title: Phenolic content and antioxidant properties of seeds from different grape cultivars grown in Iran.
abstract: This study investigated the antioxidant activity and phenolic composition of seed extracts from three grape cultivars grown in Iran. Folin Ciocalteu method was used for the determination of the total phenolic contents and GC-MS was used for the analysis of phenolic compositions. 1,1-diphenyl-2-picrylhydrazyl (DPPH) method was used to evaluate the antioxidant activity. The highest and the lowest total phenolic contents of seed extract were found in the black and green grape, respectively. The content of individual phenols such as Frulic acid, Gentistic acid, Syringic acid, (+) Catechin, Chlorogenic acid and (-)- Epicatchin gallate was cultivars dependent. The antioxidant activity of the seed extracts ranged from 34.03% (Green) to 53.63% (Black). Generally, the Black grape seed extract with the total phenolic content (3 ± 0.01 mg tannic acid/g DM), DPPH (53.63 ± 0.34%), IC50and AEAC (7.41 and 16.92 mg/mL) showed the highest level of total antioxidant capacity.
authors.affiliation: a Department of Fisheries , University of Zabol , Zabol , Iran.
authors.forename: Vasigheh Sadat
authors.initials: VS
authors.lastname: Mirbagheri
authors.affiliation: a Department of Fisheries , University of Zabol , Zabol , Iran.
authors.forename: Ebrahim
authors.initials: E
authors.lastname: Alizadeh
authors.affiliation: b Department of Animal Science , University of Zabol , Zabol , Iran.
authors.forename: Mostafa
authors.initials: M
authors.lastname: Yousef Elahi
authors.affiliation: c Department of Biology , University of Zabol , Zabol , Iran.
authors.forename: Sedigheh
authors.initials: S
authors.lastname: Esmaeilzadeh Bahabadi
mesh_terms: D000975:Antioxidants / Q000032:analysis* / Q000737:chemistry / Q000494:pharmacology; D001713:Biphenyl Compounds; D056604:Grape Seed Extract / Q000032:analysis*; D020128:Inhibitory Concentration 50; D007492:Iran; D010636:Phenols / Q000032:analysis* / Q000737:chemistry; D010851:Picrates; D012639:Seeds / Q000737:chemistry; D027843:Vitis / Q000737:chemistry*
chemical_list: D000975:Antioxidants; D001713:Biphenyl Compounds; D056604:Grape Seed Extract; D010636:Phenols; D010851:Picrates; C004931:1,1-diphenyl-2-picrylhydrazyl
keywords: DPPH; Grape cultivar; antioxidant activity; phenolic content