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Description
| - A new natural flavonoid patuletin 3'-beta-xylofuranoside was isolated from Leuzea carthamoides leaves. The antioxidant activity of this compound was evaluated by the DPPH radical assay and ferric reducing antioxidant power (FRAP) assay, and the results were compared with those for trolox and quercetin. DPPH radical scavenging activity of the tested compounds was expressed by the parameter EC50 : patuletin 3'-beta-xylofuranoside (56.0 mu M), trolox (27.8 mu M), and quercetin (25.3 mu M). The ferric reducing activity of the compounds was demonstrated as FRAP values at 4 and 60 min: patuletin 3'-beta-xylofuranoside (28.4 mu M, 35.8 mu M), trolox (19.3 mu M, 20.2 mu M), and quercetin (54.3 mu M, 79.9 mu M). The structure/activity relationship of the flavonoid is also discussed. The results indicate significant antioxidant potency of patuletin 3'-beta-xylofuranoside.
- A new natural flavonoid patuletin 3'-beta-xylofuranoside was isolated from Leuzea carthamoides leaves. The antioxidant activity of this compound was evaluated by the DPPH radical assay and ferric reducing antioxidant power (FRAP) assay, and the results were compared with those for trolox and quercetin. DPPH radical scavenging activity of the tested compounds was expressed by the parameter EC50 : patuletin 3'-beta-xylofuranoside (56.0 mu M), trolox (27.8 mu M), and quercetin (25.3 mu M). The ferric reducing activity of the compounds was demonstrated as FRAP values at 4 and 60 min: patuletin 3'-beta-xylofuranoside (28.4 mu M, 35.8 mu M), trolox (19.3 mu M, 20.2 mu M), and quercetin (54.3 mu M, 79.9 mu M). The structure/activity relationship of the flavonoid is also discussed. The results indicate significant antioxidant potency of patuletin 3'-beta-xylofuranoside. (en)
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Title
| - New antioxidant flavonoid isolated from Leuzea carthamoides
- New antioxidant flavonoid isolated from Leuzea carthamoides (en)
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skos:prefLabel
| - New antioxidant flavonoid isolated from Leuzea carthamoides
- New antioxidant flavonoid isolated from Leuzea carthamoides (en)
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skos:notation
| - RIV/60162694:G44__/10:00002396!RIV11-MO0-G44_____
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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/60162694:G44__/10:00002396
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - Leuzea carthamoides; flavonoid; patuletin; antioxidant; FRAP; DPPH (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - GB - Spojené království Velké Británie a Severního Irska
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - Journal of Enzyme Inhibition and Medicinal Chemistry
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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
| - Kuča, Kamil
- Kuneš, Jiří
- Jun, Daniel
- Macáková, Kateřina
- Opletal, Lubomír
- Jahodář, Luděk
- Kolečkář, Vít
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http://linked.open...ain/vavai/riv/wos
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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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is http://linked.open...avai/riv/vysledek
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