title: Influence of orange cultivar and mandarin postharvest storage on polyphenols, ascorbic acid and antioxidant activity during gastrointestinal digestion.
abstract: Polyphenols, ascorbic acid content and antioxidant activity of two sweet oranges (Navel-N and Cara Cara-CC) and mandarin (Clementine-M) as well as their bioaccessibilities were evaluated in pulps and compared to those in fresh juice. Thus, pulps of oranges and mandarins displayed higher hesperidin (HES), narirutin (NAR), total flavonoids (TF), total phenols (TP) and antioxidant activity (AAC) than their corresponding juices. Also, CC products presented higher bioactive compounds content than N ones. Bioaccessibility of bioactive compounds and AAC were higher in pulps of both oranges and mandarin than in their corresponding juices. Oranges (N and CC) pulps and juices presented higher bioaccessibilities than mandarin ones. The postharvest storage of mandarin at 12°C during 5weeks not only produced a significant increase of the bioactive compounds but also an increase of their bioaccessibility. The bioaccessibility of Citrus bioactive compounds is necessary for calculating more accurately their daily intake amount.
authors.affiliation: Department of Characterization, Quality and Safety, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), C/ José Antonio Novais 10, ES-28040 Madrid, Spain. Electronic address: ancos@ictan.csic.es.
authors.forename: Begoña
authors.initials: B
authors.lastname: De Ancos
authors.affiliation: Nutrition and Food Science Area, Faculty of Pharmacy, University of Valencia, Av. Vicente Andrés Estellés s/n, ES-46100 Burjassot, Valencia, Spain. Electronic address: antonio.cilla@uv.es.
authors.forename: Antonio
authors.initials: A
authors.lastname: Cilla
authors.affiliation: Nutrition and Food Science Area, Faculty of Pharmacy, University of Valencia, Av. Vicente Andrés Estellés s/n, ES-46100 Burjassot, Valencia, Spain. Electronic address: reyes.barbera@uv.es.
authors.forename: Reyes
authors.initials: R
authors.lastname: Barberá
authors.affiliation: Department of Characterization, Quality and Safety, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), C/ José Antonio Novais 10, ES-28040 Madrid, Spain. Electronic address: csanchezm@ictan.csic.es.
authors.forename: Concepción
authors.initials: C
authors.lastname: Sánchez-Moreno
authors.affiliation: Department of Food Biotechnology and Microbiology, Institute of Food Science Research (CIAL, CSIC-UAM), C/ Nicolás Cabrera 9, Campus de la Universidad Autónoma de Madrid, ES-28049 Madrid, Spain. Electronic address: mpcano@csic.es.
authors.forename: M Pilar
authors.initials: MP
authors.lastname: Cano
mesh_terms: D000975:Antioxidants / Q000032:analysis / Q000737:chemistry; D001205:Ascorbic Acid / Q000032:analysis* / Q000737:chemistry; D002957:Citrus / Q000737:chemistry*; D005419:Flavonoids / Q000032:analysis* / Q000737:chemistry; D061353:Food Storage; D005638:Fruit / Q000737:chemistry*; D010084:Oxidation-Reduction; D059808:Polyphenols / Q000032:analysis* / Q000737:chemistry
chemical_list: D000975:Antioxidants; D005419:Flavonoids; D059808:Polyphenols; D001205:Ascorbic Acid
keywords: Ascorbic acid; Citrus fruits; In vitro gastrointestinal digestion; Polyphenols; Total antioxidant activity