| Attributes | Values |
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| rdf:type
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| Description
| - V současné době metoda EBC 7.7 používaná pro stanovení hořkých kyselin ve chmelových produktech je pracná a časově náročná metoda. V této práci bylo naší snahou navrhnout novou extrakční metodu založenou na tlakové extrakci kapalin (PFE). PFE nabízí mnoho významných předností. K PFE extrakci hořkých alfa- a beta-kyselin z chmele a chmelových preparátů byl využit automatizovaný extraktor OnePSE. Byly studovány parametry ovlivňující výtěžnost extrakce stejně jako způsob přípravy vzorků. Kvantitativní stanovení obsahu hořkých alfa- a beta-kyselin v extraktech bylo uskutečněno pomocí vysokoúčinné kapalinové chromatografie a detekce pomocí detektoru s diodovým polem. Získané výsledky byly porovnány s výsledky získanými standardní metodou EBC 7.7. PFE metodu lze pokládat za perspektivní metodu a možnou alternativu k metodě EBC 7.7. (cs)
- The EBC method 7.7, currently used for determination of bitter acids in hop products, is a time-consuming and laborious extraction technique. In this contribution, our aim was to propose a new extraction method based on Pressurized Fluid Extraction (PFE). Compared to conventional extractions, PFE offers a number of important benefits. PFE on OnePSE automated extractor was used for extraction of alpha- and beta-acids from hops and hop products. The parameters influencing the extraction efficiency were studied as well as the influence of the sample preparation method. The quantitative determination of alpha- and beta-acids in extracts was accomplished using an HPLC equipped with diode array detector. The experimental results were compared with those obtained by the standard EBC method 7.7. PFE method presents a promising alternative to the EBC method 7.7.activities.
- The EBC method 7.7, currently used for determination of bitter acids in hop products, is a time-consuming and laborious extraction technique. In this contribution, our aim was to propose a new extraction method based on Pressurized Fluid Extraction (PFE). Compared to conventional extractions, PFE offers a number of important benefits. PFE on OnePSE automated extractor was used for extraction of alpha- and beta-acids from hops and hop products. The parameters influencing the extraction efficiency were studied as well as the influence of the sample preparation method. The quantitative determination of alpha- and beta-acids in extracts was accomplished using an HPLC equipped with diode array detector. The experimental results were compared with those obtained by the standard EBC method 7.7. PFE method presents a promising alternative to the EBC method 7.7.activities. (en)
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| Title
| - Pressurized Fluid Extraction - new progressive alternative of extraction of bitter acids from hops and hop products
- Tlaková fluidní extrakce - nová progresivní alternativa pro extrakce hořkých kyselin z chmelu a chmelových produktů (cs)
- Pressurized Fluid Extraction - new progressive alternative of extraction of bitter acids from hops and hop products (en)
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| skos:prefLabel
| - Pressurized Fluid Extraction - new progressive alternative of extraction of bitter acids from hops and hop products
- Tlaková fluidní extrakce - nová progresivní alternativa pro extrakce hořkých kyselin z chmelu a chmelových produktů (cs)
- Pressurized Fluid Extraction - new progressive alternative of extraction of bitter acids from hops and hop products (en)
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| skos:notation
| - RIV/60193697:_____/07:#0000400!RIV08-MSM-60193697
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| http://linked.open.../vavai/riv/strany
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| 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:_____/07:#0000400
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| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - extraction; fluid extraction; pressured fluid extraction; alpha-acids; hop; hop analysis (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...v/mistoKonaniAkce
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| http://linked.open...i/riv/mistoVydani
| |
| http://linked.open...i/riv/nazevZdroje
| - Proceedings of the 31st EBC Congress
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| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...iv/tvurceVysledku
| - Horák, Tomáš
- Kellner, Vladimír
- Karásek, Pavel
- Roth, Michal
- Čejka, Pavel
- Jurková, Marie
- Čulík, Jiří
- Planeta, Josef
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| http://linked.open...vavai/riv/typAkce
| |
| http://linked.open.../riv/zahajeniAkce
| |
| http://linked.open...n/vavai/riv/zamer
| |
| number of pages
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| http://purl.org/ne...btex#hasPublisher
| |
| https://schema.org/isbn
| |
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