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| Description
| - V této studii byla zavedena a validována metoda HPLC pro stanovení hydroxymethylfurfuralu (HMF) v medu. Porovnáním HPLC metody s klasickou metodou Winklerovou bylo zjištěno, že rozdíly mezi výsledky stanovenými oběma metodami jsou statisticky významné (p < 0,05) a že metoda HPLC poskytuje přesnější výsledky oproti klasické metodě Winklerově. Využitím zavedené metody HPLC byl stanoven obsah HMF v souboru 56 vzorků medů vytáčených v letech 1999 - 2002 pocházejících přímo od včelařů z ČR. Naměřené hodnoty HMF se u vzorků medů pocházejících z roku 1999 pohybovaly v rozmezí 24,8 - 66,1 mg.kg-1, z roku 2000 v rozmezí 15,2 - 38,7 mg.kg-1 a vzorky z roku 2001 obsahovaly 5,7 - 38,4 mg.kg-1. HMF v medech vytáčených v roce 2002 se pohyboval v hodnotách menších než mez detekce až po koncentrace 24,2 mg.kg-1. Koncentrace HMF se v jednotlivých letech statisticky signifikantně (p < 0,01) lišily. Statisticky nevýznamné rozdíly byly nalezeny mezi roky 2001/2002. Limit pro obsah HMF v medu 40 mg.kg-1 stanovený če (cs)
- In this study the method of HPLC for the determination of hydroxymethylfurfural (HMF) in honey was introduced and validated. The comparison of the HPLC method with classical Winkler's method indicated significant differences in the results determined by both methods (P < 0.05). It was also found out that the HPLC method provided more accurate results than classical Winkler's method. Employing the established HPLC method we determined the content of HMF in the package of 56 samples of the honeys campaigned between the years 1999 and 2002 by Czech beekeepers. The ranges of the recorded values of HMF were: 24.8-66.1 mg/kg in the samples from the year 1999, 15.2-38.7 mg/kg in the samples from the year 2000 and the samples from the year 2001 contained 5.7-38.4 mg/kg of HMF. HMF in the honey samples campaigned in 2002 ranged between the values lower than the limit of detection up to the concentrations of 24.2 mg/kg. There were significant differences (P < 0.01) in the concentrations of HMF i
- In this study the method of HPLC for the determination of hydroxymethylfurfural (HMF) in honey was introduced and validated. The comparison of the HPLC method with classical Winkler's method indicated significant differences in the results determined by both methods (P < 0.05). It was also found out that the HPLC method provided more accurate results than classical Winkler's method. Employing the established HPLC method we determined the content of HMF in the package of 56 samples of the honeys campaigned between the years 1999 and 2002 by Czech beekeepers. The ranges of the recorded values of HMF were: 24.8-66.1 mg/kg in the samples from the year 1999, 15.2-38.7 mg/kg in the samples from the year 2000 and the samples from the year 2001 contained 5.7-38.4 mg/kg of HMF. HMF in the honey samples campaigned in 2002 ranged between the values lower than the limit of detection up to the concentrations of 24.2 mg/kg. There were significant differences (P < 0.01) in the concentrations of HMF i (en)
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| Title
| - Hydroxymethylfurfural in Czech honeys
- Hydroxymethylfurfural in Czech honeys (en)
- Hydroxymethylfurfural v českých medech (cs)
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| skos:prefLabel
| - Hydroxymethylfurfural in Czech honeys
- Hydroxymethylfurfural in Czech honeys (en)
- Hydroxymethylfurfural v českých medech (cs)
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| skos:notation
| - RIV/62157124:16270/03:00000086!RIV06-MSM-16270___
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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...iv/cisloPeriodika
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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
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| http://linked.open...ai/riv/idVysledku
| - RIV/62157124:16270/03:00000086
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - Honey; HMF; storage; HPLC; Winkler's method (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
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| http://linked.open...i/riv/nazevZdroje
| - Czech Journal of Animal Science
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
| - Borkovcová, Ivana
- Večerek, Vladimír
- Vorlová, Lenka
- Smutná, Miriam
- Kalábová, Klára
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| http://linked.open...n/vavai/riv/zamer
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| issn
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| number of pages
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| http://localhost/t...ganizacniJednotka
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