title: Characterization and quantitation of anthocyanins and other phenolics in native Andean potatoes.
abstract: Andean potatoes are gaining popularity not only for their appealing colors and culinary uses but also for their potential higher content of polyphenolic compounds. The objective of this study was to identify potato varieties with increased phenolic content. This was achieved through characterization and quantitation of the phenolic composition in 20 varieties of native Andean potatoes from 4 different Solanum species with different colors. Major quantitative and qualitative differences among evaluated samples were more dependent on the coloration of the extracted sample rather than on the species. The most predominant anthocyanidins were petunidin-3-coumaroylrutinoside-5-glucoside and pelargonidin-3-coumaroylrutinoside-5-glucoside in purple and red potato extracts, respectively, while chlorogenic acid and its isomers were the main phenolic compund (43% of the total phenolic content). Our study suggested that the appropriate selection of native potatoes could provide new sources of polyphenolics with health promoting properties and natural pigments with increased stability for food applications.
authors.affiliation: Department of Food Science and Technology, The Ohio State University , 110 Parker Food Science and Technology Building, 2015 Fyffe Road, Columbus, Ohio 43210, United States.
authors.forename: M Monica
authors.initials: MM
authors.lastname: Giusti
authors.forename: Maria Fernanda
authors.initials: MF
authors.lastname: Polit
authors.forename: Huseyin
authors.initials: H
authors.lastname: Ayvaz
authors.forename: David
authors.initials: D
authors.lastname: Tay
authors.forename: Ivan
authors.initials: I
authors.lastname: Manrique
mesh_terms: D000872:Anthocyanins / Q000737:chemistry*; D000975:Antioxidants / Q000737:chemistry; D003116:Color; D010568:Peru; D010636:Phenols / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry*; D035281:Plant Tubers / Q000737:chemistry* / Q000145:classification; D011198:Solanum tuberosum / Q000737:chemistry* / Q000145:classification
chemical_list: D000872:Anthocyanins; D000975:Antioxidants; D010636:Phenols; D010936:Plant Extracts