Chemical and functional characterization of seed, pulp and skin powder from chilto (Solanum betaceum), an Argentine native fruit. Phenolic fractions affect key enzymes involved in metabolic syndrome and oxidative stress. (1st February 2017)

• Record Type: Journal Article
• Authors: Orqueda, María Eugenia; Rivas, Marisa; Zampini, Iris Catiana; Alberto, María Rosa; Torres, Sebastian; Cuello, Soledad; Sayago, Jorge; Thomas-Valdes, Samanta; Jiménez-Aspee, Felipe; Schmeda-Hirschmann, Guillermo; Isla, María Inés
• Is Part Of: Food chemistry. Volume 216(2017)
• Page Start: 70
• Page End: 79
• Publication Date: 2017-02-01
• Subjects: GE glucose equivalent -- βCE β-carotene equivalents -- C3-GE cyanidin-3-glucoside equivalents -- PB2E procyanidin B2 equivalents -- QE quercetin equivalents -- GAE gallic acid equivalents -- PEE phenolic enriched extract -- ABTS 2, 2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) -- BHT butylated hydroxytoluene -- RBC red blood cells -- AAPH 2, 2′-azo-bis(2-amidinopropane) dihydrochloride; Solanum betaceum -- Chilto -- Seed, pulp and skin powder -- Antioxidant capacity -- Metabolic syndrome; Food -- Analysis -- Periodicals; Food -- Composition -- Periodicals; 664
• DOI: 10.1016/j.foodchem.2016.08.015
• Languages: English
• ISSNs: 0308-8146

Abstract

Highlights: Lyophilized powder from skin, pulp and seed of Solanum betaceum were investigated. The nutritional composition was assessed by standard methods. The extracts were evaluated on key enzymes to metabolic syndrome. The main phenolics were rosmarinic acid and caffeic acid derivatives. The phenolic-enriched extracts inhibited the α-glucosidase, α-amylase and lipase. Abstract: The aim of this work was to assess the nutritional and functional components of powder obtained by lyophilization of whole fruits, seeds, pulp and skin from chilto ( Solanum betaceum Cav) cultivated in the ecoregion of Yungas, Argentina. The powders have low carbohydrate and sodium content and are a source of vitamin C, carotenoid, phenolics, potassium and fiber. The HPLC–ESI-MS/MS analysis of the fractions enriched in phenolics allowed the identification of 12 caffeic acid derivatives and related phenolics, 10 rosmarinic acid derivatives and 7 flavonoids. The polyphenols enriched extracts before and after simulated gastroduodenal digestion inhibited enzymes associated with metabolic syndrome, including α-glucosidase, amylase and lipase and exhibited antioxidant activity by different mechanisms. None of the analyzed fruit powders showed acute toxicity or genotoxicity. The powders from the three parts of S. betaceum fruit may be a potential functional food and the polyphenol enriched extract of seed and skin may have nutraceutical properties.