Kvasny Prumysl, 2008 (vol. 54), issue 3
Comparison of the content of volatile sulphur-containing compounds in Slovak beers by the SPME method.Peer-reviewed article
Martin ©ULÁK, Daniela ©MOGROVIČOVÁ, Erich LEITNER
Kvasny Prum. 2008; 54(3): 70-74 | DOI: 10.18832/kp2008004 
A comparison of volatile sulphur-containing compounds in Slovak beers was performed. These compounds, due to their low sensory threshold, and powerful and often unpleasant characteristics, can cause off-odours even in trace amounts. A wide variety of sulphur compounds were identified in the beers; the most important ones include dimethyl sulphide, dimethyl disulphide, dimethyl trisulphide, ethanethiol, ethyl thioacetate, methanethiol, methionol, methyl thioacetate, 3-methylthio propylacetate and carbon disulphide. In the first step, adsorption conditions, such as temperature, time, sample volume and addition of salts, were optimised. The content of...
Agronomic parameters and characteristics of old barley varieties under conditions of the forage production area, harvests 2006 and 2007.Peer-reviewed article
Jitka MAREČKOVÁ, Vratislav PSOTA
Kvasny Prum. 2008; 54(3): 75-79 | DOI: 10.18832/kp2008005
In 2006 and 2007 old varieties were grown in one locality in the forage production area under the same conditions as the current varieties. Most old varieties headed even 5 days earlier than the current varieties and the old varieties also achieved full maturity earlier. The current varieties had a higher number of fertile tillers/per m2 and approximately by 2 t/ha higher grain yield. On average, old varieties were higher by 25-30 cm. The current varieties showed higher resistance to lodging, significantly higher resistance to powdery mildew and partly also to brown rust. In net blotch, there were no significant differences between the old...