title: Antioxidant activity and chemical difference in fruit of different Actinidia sp.
abstract: The present research aimed at evaluating the vitamin C, total phenolic content (TPC), phenolic compounds, carotenoids, and chlorophyll contents, as well as antioxidant activity (AAC) of six Actinidia species fruit. Vitamin C, phenolic compounds, carotenoids and chlorophylls were measured using high-performance liquid chromatography. TPC was determined using the Folin-Ciocalteau reagent, and AAC using 2,2-diphenyl-1-picryl hydrazyl (DPPH) assay. The highest concentrations of vitamin C and TPC were found for Actinidia kolomikta fruit (1008.3 and 634.1 mg/100 g fresh weight [FW], respectively). Among phenolic compounds, seven phenolic acids and three flavonoids were identified. The 2,5-dihydroxybenzoic acid prevailed in A. kolomikta (425.54 mg/100 g FW), while tannic acid dominated in other species (4.63-100.43 mg/100 g FW). The largest amounts of chlorophylls and carotenoids were identified as Actinidia macrosperma (4.02 and 2.09 mg/100 g FW, respectively). The AAC of fruit extracts decreased in the order of A. kolomikta > Actinidia purpurea > Actinidia melanandra > A. macrosperma > Actinidia arguta > Actinidia deliciosa according to the DPPH assay.
authors.affiliation: Department of Environmental Protection, Faculty of Horticulture and Landscape Architecture, Warsaw University of Life Sciences-SGGW, Ul. Nowoursynowska 159, 02-776 Warsaw, Poland. piotr_latocha@sggw.pl
authors.forename: Piotr
authors.initials: P
authors.lastname: Latocha
authors.forename: Tomasz
authors.initials: T
authors.lastname: Krupa
authors.forename: Rafał
authors.initials: R
authors.lastname: Wołosiak
authors.forename: Elwira
authors.initials: E
authors.lastname: Worobiej
authors.forename: Jacek
authors.initials: J
authors.lastname: Wilczak
mesh_terms: D029042:Actinidia / Q000737:chemistry* / Q000145:classification / Q000235:genetics; D000975:Antioxidants / Q000032:analysis / Q000494:pharmacology*; D001205:Ascorbic Acid / Q000032:analysis* / Q000494:pharmacology; D001713:Biphenyl Compounds; D002338:Carotenoids / Q000032:analysis; D002734:Chlorophyll / Q000032:analysis; D002851:Chromatography, High Pressure Liquid; D005419:Flavonoids / Q000032:analysis*; D005638:Fruit / Q000737:chemistry*; D010636:Phenols / Q000032:analysis*; D010802:Phylogeny; D010851:Picrates; D010936:Plant Extracts / Q000737:chemistry* / Q000494:pharmacology; D059808:Polyphenols; D013045:Species Specificity; D013634:Tannins / Q000032:analysis
chemical_list: D000975:Antioxidants; D001713:Biphenyl Compounds; D005419:Flavonoids; D010636:Phenols; D010851:Picrates; D010936:Plant Extracts; D059808:Polyphenols; D013634:Tannins; D002734:Chlorophyll; D002338:Carotenoids; C004931:1,1-diphenyl-2-picrylhydrazyl; D001205:Ascorbic Acid