Kvasny Prumysl, 1986 (vol. 32), issue 4
Metals in malt II. Quantity of metals in malt and their balance during malting.Peer-reviewed article
V. KELLNER, P. ČEJKA, F. FRANTÍK
Kvasny Prum. 1986; 32(4): 73-76 | DOI: 10.18832/kp1986014 
The contents of 15 metals in products of Czechoslovak Malting-Houses that exports malt were determined in the first part of study. The concentrations were in usually published extents, in the case of Al, Ca, Fe, K were lower with Na higher than those found in the foreign studies. The study of the mass balance of metals during malting showed that a significant accumulation of the majority of metals is in the buds (with the exception if Mg). The highest accumulation was observed with Cu (an increase to 366.6 %). Comparing barley with the final product the contents of 4 metals (Ca, Cr, Fe, Zn) increased, with 2 metals (Sr, Cu) remained unchanged and with...
Two models of beer foam decoposition.Peer-reviewed article
J. ŠAVEL
Kvasny Prum. 1986; 32(4): 76-78 | DOI: 10.18832/kp1986015
Two models of the beer foam decomposition are described in the article. The first classic model describes a change to foam A to beer C according to the equation . The second extended model uses the assumption that foam A is converted to beer B. Beer B is freely presented in foam at then drops down below the foam like the beer C ( ). The kinetic solutions of both the models are described. The experiments confirmed the validity of the extended model while the classical model described only a part of the decomposition curve of the foam. The significance of the extended model of the beer foam decomposition for a measurement of the foam stability is discussed.(In...
Chilling and beer output. IV. Chilling of rooms.Peer-reviewed article
A. KRATOCHVÍLE
Kvasny Prum. 1986; 32(4): 78-80 | DOI: 10.18832/kp1986016
The contribution is connected with the part III published in the issue of No. 3/1986. The article contains the opening chapter of the chilling of technological rooms. The individual parts of the technological heat that affects temperature regimes of chilled rooms in the brewery are described.(In Czech, English summary only)
Example of innovation fermentation equipment.Peer-reviewed article
L. CHLÁDEK
Kvasny Prum. 1986; 32(4): 80-84 | DOI: 10.18832/kp1986017
The reconstruction of the main function parts of the nonapplicable fermenter is described in the article. The new construction of air sterilization its dispergation into the medium, the heating and cooling of the medium, the oxygen measurement using the balance method and the proble with zirconium oxide, the mechanical foam separator.(In Czech, English summary only)
Estimation of hydrolysis of lignocellulosics by thermophilic bacteria.Peer-reviewed article
D. LONGAUEROVÁ, D. HALAMA, V. LUŽÁKOVÁ
Kvasny Prum. 1986; 32(4): 84-86 | DOI: 10.18832/kp1986018
Corncobs coarsely cut without other pretreatment was suspended in pH 6.8 phosphate buffer, and inoculated by 10% volume of mixed thermophiles under (semi-) anaerobic conditions at60 °C. After 6 days cultivation the most part of oligomers was utilized by bacteria, and polysaccharides partially decomposed to oligomers, as shown by gel permeation analysis (GPC). The most part of hemicellulose (as estimated by mild hydrolysis as reducing sugars) was utilized. The residual material after thermophilic treatment was more accessible (in comparision with original one) to mesophilic mixed rumen flora.(In Slovak, English summary only)
Application of new types of flocculating additives in biotechnology.Peer-reviewed article
V. SITKEY
Kvasny Prum. 1986; 32(4): 86-87 | DOI: 10.18832/kp1986019
The removal of cellular and solid materials from fermentation broths is of importance in many fermentation processes. Polyelectrolyte flocculation additives have been found superior to the traditionally used inorganic salts. The paper brings a short survey on the different types of polyelectrolyte flocculating additives and deals with criteria for the choice of flocculating additives appropriate for using in the fermentation industry.(In Slovak, English summary only)
Analysis of possible utilization of automatic systems of scientific information for biotechnology development.Peer-reviewed article
R. BUREŠ
Kvasny Prum. 1986; 32(4): 88-90 | DOI: 10.18832/kp1986020
The article discussed possibility of exploitation of referral information sources for biotechnology. The primary attention is devoted to computer processing. Also is briefly discussed possibility of their use for prognosis.(In Czech, English summary only)