title: Antioxidant activity of different parts of Pistacia khinjuk Stocks fruit and its correlation to phenolic composition.
abstract: The fruits of Pistacia khinjuk Stocks were collected from Ilam province, Iran. The aim of this study was to analyse antioxidant capacity and phenolic composition of different parts of P. khinjuk fruit. The antioxidant capacity of extracts was measured using different assays: ferric reducing ability of plasma, 2,2-diphenyl-1-picrylhydrazyl and nitric oxide radical scavenging. The phenolic composition of P. khinjuk fruit is reported for the first time. Amongst different parts of the fruit analysed in this study, hull extract contained the highest total phenolic and flavonoid contents. We observed a high correlation between different antioxidant activity and total phenolic and flavonoid contents. Therefore, antioxidant capacity can be related to total phenolic and flavonoid contents. A correlation analysis revealed that ascorbic acid, gallic acid, rutin, caffeic acid, ferulic acid and sinapic acid were the phenolic compounds mainly responsible for antioxidant power of the fruit extracts.
authors.affiliation: a Faculty of Science, Department of Biology , Ilam University , Ilam , Iran.
authors.forename: Ali Asghar
authors.initials: AA
authors.lastname: Hatamnia
authors.affiliation: a Faculty of Science, Department of Biology , Ilam University , Ilam , Iran.
authors.forename: Arman
authors.initials: A
authors.lastname: Rostamzad
authors.affiliation: b Faculty of Science, Department of Biology , University of Qom , Qom , Iran.
authors.forename: Parviz
authors.initials: P
authors.lastname: Malekzadeh
authors.affiliation: c Faculty of Agriculture, Department of Plant Breeding and Biotechnology , Urmia University , Urmia , Iran.
authors.forename: Reza
authors.initials: R
authors.lastname: Darvishzadeh
authors.affiliation: d Faculty of Science, Department of Biology , Urmia University , Urmia , Iran.
authors.forename: Nasser
authors.initials: N
authors.lastname: Abbaspour
authors.affiliation: e Faculty of Agriculture, Department of Food Technology and Science , Ilam University , Ilam , Iran.
authors.forename: Mohammadyar
authors.initials: M
authors.lastname: Hosseini
authors.affiliation: f Faculty of Agriculture, Department of Plant Protection , Ilam University , Ilam , Iran.
authors.forename: Khoshnood
authors.initials: K
authors.lastname: Nourollahi
authors.affiliation: b Faculty of Science, Department of Biology , University of Qom , Qom , Iran.
authors.forename: Reza Sheikh Akbari
authors.initials: RS
authors.lastname: Mehr
mesh_terms: D000975:Antioxidants / Q000737:chemistry* / Q000494:pharmacology*; D001713:Biphenyl Compounds / Q000737:chemistry / Q000378:metabolism; D002109:Caffeic Acids / Q000032:analysis / Q000494:pharmacology; D002851:Chromatography, High Pressure Liquid; D004353:Drug Evaluation, Preclinical; D005419:Flavonoids / Q000032:analysis / Q000737:chemistry; D005638:Fruit / Q000737:chemistry; D005707:Gallic Acid / Q000032:analysis / Q000494:pharmacology; D007492:Iran; D009569:Nitric Oxide / Q000378:metabolism; D010636:Phenols / Q000032:analysis* / Q000737:chemistry / Q000494:pharmacology; D010851:Picrates / Q000737:chemistry / Q000378:metabolism; D027927:Pistacia / Q000737:chemistry*; D012431:Rutin / Q000032:analysis / Q000494:pharmacology
chemical_list: D000975:Antioxidants; D001713:Biphenyl Compounds; D002109:Caffeic Acids; D005419:Flavonoids; D010636:Phenols; D010851:Picrates; D009569:Nitric Oxide; D012431:Rutin; D005707:Gallic Acid; C004931:1,1-diphenyl-2-picrylhydrazyl; C040048:caffeic acid
keywords: antioxidant capacity; fruit; hull extract; phenolic composition