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  • 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)
Title
  • New antioxidant flavonoid isolated from Leuzea carthamoides
  • New antioxidant flavonoid isolated from Leuzea carthamoides (en)
skos:prefLabel
  • New antioxidant flavonoid isolated from Leuzea carthamoides
  • New antioxidant flavonoid isolated from Leuzea carthamoides (en)
skos:notation
  • RIV/60162694:G44__/10:00002396!RIV11-MO0-G44_____
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • I, S, Z(MSM0021620822)
http://linked.open...iv/cisloPeriodika
  • 1
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 274596
http://linked.open...ai/riv/idVysledku
  • RIV/60162694:G44__/10:00002396
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Leuzea carthamoides; flavonoid; patuletin; antioxidant; FRAP; DPPH (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV
  • [42BC2185A9E4]
http://linked.open...i/riv/nazevZdroje
  • Journal of Enzyme Inhibition and Medicinal Chemistry
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 25
http://linked.open...iv/tvurceVysledku
  • Kuča, Kamil
  • Kuneš, Jiří
  • Jun, Daniel
  • Macáková, Kateřina
  • Opletal, Lubomír
  • Jahodář, Luděk
  • Kolečkář, Vít
http://linked.open...ain/vavai/riv/wos
  • 000275000900021
http://linked.open...n/vavai/riv/zamer
issn
  • 1475-6366
number of pages
http://localhost/t...ganizacniJednotka
  • G44
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