Kvasny Prumysl, 2002 (vol. 48), issue 1
Bactericidal Effects of Titanium Dioxide.Peer-reviewed article
I. HOLLEROVÁ, Z. STRNAD, P. PECH, K. KOSAŘ
Kvasny Prum. 2002; 48(1): 5-9 | DOI: 10.18832/kp2002001 
Titanium dioxide in its crystalline form functions as photocatalyst. Surfaces of solids treated by titanium dioxide emit oxygen free radicals into their environment when illuminated by an appropriate wavelength of visible light. Their bacteriostatic and bactericidal effects disinfect the surfaces without the necessity to use any chemical agents. Surface application of the protective layer thus should ensure sanitation without the addition of disinfectants. Also any poorly accessible nooks and crannies in food processing machinery can be biologically cleaned by a mere illumination by an incandescent lamp if the surfaces are pretreated with...
Quality of Barley From 2001 Crop - Brewery Section.Peer-reviewed article
M. HRABÁK, K. NIKOLAI, D. HRDLIČKOVÁ, J. PROKEŠ
Kvasny Prum. 2002; 48(1): 9-13 | DOI: 10.18832/kp2002002
In this work, analytical parameters and sensorial properties of 11% beers brewed from 2001 crop barleys were assessed. For semipilot Czech technology beer brewing, 6 samples of barleys taken from Bohemian and Moravian regions were malted. In most cases, analytical parameters were better than the ones in 2000. The prepared malts show a low protein content, low soluble nitrogen and β-glucanes, have good values of DFLU extract difference, a low pH value of hopped wort (5,5 in average), a low content of diacetyl in beer (less than 10 mg/l) and show a relatively higher content of dimethyl sulfide precursors. Enzymatic capability of the malts was assessed...