Biofortification with magnesium nanofertilizer on bioactive compounds and antioxidant capacity in green beans
2023
Nubia I. AMAYA-OLIVAS | Esteban SÁNCHEZ | León HERNÁNDEZ-OCHOA | Damaris L. OJEDA-BARRIOS | Graciela D. ÁVILA-QUEZADA | María A. FLORES-CÓRDOVA | David CHÁVEZ-FLORES | Juan G. AYALA-SOTO | Alondra SALCIDO-MARTÍNEZ | Carlos A. RAMÍREZ-ESTRADA
The use of nanofertilizers has the potential to be used to enrich edible organs with nutrients (biofortification) and improve the biosynthesis of bioactive compounds and their antioxidant capacity. Therefore, the objective of this study was to evaluate the effect of biofortification with magnesium (Mg) nanofertilizer on the accumulation of bioactive compounds and antioxidant capacity in green bean cv. Strike compared to a conventional fertilizer (Mg sulfate). Two sources of Mg were applied via foliar: Nanofertilizer and Mg Sulfate at doses of 0, 50, 100, 200, and 300 mg/L of Mg. The accumulation of total polyphenols, flavonoids, anthocyanins, bioactive compounds, and antioxidant capacity was evaluated in pods. The results obtained in this research confirm the effect of green bean pods biofortified with Mg nanofertilizers on the production and accumulation of bioactive compounds and antioxidant capacity, improving the nutrition and nutraceutical quality of green beans. The 50 mg/L dose of Mg nanofertilizer was the most effective treatment to increase bioactive compounds and antioxidant capacity compared to high doses of Mg sulfate (300 mg/L). This is one of the first studies focused on biofortification with Mg nanofertilizers and their effect on the nutraceutical quality of green beans.
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