Project information
Bioavailability and mechanism of antioxidant activity of phenolic acids and lignans
- Project Identification
- GA303/00/D062
- Project Period
- 1/2000 - 1/2003
- Investor / Pogramme / Project type
-
Czech Science Foundation
- Standard Projects
- MU Faculty or unit
- Faculty of Medicine
Recent epidemiological data support a protective effect of intake of vegetables and fruits against cancer and cardiovascular diseases. The protective effect is also attributed to antioxidant polyphenolic compounds, such as flavonoids, found in the plants in the high amounts. Polyphenols show a strong antioxidant activity in vitro, but little is known about their bioavailability. The former purpose of this project is to determine the bioavailability and the mechanism of antioxidative effect of dicoffeoyl quinic acids and flavonoids present in the artichoke extract. The interest in dicaffeoylquinic acids has expanded rapidly in the last years due to their anti-HIV and HIV-integrase inhibition activity. The antioxidant activity of caffeoylquinic acids can be mediated by the potent antiradical activity and/or by forming chelates with ferric ions, that cannot produce reactive oxygen species. The letter purpose of this project is to discover the mechanism of antioxidative effect of dibenzocyclooctadiene lign
Publications
Total number of publications: 34
2003
-
Main flavonoids in the root of Scutellaria baicalensis cultivated in Europe and comparison their antiradical properties.
Phytotherapy Research, year: 2003, volume: 2003, edition: 6
2002
-
Antioxidační charakteristiky flavonoidů ze Scutellaria baicalensis
Chemické Listy, year: 2002, volume: 96, edition: 6
-
Bioavailability and metabolism of artichoke caffeoylquinic acids in man
Zborník XVIII. Biochemický zjazd, year: 2002
-
Evaluation of antioxidative activity of flavonoids and exctract of Scutellaria baicalensis with coulochemical detection
Zborník XVIII.Biochemický zjazd, year: 2002
-
Kinetické stanovení antiradikálové aktivity s použitím 2,2-difenyl-1-pikrylhydrazylu
Chemické listy, year: 2002, volume: 96, edition: 6
2001
-
Analýza fenolických kyselin artyčoku pomocí vysokoúčinné kapalinové chromatografie s coulometrickou detekcí
Biologicky aktivní fenolické látky v zemědělských plodinách, year: 2001
-
Application of Capillary Chromatography using Macroporous Polyacrylamide Columns for the Analysis of Lignans from Seeds of Schisandra chinensis
Journal of Chromatography A, year: 2001, volume: 916, edition: (1+2)
-
Application of micellar electrokinetic capillary chromatography for the analysis of schizandra extract
Book of abstract ICES 2001 An Electrophoretic Odessey, year: 2001
-
Determination of Biologically Active Compounds in Medicinal Plants by Capillary Electrochromatography
Book of abstract 2nd International symposium "Separations in BioSciences SBS 2001", year: 2001
-
Determination of phenolic compounds in artichoke extract by means of MEKC
Book of abstract ICES 2001 An Electrophoretic Odessey, year: 2001