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      Características físico-químicas y funcionales de la fruta kiwi en una zona tropical de altura en México Translated title: Physicochemical and functional characteristics of kiwifruit in a Mexican tropical highland

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          Abstract

          Resumen El fruto de kiwi (Actinidia deliciosa) que se consume en México es mayormente importado. Es una fruta producida en países con clima templado, y su cultivo en zonas altas tropicales ha sido poco estudiado. El objetivo del presente estudio fue evaluar algunas propiedades físico-químicas y funcionales de la fruta kiwi Tropical Highland. Esta población seleccionada es de bajo requerimiento frío invernal y se produce en una zona alta tropical de Veracruz, México. Los atributos evaluados en el fruto se compararon con los del cv. Hayward. El tamaño y peso del fruto fueron mayores en el cv. Hayward, mientras que Tropical Highland tuvo menor número de semillas, presumiblemente debido a una baja polinización. La acidez titulable y los oBrix fueron mayores en kiwi Tropical Highland. La concentración de clorofila, fenoles totales y capacidad antioxidante fueron menores en los extractos de la pulpa del kiwi Tropical Highland. En contraste, la concentración de flavonoides fue mayor en el kiwi Tropical Highland. Tropical Highland, generado en México, tuvo propiedades funcionales adecuadas y representa una nueva opción frutícola para ser considerada en otras zonas altas en los trópicos de México y Mesoamérica.

          Translated abstract

          Summary The kiwifruit (Actinidia deliciosa) consumed in Mexico is mostly imported. It is a fruit produced in countries with a temperate climate, and its cultivation in high-altitude tropical areas has been little studied. The objective of the study was to evaluate some physical-chemical and functional properties of the Tropical Highland kiwifruit. This selected population has a low winter chilling requirement and it is produced in a high-altitude tropical area of Veracruz, Mexico. The traits evaluated were compared with those of cv. Hayward. The size and weight of the fruit were greater in cv. Hayward while the Tropical Highland had fewer seeds, presumably due to poor pollination. Titratable acidity and °Brix were higher Tropical Highland kiwifruit. The chlorophyll concentration, total phenols and antioxidant capacity were lower in the extracts of the Tropical Highland kiwifruit pulp. In contrast, the flavonoids concentration was higher in the Tropical Highland kiwifruit. The Tropical Highland kiwifruit, developed in Mexico, had adequate functional properties and represents a new fruit option to be considered in other highland areas in the tropics of Mexico and Mesoamerica.

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          Antioxidant activity applying an improved ABTS radical cation decolorization assay

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            Chlorophylls and carotenoids: Pigments of photosynthetic biomembranes

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              High-throughput relative DPPH radical scavenging capacity assay.

              A high-throughput relative 2,2-diphenyl-1-picryhydrazyl (DPPH) radical scavenging capacity (RDSC) assay was developed and validated in the present study. This RDSC assay is easy to perform and has acceptable accuracy (90-110% recovery), precision [3.9-7.0% pooled relative standard deviation (RSD)], and reproducibility (2.2 and 3.5% interday and intraday RSD). This assay reports the RDSC values for antioxidant samples, which make it possible to compare the DPPH radical scavenging capacities of antioxidants determined in different laboratories. The RDSC assay may be conducted in aqueous alcohol and acetone for hydrophilic antioxidants or in the organic solvents for lipophilic antioxidants without solubilizing agents, which makes it possible to directly compare the radical scavenging capacities of hydrophilic and lipophilic antioxidants. In addition, the high-throughput RDSC assay could be utilized for EC50 value estimation. The high-throughput RDSC assay may be used for screening and investigating potential natural antioxidants.
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                Author and article information

                Journal
                rfm
                Revista fitotecnia mexicana
                Rev. fitotec. mex
                Sociedad Mexicana de Fitogenética A.C. (Chapingo, Estado de México, Mexico )
                0187-7380
                March 2021
                : 44
                : 1
                : 103-106
                Affiliations
                [2] Tlalpan Ciudad de México orgnameTecnológico de Monterrey orgdiv1Campus Ciudad de México Mexico
                [3] Huatusco orgnameUniversidad Autónoma Chapingo orgdiv1Centro Regional Universitario Oriente Mexico
                [1] Chapingo orgnameUniversidad Autónoma Chapingo orgdiv1Departamento de Preparatoria Agrícola Mexico
                Article
                S0187-73802021000100103 S0187-7380(21)04400100103
                10.35196/rfm.2021.1.103
                7cbe3c78-05c2-4723-8577-8bf5ab25e0cd

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 07 November 2020
                : 08 May 2020
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 20, Pages: 4
                Product

                SciELO Mexico

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                Notas científicas

                low chilling requirement,flavonoides,capacidad antioxidante,bajo requerimiento de frío,Actinidia deliciosa,flavonoids,antioxidant capacity

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