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

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%).Ministerio de Economía y Competitividad AGL2012-37610, BIO2015-71703-RED

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

15 páginas.-- 2 figuras.-- 3 tablas.-- 40 referenciasThe 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%).The authors want to thank the Secretaría Nacional de Educación Superior, Ciencia, Tecnología e Innovación (SENESCYT) - Ecuador for its financial support and the technical staff of Biology Service (SGI, Universidad de Sevilla) for the services offered. AJMM acknowledges funding from the Spanish State Secretariat of Research, Development and Innovation (Ministry of Economy and Competitiveness, project ref. AGL2012-37610, co-funded by FEDER). ECC, DH, AMBG, CMS and AJMM thank the Ibero-American Programme for Science, Technology and Development (CYTED, http://www.cyted.org) for the funding of the IBERCAROT network (http://carotenoides.us.es.ref.112RT0445). AJMM acknowledges funding from the Carotenoid Network: from microbial and plants to food and health (CaRed), funded by the Spanish Ministry of Economy and Competitiveness (BIO2015-71703-REDT).Peer reviewe