Ingestion of Japanese plums (Prunus salicina Lindl. cv. Crimson Globe) increases the urinary 6 sulfatoxymelatonin and total antioxidant capacity levels in young, middle-aged and elderly humans: Nutritional and functional characterization of their content
2011
González-Flores, D., University of Extremadura, Badajoz (Spain) | Velardo, B. | Garrido, M. | González-Gómez, D. | Lozano, M. | Ayuso, M. C. | Barriga, C. | Paredes, S. D. | Rodríguez, A. B.
Plums are considered a source of phytochemicals with beneficial health effects. The study was aimed at characterizing Japanese plums (Prunus salicina Lindl. cv. Crimson Globe) nutritionally and functionally and evaluating the antioxidant effect of a plum-enriched diet in young, middle-aged and elderly individuals. Participants consumed 195 g of plums twice a day for 5 days. First-void morning urines were collected before treatment (basal values), the immediate day after the last ingestion of plums (assay), and 1 day afterwards (post-assay), subsequently, urinary 6-sulfatoxymelatonin (aMT6-s) and total antioxidant capacity were measured. Nutritionally, plums were shown to contain low amounts of saccharides. From a functional point of view, serotonin, melatonin, phenolic compounds and anthocyanins were detected. Fruit consumption increased significantly the participants urinary aMT6-s and total antioxidant capacity levels in relation to their corresponding basal and post-assay values. Plums may be taken as a source of antioxidants with a potential to counteract oxidation.
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