Kvasny Prumysl, 1993 (vol. 39), issue 12


Deleterious substances in brewing liquors.Peer-reviewed article

J. ČULÍK, F. FRANTÍK, V. KELLNER

Kvasny Prum. 1993; 39(12): 363-366 | DOI: 10.18832/kp1993023  

The content of some deleterious substances in brewing liquors from twelve breweries fromEast Bohemiawas determined. The study was focused on a presence of the following substances: metals, lower volatile halogenated hydrocarbons and two polychlorinated biphenyls. From the standpoint of ČSN 75 7111 the content of au deleterious substances tested was under the limit values (with one exception of higher PCB level in one sample). However, some results obtained proved the effect of grandwater contamination due to industrial activities (levels of halogenated hydrocarbons and some metals). From this follows there it is necessary to check regularly the level...

Fractionation of yeast biomass. IX. Application of skills with baker's yeasts to other yeast species.Peer-reviewed article

R. KOLLÁR, E. ŠTURDÍK, D. VANDÁK, P. KRISTIŇÁK, R. VAVREK

Kvasny Prum. 1993; 39(12): 366-371 | DOI: 10.18832/kp1993024  

The procedure of the complex fractionation of baker's yeast (Pat. CS 259 288) for a preparation of yeast extract, invertase, ergosterol, phospholipids, cell walls, mannoproteins and β-g1ucans was applied to other cheaper industrially produced types of yeast biomass. The experiments were performed with Candida ethanolitolerans cultured on synthetic ethanol, brewing waste yeast of Saccharomyces carlsbergensis and Kluyveromyces marxianus grown on whey. The slightly addapted fractionation procedure can be applied to other types of yeast biomass, as well.(In Slovak, English summary only)