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Chemical composition of table olive wastewater and its relationship with the bio-fortifying capacity of tomato (Solanum lycopersicum L.) plants

AuthorsSantos, Berta de los; Medina Pradas, Eduardo CSIC ORCID ; Brenes Balbuena, Manuel CSIC ORCID ; Aguado, Ana; García García, Pedro CSIC ORCID CVN ; Romero Barranco, Concepción CSIC ORCID
Phenolic compounds
Mediterranean crops
Issue Date20-Jan-2020
CitationAgricultural Water Management 227: 105833 (2020)
AbstractRecently, the potential use as fertilizer of some wastewaters from table olive factories has been reported but the cause of this activity has not been disclosed up to now. In this study, a huge number of table olive waste solutions were analyzed from three consecutive seasons. Sugars, phenolic and mineral compounds were the main chemical groups identified. The individual effect of these components was tested on the growth of tomato plants and the quality of their fruits. Two factorial designs were assayed (24 and 23), in which the individual groups of chemical substances were sugars, minerals (nitrogen, potassium and phosphor), simple and polymeric phenols. Also, fresh wash water from Spanish-style green table olive processing was tested. The main conclusion was that no one individual group caused the fertilizer activity but a synergetic action of all of them was efficient and the fresh waste solution tested was the most effective.
Description32 Páginas.-- 4 Figuras.-- 4 Tablas.-- 2 Tablas suplementarias
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