title: Characterization of some extractive fractions isolated from raw Allium cepa L. bulbs.
abstract: Many recent studies have showed that onion (Allium cepa L.) has antioxidant effect which could be of great importance for prevention and treatment of different diseases: diabetes, cancer, cardiovascular and neurodegenerative disorders. The aim of this study was to investigate the antioxidant capacity of two extracts isolated from fresh onion bulbs: an hydroalcoholic extract (codified EC1) and an aqueous extract (codified EC2).
  
  
  METHODS
  Antioxidant capacity was evaluated by three different assays: DPPH scavenging assay, H2O2, scavenging assay and reducing power assay.
  
  
  RESULTS
  Both investigated extracts possess interesting antioxidant properties which are significantly influenced by their chemical composition.
authors.affiliation: Department of Organic Chemistry, School of Pharmacy, "Gr.T. Popa" University of Medicine and Pharmacy Iaşi.
authors.forename: Gabriela
authors.initials: G
authors.lastname: Tătărîngă
authors.forename: Anca
authors.initials: A
authors.lastname: Miron
authors.forename: Ioana
authors.initials: I
authors.lastname: Păduraru
authors.forename: Monica
authors.initials: M
authors.lastname: Hăncianu
authors.forename: Eliza
authors.initials: E
authors.lastname: Gafiţanu
authors.forename: Ursula
authors.initials: U
authors.lastname: Stănescu
mesh_terms: D000975:Antioxidants / Q000737:chemistry* / Q000494:pharmacology; D016166:Free Radical Scavengers; D006801:Humans; D006861:Hydrogen Peroxide; D019697:Onions / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry* / Q000627:therapeutic use*; D018517:Plant Roots / Q000737:chemistry
chemical_list: D000975:Antioxidants; D016166:Free Radical Scavengers; D010936:Plant Extracts; D006861:Hydrogen Peroxide