Kvasny Prumysl, 1981 (vol. 27), issue 2


Technologic factors affecting filterability of beer.Peer-reviewed article

J. VOBORSKÝ, G. BASAŘOVÁ

Kvasny Prum. 1981; 27(2): 25-29 | DOI: 10.18832/kp1981005  

Evaluating their own experience and information published in available literature, the authors analyze various factors deteriorating the filterability of beer. Their study covers properties of raw materials, brewing processes, fermentation, post-fermentation and filtering technology. Several measures are suggested which can contribute to better filterability of beer.(In Czech, English summary only)

Effects of carbon dioxide on some beer components.Peer-reviewed article

J. HLAVÁČEK, J. ©ROGL, J. PESLER

Kvasny Prum. 1981; 27(2): 29-32 | DOI: 10.18832/kp1981006  

Long lasting washing of beer or wort with carbon dioxide results in the separation of protein-isohumulone complex from the processed product. It is separated in a solid form and processes taking place are similar to those forming caps on fermenting beer and in following stages of brewing processes. By washing beer or wort with CO2 it is possible to eliminate all bitter resins bound with some macromolecular protein fractions. The mentioned components can be thus isolated. Washing with carbon dioxide has also very marked effects upon the rheologic properties of beer and wort. Surface tension is higher, whereas frothing power is reduced.(In...

A new malting plant producing 50 000 t of malt p. a. has been put into service in Poland.Peer-reviewed article

J. MITROCKI

Kvasny Prum. 1981; 27(2): 33-34 | DOI: 10.18832/kp1981007  

The article deals with the equipment of a new malting plant, which has been built at Sirpce inPoland. Its capacity is 50 000 t of malt per annum and its project has been worked out in West Germany by a specialized firm, viz. C. Seeger. The equipment is of well-provene type with the Saladin malting Boxes and one-floor kiln. Special attention has been paid to maximum, possible concentration of all technologic installations, to automation of principal processes and to short distances in material flow scheme.(In Czech, English summary only)

Ultra-filtrating plant developed in the research Institute of Distilling and Canning industry (VU LIKO) and results achieved in the Dolna Krupa factory, where it has been employed to concentrate and purify fermentation substrate used for making a preparation called Bolamylasa.Peer-reviewed article

P. BROKE©, V. VI©ECKÝ, B. BORČIN, V. HLAVAČKA, O. KUBICA, M. SVORKA

Kvasny Prum. 1981; 27(2): 39-44 | DOI: 10.18832/kp1981008  

By using ultra-filtration it is possible to concentrate and at the same time purify solutions of enzumes without deteriorating their activity. An ultra-filtering unit developed in the Research Institute of Distilling and Canning Industry (VÚ LIKO) has been employed in the Dolná Krupá plant to concentrate and purify the solution of ,,Bolamyláza", a preparation used in food industry. A number of changes have been gradually introduced into the design of this ultra-filtrating unit to improve its parameters and increase its capacity. Effects of design and duration of the operation upon the concentration degree are assed. In its final form the VU LIKO ultra-filtrating...