Kvasny Prumysl, 2013 (vol. 59), issue 2
Spontaneous liberation of carbon dioxide from beer and gushing.Peer-reviewed article
Jan ŠAVEL, Petr KOŠIN, Adam BROŽ
Kvasny Prum. 2013; 59(2): 33-40 | DOI: 10.18832/kp2013004 
Release of carbon dioxide from beer bottle after its opening was measured as the rate of gas liberation or the liquid volume displacement from the bottle . Results confirm the importance of solid particles and gases that are bonded on their surfaces during spontaneous liberation of carbon dioxide from beer and carbonated water, which does not contain any hydrofobins . Such a mechanism can be applied to inorganic and organic substances including cellulose and activated charcoal, which can be considered as thermally degraded cellulose . Small cellulose particles may be part of the beer, and their formation may also be enhanced by mold infection of grains...
Simultaneous determination of prenylflavonoids and isoflavonoids in hops and beer by HPLC-DAD method: Study of green hops homogenate application in the brewing process.Peer-reviewed article
Marie JURKOVÁ, Pavel ČEJKA, Milan HOUŠKA, Alexandr MIKYŠKA
Kvasny Prum. 2013; 59(2): 41-49 | DOI: 10.18832/kp2013005
Polyphenolic substances belonging to prenylflavonoids and isoflavonoids groups have health-promoting effects and protecting effects against many civilization diseases . They act as antioxidants, have anti-cancer, anti-microbial, anti-inflammatory effects, some of them are phytoestrogens and counteract osteoporosis . A novel analytical method HPLC-DAD for simultaneous determination prenylflavonoids (xanthohumol, isoxanthohumol, 8-prenylnaringenin, 6-prenylnaringenin) and isoflavonoids (daidzein, genistein, formononetin and biochanin A) in hops and beer was developed, and a study on the impact of hopping by green hops homogenate stabilized high pressure...