title: Comparison of fatty acid profile and antioxidant potential of extracts of seven Citrus rootstock seeds.
abstract: The extracts of seven Citrus rootstock seeds have been compared regarding fatty acid profile and antioxidant potential. Sour orange (Citrus aurantium L.) was found to contain the highest oil amount (34%), while the Poncirus trifoliata cultivars contained the highest percentage of unsaturated fatty acids (84-87%). In addition, the antioxidant properties of the extracts from defatted seeds have been evaluated by measuring their radical scavenging activity against 2,2'-diphenyl-1-picrylhydrazyl. The highest antioxidant activities were observed in the case of the acetone extract of sour orange and Citrumelo Swingle (76% and 75%, respectively), at a concentration of 0.17 mg mL(-1). Moreover, the total phenolic content of the extracts, determined using the Folin-Ciocalteau reagent, was found to be correlated with the radical scavenging activity results. The acetone extracts of sour orange and Citrumelo Swingle exhibited the highest phenolic content [112.3 and 103.4 mg gallic acid equivalent g(-1) dry sample weight, respectively].
authors.affiliation: Department of Pharmaceutical Sciences, University of Calabria, 87036 Arcavacata di Rende (CS), Italy. p.plastina@unical.it
authors.forename: Pierluigi
authors.initials: P
authors.lastname: Plastina
authors.forename: Alessia
authors.initials: A
authors.lastname: Fazio
authors.forename: Bartolo
authors.initials: B
authors.lastname: Gabriele
mesh_terms: D000975:Antioxidants / Q000737:chemistry / Q000494:pharmacology*; D001713:Biphenyl Compounds / Q000737:chemistry; D002957:Citrus / Q000737:chemistry*; D004305:Dose-Response Relationship, Drug; D004952:Esters / Q000737:chemistry; D005227:Fatty Acids / Q000032:analysis*; D016166:Free Radical Scavengers / Q000737:chemistry / Q000494:pharmacology; D005707:Gallic Acid / Q000032:analysis; D008982:Molybdenum / Q000737:chemistry; D010636:Phenols / Q000032:analysis; D010851:Picrates / Q000737:chemistry; D010936:Plant Extracts / Q000737:chemistry* / Q000494:pharmacology*; D012639:Seeds / Q000737:chemistry; D017973:Tungsten Compounds / Q000737:chemistry
chemical_list: D000975:Antioxidants; D001713:Biphenyl Compounds; D004952:Esters; D005227:Fatty Acids; C029556:Folin's phenol reagent; D016166:Free Radical Scavengers; D010636:Phenols; D010851:Picrates; D010936:Plant Extracts; D017973:Tungsten Compounds; D005707:Gallic Acid; D008982:Molybdenum; C004931:1,1-diphenyl-2-picrylhydrazyl