Kvasny Prumysl, 1992 (vol. 38), issue 12
Nitrite formation in innoculated hopped wort using m-phenylenediamine.Peer-reviewed article
J. ŠAVEL, M. PROKOPOVÁ, D. ZDVIHALOVÁ
Kvasny Prum. 1992; 38(12): 350-353 | DOI: 10.18832/kp1992031 
The article describes the reaction of m-phenylenediamine (m-FDA) with nitrite which is formed via the reduction of nitrate by bacteria presented in hopped wort. m-FDA was added into innoculated hopped wort. This compound was bound with the nitrite. The final coloured compound that was formed in this reaction was measured at 450 nm. m-FDA suppressed neither the activity of the yeast nor that of the bacteria. The reaction was more intensive in higher m-FDA quantities, tower pH and with increasing nitrate concentration. The reaction can be used for a quick estimation of the bacteria presented in hopped wort, both in liquid and solid microbiological media.(In...
Fractionation of yeast biomass. VIII. Utilization of nucleic acids fraction.Peer-reviewed article
R. KOLLÁR, E. ŠTURDÍK, M. ROSENBERG, A. VLNOVÁ, B. FERENČÍK
Kvasny Prum. 1992; 38(12): 354-359 | DOI: 10.18832/kp1992032
This part is focussed on products obtained from the degradation of nucleic acids, with the aim of improving the qualitative parameters of these products. In addition, some methods of the RNA isolation were also tested. The isolated preparates of RNA could be applied in veterinary or human medicine and in food stuffs.(In Slovak, English summary only)
A fermentative production of threonine.Peer-reviewed article
J. PLACHÝ, I. FILIPÍK
Kvasny Prum. 1992; 38(12): 359-360 | DOI: 10.18832/kp1992033
Aquality of inoculum and optimal concentration of dissolved oxygen, obtained by suitable aeration and stirring during a cultivation of a constructed strain Escherichia coli producing L-threonine represent important factors for the threonine preparation by fermentation in a laboratory scale.(In Czech, English summary only)