Kvasny Prumysl, 1969 (vol. 15), issue 10-11
Chemism of polyphenol compounds (tanning matters) present in hops and their importance for brewing industry. Part II. Formation of polymers with tanning properties.Peer-reviewed article
J. MOŠTEK
Kvasny Prum. 1969; 15(10-11): 217-222 | DOI: 10.18832/kp1969022 
The author outlines modern views on the chemism of processes resulting in the formation of polymer forms of polyphenol matters used by brewing industry, i. e. essentially of the chemism of tanning matters present in hops. Polyphenol components of hops and malt are important factor of brewing technology, since they determine to a certain degree physical, chemical and organoleptic properties of beer. Specific properties of Czech beer are at this juncture discussed in detail.(In Czech, English summary only)
Predicting colloidal stability of beer.Peer-reviewed article
G. BASAŘOVÁ, M. KAHLER
Kvasny Prum. 1969; 15(10-11): 222-227 | DOI: 10.18832/kp1969023
The article deals with a simplified, rapid shock test, the results of which permit to predict the colloidal stability of beer. The reliability of the method can be seen from the comparison with other known methods. The author has elaborated a new method for evaluating the clarity of sweet congress wort based on a scale of turbidity units measured with nephelometers, as well as for evaluating the clarity of the samples of first wort indicating the efficiency of straining.(In Czech, English summary only)
Experience acquired with organoleptic evaluation of beer quality.Peer-reviewed article
J. CUŘÍN
Kvasny Prum. 1969; 15(10-11): 228-231 | DOI: 10.18832/kp1969024
The authors have modified the Allison - Faison method of organoleptic evaluation of beer, introduced new organoleptic criteria for taste and flavour with three marks for each of them, viz: fully satisfactory, less satisfactory, unsatisfactory. Data can be easily processed and mean arithmetic value calculated. For processing the classification is best expressed in figures, the final evaluation should have a combined form and include both figures and explanatory words. The suggested simplified method was used with very satisfactory results in a large scale market analysis carried out to ascertain the popularity of various sorts of beer.(In Czech,...
Determination of nucleicacids in fodder yeast grown on hydrocarbon substrates.Peer-reviewed article
M. ŠESTÁKOVÁ
Kvasny Prum. 1969; 15(10-11): 232-238 | DOI: 10.18832/kp1969025
The article deals with two methods which can be applied for the determination of nucleic acids in fodder yeast grown on hydrocarbon substrates. The strain used for experiments was C. lipolytica grown in a mineral medium. The spectrographic method can be recommended for routine inspection, as well as for following relative changes in the percentage of nucleic acids in yeast, whereas colorimetric methods should be used for accurate analyses and identification of various acids present in the yeast.(In Czech, English summary only)