Antioxidants (carotenoids and phenolics) profile of cherry tomatoes as influenced by deficit irrigation, ripening and cluster.

Auteur(s) :
Meléndez-Martínez AJ., Coyago-Cruz E., Corell M., Moriana A., Hernanz D., Benítez-González AM., Stinco CM.
Date :
Fév, 2018
Source(s) :
Food chemistry. #240 p870-884
Adresse :
Dpto. Ciencias Agroforestales, Universidad de Sevilla, Escuela Técnica Superior de Ingeniería Agronómica, Carretera de Utrera Km 1, 41013 Sevilla, Spain; Food Colour & Quality Lab., Department of Nutrition & Food Science, Universidad de Sevilla, Facultad de Farmacia, 41012 Sevilla, Spain; Carrera de Ingeniería en Biotecnología de los Recursos Naturales, Universidad Politécnica Salesiana, Sede Quito, Campus El Girón, Av. 12 de Octubre, Quito, Ecuador. Electronic address: [email protected].

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The purpose of this study was to assess the relationship between the effect of regulated deficit irrigation, cluster, developmental stages and two seasons (autumn 2015 and spring 2016) on the commercial and functional quality (carotenoids and plenolics levels) in 'Lazarino' and 'Summerbrix' tomatoes. Autumn had a positive effect on the commercial quality, with larger fruits (22% in 'Summerbrix'; 26% in 'Lazarino') and higher soluble solids (16% in 'Summerbrix'; 12% in 'Lazarino'). Total carotenoids did not change significantly with irrigation and variety while total phenolics did with the cluster and season. In most cases, the main amounts of carotenoids and phenolic were found in the higher cluster and carotenoids in ripe fruit. Thus, irrigation of such varieties could be reduced drastically (ca. 80%) without affecting considerably the overall quality of their fruits (changes not greater than 30%).

Source : Pubmed
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