| Attributes | Values |
|---|
| rdf:type
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| rdfs:seeAlso
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| Description
| - 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 on the content of these substances in beer was carried out. The elaborated method may find application in the monitoring of the bioactive flavonoids content in hop raw materials and beer. Application of green hops homogenate (20% alpha acids in batch) at the last dose of hopping results in increased contents of xanthohumol and 6-prenylnaringenin in beer by approx. 50% and 100% respectively compared with dried hops. Application into a whirlpool increased xanthohumol and 8-prenylnaringenin content in beer by approx. 55% and 115% respectively. With the exception of a significant increase in the value of genistein in whirlpool application, an influence of non-dried hops on the isoflavonoids content in beer was not found. Hopping by green hops homogenate shows an interesting possibility of natural increase in content of xanthohumol in beer. In further research the results of preliminary studies shall be verified.
- 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 on the content of these substances in beer was carried out. The elaborated method may find application in the monitoring of the bioactive flavonoids content in hop raw materials and beer. Application of green hops homogenate (20% alpha acids in batch) at the last dose of hopping results in increased contents of xanthohumol and 6-prenylnaringenin in beer by approx. 50% and 100% respectively compared with dried hops. Application into a whirlpool increased xanthohumol and 8-prenylnaringenin content in beer by approx. 55% and 115% respectively. With the exception of a significant increase in the value of genistein in whirlpool application, an influence of non-dried hops on the isoflavonoids content in beer was not found. Hopping by green hops homogenate shows an interesting possibility of natural increase in content of xanthohumol in beer. In further research the results of preliminary studies shall be verified. (en)
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| Title
| - Simultaneous determination of prenylflavonoids and isoflavonoids in hops and beer by HPLC-DAD method: Study of green hops homogenate application in the brewing process
- Simultaneous determination of prenylflavonoids and isoflavonoids in hops and beer by HPLC-DAD method: Study of green hops homogenate application in the brewing process (en)
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| skos:prefLabel
| - Simultaneous determination of prenylflavonoids and isoflavonoids in hops and beer by HPLC-DAD method: Study of green hops homogenate application in the brewing process
- Simultaneous determination of prenylflavonoids and isoflavonoids in hops and beer by HPLC-DAD method: Study of green hops homogenate application in the brewing process (en)
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| skos:notation
| - RIV/60193697:_____/13:#0000814!RIV14-MZE-60193697
|
| http://linked.open...avai/riv/aktivita
| |
| http://linked.open...avai/riv/aktivity
| - P(QI101B090), Z(MSM6019369701)
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| http://linked.open...iv/cisloPeriodika
| |
| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
| |
| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
| |
| http://linked.open...ai/riv/idVysledku
| - RIV/60193697:_____/13:#0000814
|
| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - isoflavonoids; prenylflavonoids; xanthohumol; isoxanthohumol; 8-prenylnaringenin; HPLC-DAD; green hops homogenate; beer (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
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| http://linked.open...ontrolniKodProRIV
| |
| http://linked.open...i/riv/nazevZdroje
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| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...vavai/riv/projekt
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
| - Houška, M.
- Čejka, Pavel
- Jurková, Marie
- Mikyška, Alexandr
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| http://linked.open...n/vavai/riv/zamer
| |
| issn
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| number of pages
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