Kvasny Prumysl, 2010 (vol. 56), issue 9


Possibilities of Utilization of Modern Sample Preparation Methods for Gas Chromatographic Analysis of Beverages and Especially beer.Peer-reviewed article

Tomáš HORÁK, Jiří ČULÍK, Marie JURKOVÁ, Pavel ČEJKA, Vladimír KELLNER, Josef DVOŘÁK, Danuša HAŠKOVÁ

Kvasny Prum. 2010; 56(9): 358-366 | DOI: 10.18832/kp2010038  

Gas chromatography plays a significant role in the determination of flavours whose content is important not only for monitoring the quality of final product but also when testing new technological procedures. Sample preparation procedures including extraction, concentration and clean-up are often necessary before gas chromatographic determination. In the past two decades, numerous sample preparation techniques have been introduced that can gradually supersede the current classical methods. These procedures include offline and on-line methods and they are based on thorough extraction as well as on equilibrium-setting approaches. This review discusses...

Barley varieties registered in the Slovak Republic in 2010.Peer-reviewed article

Vratislav PSOTA, Lenka SACHAMBULA, Marián SVORAD

Kvasny Prum. 2010; 56(9): 367-372 | DOI: 10.18832/kp2010039  

In 2007-2009 spring barley varieties Calcule, Claire, Karmel, Loredana, Paulis, and Vista were evaluated in the CCTIA Bratislava and RIBM Brno with the aim to obtain basic information and provide technical support to customers interested in these varieties. The results suggest that malting quality of all the studied varieties was similar to that of the standard varieties Nitran and Xanadu. Generally, the studied varieties had good extract contents but only the variety Karmel exceeded the standard varieties and achieved the average value of extract content of 83.4 %. The varieties had a good to optimal level of proteolytic, amylolytic and cytolytic...