Kvasny Prumysl, 1983 (vol. 29), issue 9
Method for an evaluation of texture technologic and sorption properties of adsorbent for polyphenolic substances Sorbamid.Peer-reviewed article
G. BASAŘOVÁ, J. ŠKACH, V. KUBÁNEK, B. VERUOVIČ
Kvasny Prum. 1983; 29(9): 193-200 | DOI: 10.18832/kp1983035 
A method for an evaluation of preparation effect of polyamide adsorbent of polyphenols Sorbamid in described. Properties such as the mass ration of basic raw materials, temperature, time of dissolution of poly-6-caprolactam in 6-caprolactam on differences of a surface area, a volume and a mean diameter of pores in this agent, sorption capacity according to the quantity of immobilized rutin of1 gof Sorbamid and according to the percentage fraction of a drop in all polyphenols and anthocyanogenes of an application of sorbent into beer are mentioned. The technological properties of Sorbamid were determined on a base of the loose mass, wet volume and pressure...
Substitution of malt by maize and barley in beer production.Peer-reviewed article
B. ABRAMOVIČ
Kvasny Prum. 1983; 29(9): 200-205 | DOI: 10.18832/kp1983036
Brewing with a substitution of malt by maize (50 %) and by maize and barley (20 % + 20 %) were performed on a pilot plant scale and plant scale. Using enzymes with activities of amylase, protease and beta-gluconase (Novo-Industri, Denmark, Naarden, Int. Holland) the beers with a satisfactory quality were produced up to 30 - 40 % of raw grain. In comparison to changes with malt, the content of a-amino nitrogen, other N-compounds, colour, polyphenols and anthocyanogenes is decreased in wort and beer where raw grain was used. Using a suitable mixture of enzymes good results in the utilization of extract, wort attenuation and economic effect are achieved.(In...
Growth stimulators for fodder yeast production.Peer-reviewed article
L. ADÁMEK, M. RUT, F. ŠTROS
Kvasny Prum. 1983; 29(9): 205-208 | DOI: 10.18832/kp1983037
For fodder yeast production from ethanol distiller's slops as a source of stimulatory compounds, are used. As further possible sources autolysates of Saccharomyces cerevisa, Torulopsis ethanolitolerans and the supernatant after termization of yeast suspension produced were tested. Autolyzates were inefficient. However the effect of supernatant after thermalization of yeast suspension was the same of better than of molasses destilation residue. Looses of the final product originated during thermalization of yeast suspension are partially of quite compensated with the stimulatory effect of supernatant added. The most economic procedure of the...
Biosynthesis of L-lysine with the strain Corynebacterium glutamicum 10-20/60. I. Non-standard sources of carbon.Peer-reviewed article
F. SMÉKAL, N.I. ŽDANOVA, T.V. LEONOVA, Z.M. ZAJCEVA
Kvasny Prum. 1983; 29(9): 208-210 | DOI: 10.18832/kp1983038
The production mutant of Corynebacterium glutamicum 10-20/60 which need homoserine for growth and which is resistant to S-amino-ethylcysteine, accumulates L-lysine in a fementation medium. The accumulation of L-lysine was observed in fermentations with standard carbon sources (saccharose, molasses) as well as with non-standard carbon sources (acetic acid, hydrolysates of cereal starches, mixtures of molasses-acetate and enzyme hydrolysates of paper). This mutant is similar to the production strain of Brevibacterium flavum with the same genetic determination from the standpoint of the assimulation of various carbon sources, the corresponding...