title: A study on antimicrobial, antioxidant and antimutagenic activities of Elaeagnus angustifolia L. leaves.
abstract: BACKGROUND
  [corrected] The aim of this work was to investigate the antimicrobial, antioxidant, and antimutagenic potentials of methanol extracts from E. angustifolia.
  
  
  METHODS
  Methanol extracts were screened for antimicrobial activity against different species of 4 Gram positive and 3 Gram negative bacteria and one fungus. These bacteria included food pathogens. The leaf extract was tested using disc diffusion assay.
  
  
  RESULTS
  The methanol extract of E. angustifolia showed maximum inhibition zone of 16 mm against Yersinia enterocolitica. Whereas, the inhibition zone was not determined by methanol extract against Escherichia coli ATCC 1122 and Candida albicans RSKK 02029. The MIC was evaluated on plant extracts as antimicrobial activity. All of bacterial strains showed the lowest sensitivity to methanol extract of E. angustifolia (3.5 mg/mL), except Yersinia enterocolitica NCTC 11174. In addition, the plant extracts were tested against the stable DPPH (2,2-diphenyl-1-picryl-hydrazyl-hydrate) free-radical. Finally, the methanol extract displayed a strong antioxidant activity (Trolox equivalent = 1.49 mM). Also, E. angustifolia methanol extracts were screened for their antimutagenic activity against sodium azide by Ames test in absence of rat microsomal liver enzyme (-S9). The results showed that E. angustifolia methanol extracts can inhibit mutagenic agents of sodium azide. The plant leaf extracts with the inhibition of 36% sodium azide showed moderate potential in decreasing mutagenic agents in Salmonella typhimurium TA100.
  
  
  CONCLUSIONS
  E. angustifolia methanol extracts have antimicrobial, antioxidant and antimutagenic potential.
authors.affiliation: Mugla Sıtkı Kocman University, Faculty of Science, Department of Biology, TURKEY.
authors.forename: G
authors.initials: G
authors.lastname: Okmen
authors.affiliation: Mugla Sıtkı Kocman University, Faculty of Science, Department of Biology, TURKEY.
authors.forename: O
authors.initials: O
authors.lastname: Turkcan
mesh_terms: D000818:Animals; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D016587:Antimutagenic Agents / Q000494:pharmacology*; D000975:Antioxidants / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects*; D002176:Candida albicans / Q000187:drug effects; D031263:Elaeagnaceae; D009153:Mutagens; D010936:Plant Extracts / Q000494:pharmacology*; D018515:Plant Leaves; D051381:Rats; D019810:Sodium Azide
chemical_list: D000900:Anti-Bacterial Agents; D016587:Antimutagenic Agents; D000975:Antioxidants; D009153:Mutagens; D010936:Plant Extracts; D019810:Sodium Azide
keywords: Elaeagnus; antimicrobial activity; antimutagenic activity; antioxidant activity