Enhancing Nutritional and Functional Properties of Broccoli Leaves Through Selenium Biofortification : Potential for Sustainable Agriculture and Bioactive Compound Valorization
Buttarelli, Melina Soledad (Univerdidad Nacional del Litoral)
Céccoli, Gabriel (Univerdidad Nacional del Litoral)
Trod, Betiana Soledad (Univerdidad Nacional del Litoral)
Stoffel, María Micaela (Universidad Nacional del Litoral (Argentina))
Simonutti, Marianela (Univerdidad Nacional del Litoral)
Bouzo, Carlos Alberto (Univerdidad Nacional del Litoral)
Turowski, Valeria Rosana (Universidad Nacional de Mar del Plata)
Perez, Adrián Alejandro (Univerdidad Nacional del Litoral)
Llugany i Ollé, Mercè (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
Sánchez-Martín, María-Jesús (Universitat Autònoma de Barcelona. Departament de Química)
Daurelio, Lucas Damián (Univerdidad Nacional del Litoral)
Guevara, María Gabriela (Universidad Nacional de Mar del Plata)
Muñoz, Fernando Felipe (Universidad Nacional del Litoral (Argentina))

Data:	2025
Resum:	Selenium (Se) biofortification is a promising agronomic strategy to enhance the dietary intake of this essential micronutrient while simultaneously adding value to agricultural by-products like Brassica oleracea L. var. italica leaves. This study evaluated the effects of foliar Se biofortification on a fresh market broccoli cultivar ('Belstar') using selenite and selenate (1 and 2 mM). Growth performance, biochemical properties, nutraceutical quality, and phytohormone profiles of broccoli leaves were analyzed, highlighting their potential as functional by-products. Multivariate analysis revealed that 2 mM selenite application was the most effective treatment, significantly improving several parameters. Selenium biofortification with 2 mM selenite increased essential nutrient content, including Se, Ca, S, Fe, Mn, Mg, and Mo. It also enhanced the soluble protein content (+2. 2-fold), phenolic compounds (+1. 5-fold), and total antioxidant capacity (+1. 4-fold) compared to control plants. In this sense, the nutraceutical quality of broccoli leaves was markedly improved, supporting their use as a source of bioactive ingredients. Additionally, to assess practical applications, water-extracted Se-enriched broccoli leaves demonstrated antifungal activity against the plant pathogen Fusarium solani, attributed to Se-induced alterations in phytohormone profiles. These findings suggest that Se-biofortified broccoli leaves can serve as a sustainable source of essential nutrients and bioactive compounds for the food industry. Furthermore, their antifungal properties position them as potential eco-friendly biopesticides to combat plant pathogenic fungi, thereby promoting sustainable agriculture.
Ajuts:	European Commission 101007630
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Brassicaceae ; Selenate ; Selenite ; By-products ; Fusarium solani
Publicat a:	Agronomy, Vol. 15, Issue 2 (February 2025) , art. 389, ISSN 2073-4395

DOI: 10.3390/agronomy15020389

22 p, 1.9 MB

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