Journal
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
Volume 105, Issue -, Pages -Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jfca.2021.104220
Keywords
Sustainability; Hydrosustainable crops; Phytochemicals; Bioactives; Functional foods; Commercial quality; Carotenoids; Phenolics
Categories
Funding
- Secretaria Nacional de Educacion Superior, Ciencia, Tecnologia e Innovacion (SENESCYT) -Ecuador
- Spanish State Secretariat of Research, Development and Innovation (Ministry of Economy and Competitiveness) [AGL2012-37610]
- FEDER
- Ibero-American Programme for Science, Technology and Development (CYTED) [112RT0445]
- Carotenoid Network: from microbial and plants to food and health (CaRed) - Spanish Ministry of Economy and Competitiveness [BIO2015-71703-REDT]
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The study revealed that regulated deficit irrigation can help maintain the size and weight of black tomatoes while also increasing the carotenoid levels in the fruits.
In this preliminary study, the effect of regulated deficit irrigation (RDI) on the commercial quality (size, weight, soluble solids, firmness and colour), content of carotenoids, phenolics and sugars of black tomato (Solanum lycopersicum L.) 'Sunchocola' was studied. Two water irrigation treatments were applied: regulated deficit irrigation (RDI) and control with 82,7 and 398 mm of water supplied, respectively. Tomato of the first cluster harvested at three stages of maturity were studied. The size and weight of the tomato did not present significant differences regarding the RDI and maturity. In both groups the concentration of carotenoids and phenolics increased with the degree of maturity (on average 57 % and 8 % respectively). On the other hand, in most cases, the content of carotenoids, phenolics and sugars showed significant differences between irrigation treatments (p < 0.1). In conclusion, with the application of the RDI, it was possible to maintain the size and weight and increase the carotenoid levels of the fruits.
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