants applying as a criterion their influence upon the growth dynamic of yeast Candida utilis cultivated in a shaker and laboratory fermentors on stillage distillery slops from molasses distillery. The following preparations were used as stimulants: destiobiotin, gibberellic acid and a special compound containing trace elements. All of them are used as stimulants by plants making bakery and feed yeast cultivated on molasses, hydrolysates and paraffins. No effects of the mentioned stimulants could be observed on the amount of produced biologic mass of Candida utilis or...
Design and properties of a new multi-stage tower fermenter.Peer-reviewed article
J. PÁCA
Kvasny Prum. 1977; 23(11): 257-261 | DOI: 10.18832/kp1977041
A new multi-stage tower fermenter, which has been recently developed, is characterized by unit construction, parallel flow of liquid and gaseous phases and mechanical mixing system. It consists of five stages separated by perforated plates. Each stage is fitted with two disc type turbine impellers and auxiliaries intensifying mixing are regulated in each of the stages individually. A series of experiments have been carried out to evaluate hydrodynamic behavior of the system and to study its components, i.e. pressure gradient, gas holdup efficiency, coefficient of back flow between stages, oxygen transfer rate in various stages and its relation to the...