First Web-Based Database on Total Phenolics and Oxygen Radical Absorbance Capacity (ORAC) of Fruits Produced and Consumed within the South Andes Region of South America |
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Authors: | Speisky Hernan López-Alarcón Camilo Gómez Maritza Fuentes Jocelyn Sandoval-Acuña Cristian |
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Institution: | Laboratory of Antioxidants, Nutrition and Food Technology Institute (INTA), ?Facultad de Quimica, Pontificia Universidad Católica de Chile, and #Faculty of Chemical and Pharmaceutical Sciences, University of Chile , Santiago, Chile. |
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Abstract: | This paper reports the first database on antioxidants contained in fruits produced and consumed within the south Andes region of South America. The database ( www.portalantioxidantes.com ) contains over 500 total phenolics (TP) and ORAC values for more than 120 species/varieties of fruits. All analyses were conducted by a single ISO/IEC 17025-certified laboratory. The characterization comprised native berries such as maqui ( Aristotelia chilensis ), murtilla ( Ugni molinae ), and calafate ( Barberis microphylla ), which largely outscored all other studied fruits. Major differences in TP and ORAC were observed as a function of the fruit variety in berries, avocado, cherries, and apples. In fruits such as pears, apples, apricots, and peaches, a significant part of the TP and ORAC was accounted for by the antioxidants present in the peel. These data should be useful to estimate the fruit-based intake of TP and, through the ORAC data, their antioxidant-related contribution to the diet of south Andes populations. |
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