This work aimed to investigate the effect of selenium (Se) and irrigation on the grain yield, on the forms of Se, phenols, carotenes and on some antioxidant activities of maize (Zea mays L.) grains. To reach this goal, a two-year experiment was undertaken. Maize was fertigated with sodium selenite at the rate of 200 g Se ha−1 and grown under two water regimes. While the irrigation did not show a clear effect on the selected parameters, Se fertigation increased the contents of inorganic and organic Se forms, xanthophyll, and salicylic acid. Furthermore, while Se fertigation decreased the hydroxycinnamic acids content, generally higher antioxidant activities were found in Se treated grains than in the control. These findings suggest that, Se fertigation increases most of the nutraceutical values of maize grains which, therefore, might improve the humans and livestock health and could increase the maize grain shelf life and its by-products.

Zea mays L. Grain: Increase in Nutraceutical and Antioxidant Properties Due to Se Fortification in Low and High Water Regimes

D'Amato Roberto
Formal Analysis
;
De Feudis Mauro
Writing – Original Draft Preparation
;
Guiducci Marcello
Supervision
;
Businelli Daniela
Writing – Review & Editing
2019

Abstract

This work aimed to investigate the effect of selenium (Se) and irrigation on the grain yield, on the forms of Se, phenols, carotenes and on some antioxidant activities of maize (Zea mays L.) grains. To reach this goal, a two-year experiment was undertaken. Maize was fertigated with sodium selenite at the rate of 200 g Se ha−1 and grown under two water regimes. While the irrigation did not show a clear effect on the selected parameters, Se fertigation increased the contents of inorganic and organic Se forms, xanthophyll, and salicylic acid. Furthermore, while Se fertigation decreased the hydroxycinnamic acids content, generally higher antioxidant activities were found in Se treated grains than in the control. These findings suggest that, Se fertigation increases most of the nutraceutical values of maize grains which, therefore, might improve the humans and livestock health and could increase the maize grain shelf life and its by-products.
2019
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11391/1454414
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