Kvasny Prumysl, 2004 (vol. 50), issue 7-8
Wort sugars uptake rate and cell cycle of brewing yeast. II. Cell cycle of three brewing yeast strains during pilot plant fermentation.Peer-reviewed article
Jan NOVÁK, Gabriela BASAŘOVÁ, Jaromír FIALA
Kvasny Prum. 2004; 50(7-8): 214-217 | DOI: 10.18832/kp2004013 
The objective of this work was to study the cell cycle of three strains of lager yeast in relation to the number of elevated cells in wort and utilization of main wort sugars.Yeast strains No. 2, 7 and 95 (marked in accordance with RIBM 655 - Culture Collection of Brewing Yeasts) were used in the study. The experiments were carried out in pilot plant scale fermenter at the temperature of 13 °C. The original gravity of wort was 12 % and the malt in grist was partly substituted by unmalted barley. During pilot plant fermentation were observed differences between the studied strains in rise number of elevated cells in wort. The strain No. 7 showed the...
Qualitative aspects of siliceous sols and gels.Peer-reviewed article
Klaus NIEMSCH
Kvasny Prum. 2004; 50(7-8): 218-220 | DOI: 10.18832/kp2004014
The article describes the history of development of siliceous sols and gels used for hopped wort clarification and for improving of beer colloidal stability. The role of Dr. Raible is mentioned in the article, who used siliceous gels as the first person for increasing beer colloidal stability and his method was patented in Germany and all around the world by company Stabifix Brauerei Technik. Further, the production of siliceous gels and sols, measurement methods for determination of their physical properties, the use of Malvern's diagram and BET equation for the evaluation of measured values are described. In the conclusion of the article, possibilities...
Supplementation to the MRSMedium for the Cultivation of Fastidious Beer Spoilage Bacteria.Peer-reviewed article
André GILLET, Marie-Hélène DUPUCHE, Nicolas VELINGS
Kvasny Prum. 2004; 50(7-8): 221-223 | DOI: 10.18832/kp2004015
With the new medium, we can easily cultivate and count some of the most fastidious bacterial beer spoilers, at last strains coming from collections. However, these results give to us a hope to get good performances for the retrieving of the native strains from spoilt beer or yeast. In that case, it will be necessary to add an inhibitor for yeast overgrowing, with the hope that the supplemented medium will retains its good performances for the detection and the growing of spoiling bacteria.With the new medium, we can easily cultivate and count some of the most fastidious bacterial beer spoilers, at last strains coming from collections. However, these...
History of breeding in the territory of the Czech Republic. Part II.Not peer-reviewed article
Ing. František RŮŽIČKA CSc.
Kvasny Prum. 2004; 50(7-8): 234-235 | DOI: 10.18832/kp2004016
The submitted contribution describes the development of breeding in the Czech Republic from the first half of the 19th century to the present. Political and agronomical factors affecting barley breeding are briefly characterized. Attention is devoted mainly to the malting barley varieties that were bred during the followed period. The varieties Proskowetz Hana Pedigree, Kneifl9s barley, Valtický and Diamant became donors of the malting quality for many other Czech and foreign varieties of malting barley.(In Czech, English summary only)