Kvasny Prumysl, 1981 (vol. 27), issue 5
Microorganisms in malting industry. Part III. Brown tips on barley kernels.Peer-reviewed article
K. KOSAŘ
Kvasny Prum. 1981; 27(5): 100-103 | DOI: 10.18832/kp1981016 
Mycoflora of barley varieties grown in Czechoslovakiais both by qualitative and qualitative criteria the same as that of foreign varieties. All analyzed samples of 1978 harvest had quite satisfactory microbiologic quality, despite high percentage of kernels contaminated by microscopic fungi belonging to Alternaria, Cladosporium and Epicoccum kinds. All these moulds are of no importance for malting industry. Moulds present on samples in question infested not only husks, but also outer layers of kernels without damaging germs. Disinfectants - even very strong ones had no effects on the composition of microflora. Red colour of kernels is due to the presence...
How to minimize effects of fuel shortage on breweries and malt houses. Secondary sources of energy.Peer-reviewed article
S. BAXA
Kvasny Prum. 1981; 27(5): 104-107 | DOI: 10.18832/kp1981017
Energy is becoming rapidly the most important limiting factor of further development of many branches of national economy. To satisfy increasing energy consumption it is necessary to mobilize all existing reserves, rationalize manufacturing processes and utilize secondary sources of energy. The article deals with a number of problems which must be given due priority, as: Collecting information on energy and heat consumption in breweries and malt houses, Inspection of installations and comparison of their efficiency. Efficiency of various types of brew houses and malt kilns. Comparison of their specific heat consumption. Reduction of heat consumption...
The RS gravity brewhouse in the Nošovice.Peer-reviewed article
V. NOHEL
Kvasny Prum. 1981; 27(5): 107-110 | DOI: 10.18832/kp1981018
The autor describes the principles and design of the RS gravity brewhouse, as well as experience acquired during its operation. The brewhouse was designed by Potravinoprojekt inBrnoand built 10 years ago by ZVÚ Works at Hradec Králové. Experience acquired in 10 years confirms that the RS system has many important advantages over conventional brewhouses of the same capacity and in its principles represents a modern solution.(In Czech, English summary only)
Stimulation of yeast growth by ammoniacal extract derived from produced biomass. Part II. Circulation of some components of yeast cell during aerobic synthesis of biologic mass from ethanol.Peer-reviewed article
M. RUT, F. ŠTROS
Kvasny Prum. 1981; 27(5): 110-113 | DOI: 10.18832/kp1981019
The by product in the process of separation of nucleic acids from yeast biomass produced on synthetic ethanol is ammoniacal extract. This solution contains very active compounds having favourable effects upon the biosynthesis of yeasts. Some of them stimulate growth, others are important sources of carbon and nitrogen. Stimulation during batch cultivation is manifested in the 3,4 % increase of yield coefficient, while in continuous cultivation the increase is up to 10,3 %. After evaluation of the process when biomass with decrease content of nucleic acids is produced, it is evident, that weight losses of product caused by extraction are fully compensed...
Influence of phosphate on antibiotics biosynthesis.Peer-reviewed article
N. MARČANOVÁ, P. PILÁT
Kvasny Prum. 1981; 27(5): 113-116 | DOI: 10.18832/kp1981020
The article summarizes the present knowledge about the phosphate effects on the secondary metabolites biosynthesis, above all antibiotics. From the point of view of general kinetics both the analysis of processes mentioned and the differentiation to the growth and production phases are made. The relation between those phases and its beeing. influence by the phosphate level are discussed. According to literature data und our results the work endeavours to bring the survey about the metodology and the effects on the parts of the entire antibiotics producers metabolism in connection with the effect of phosphorus level in the medium and cells. The effect...