title: Evaluation of antioxidant activities of the edible and medicinal Acacia albida organs related to phenolic compounds.
abstract: This study compared phenolic contents and antioxidant activity in different organs of Acacia albida (leaves and bark) and focuses on identification of phenolic compounds of leaves by HPLC-DAD. The analysed organs exhibited differences in total polyphenol contents (100 and 59.5 mg GAE g(-1) DW). Phenolic contents of leaves were two times higher than those in bark. Ethanolic extracts exhibited good antioxidant activities with IC50 = 26 μg mL(-1) for DPPH and EC50 = 50 μg mL(-1) for FRAP. Identification by HPLC-DAD revealed the presence of nine phenolic compounds known for their high antioxidant activity. The results suggested that this species can be used as source of natural antioxidants.
authors.affiliation: a Laboratoire d'Ecotoxicologie et stress abiotiques, Dépt Biologie et Ecologie , Faculté SNV, Université Constantine 1 , Constantine , Algeria.
authors.forename: Samira
authors.initials: S
authors.lastname: Karoune
authors.forename: Hanen
authors.initials: H
authors.lastname: Falleh
authors.forename: Mohamed Seif Allah
authors.initials: MS
authors.lastname: Kechebar
authors.forename: Youcef
authors.initials: Y
authors.lastname: Halis
authors.forename: Khaoula
authors.initials: K
authors.lastname: Mkadmini
authors.forename: Mohamed
authors.initials: M
authors.lastname: Belhamra
authors.forename: Chaabane
authors.initials: C
authors.lastname: Rahmoune
authors.forename: Riadh
authors.initials: R
authors.lastname: Ksouri
mesh_terms: D000045:Acacia / Q000737:chemistry*; D000975:Antioxidants / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid; D010636:Phenols / Q000737:chemistry*; D024301:Plant Bark / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry*
chemical_list: D000975:Antioxidants; D010636:Phenols; D010936:Plant Extracts
keywords: Acacia albida; HPLC-DAD; bark; leaves; phenolic compounds