Kvasny Prumysl, 1991 (vol. 37), issue 1
Microbial production of Glukose-6-Phosphate Dehydrogenase.Peer-reviewed article
B. KRÁLOVÁ, P. BASAŘ, K. DEMNEROVÁ
Kvasny Prum. 1991; 37(1): 1-4 | DOI: 10.18832/kp1991001 
The activity of glucose-6-phosphate dehydrogenase (G-6-PDH) was determined in various industrial strains of yeasts. From microorganisms tested the best resource of this enzyme was brewing yeast. However, the activity of G-6-PDH varied in yeasts from different breweries. The enzyme activity was dependent on the technology used, on the wort composition and the production strain.The activity of glucose-6-phosphate dehydrogenase (G-6-PDH) was determined in various industrial strains of yeasts. From microorganisms tested the best resource of this enzyme was brewing yeast. However, the activity of G-6-PDH varied in yeasts from different breweries. The enzyme...
Flow resistance and discharge during filtration.Peer-reviewed article
J. ŠAVEL
Kvasny Prum. 1991; 37(1): 4-7 | DOI: 10.18832/kp1991002
A significance of parameters used for the testing of filtration materials is discussed. The relations among specific filtration resistance, discharge rate and constants of linearized filtration equations for processes with the constant and the varying thickness of filtration cake under constant pressure are described.(In Czech, English summary only)
Comparison of nucleic acid extraction and yeast extract preparation from baker's yeast Saccharomyces cerevisiae and fodder yeast Candida utilis.Peer-reviewed article
B. BĚHALOVÁ, M. BLÁHOVÁ, V. ŠILLINGER
Kvasny Prum. 1991; 37(1): 7-10 | DOI: 10.18832/kp1991003
Six modifications of the extraction procedure for the yeast extract preparation and nucleic acid isolations from the cells of Saccharomyces cerevisiae and those of Candida utilis have been compared. For the yeast extract production the best procedure was the autolysis of Candida utilis at the temperature of 50 to 52 °Cwithout any chemical agent additions. The best extraction procedure for the isolation of nucleic acids has also been achieved with Candida utilis yeasts under the following conditions: in 0,4 mol.l-1 NH4OH, at the temperature of40 °C or92 °C and pH 7,5. With S. cerevisiae using each extraction procedure an increased...
Fractionation of yeast biomass. VI. Preparation of nutritional concentrates.Peer-reviewed article
R. KOLLÁR, E. ŠTURDÍK, H. VÁŇOVÁ, J. KOČAN
Kvasny Prum. 1991; 37(1): 12-17 | DOI: 10.18832/kp1991004
The preparation of yeast extract from the supernatant fraction of yeast autolysate together with the preparation of invertase, ergosterol, phospholipids, cell walls and glucans are described. This yeast extract was successfully proved for the following aims: as a component for culture media used for industrial processes as well as for microbial diagnostic, as the addition for dried soups and special kind of smoked meat products.(In Slovak, English summary only)