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Open AccessArticle

Impact of Silicon Nanoparticles on the Antioxidant Compounds of Tomato Fruits Stressed by Arsenic

1
Doctorado en Ciencias en Agricultura Protegida, Universidad Autónoma Agraria Antonio Narro, Saltillo, Coahuila 25315, Mexico
2
IPICyT, Instituto Potosino de Investigación Científica y Tecnológica, San Luis Potosí SLP 78216, Mexico
3
Centro de Investigación en Química Aplicada, Saltillo, Coahuila 25294, Mexico
4
Departamento de Horticultura, Universidad Autónoma Agraria Antonio Narro, Saltillo, Coahuila 25315, Mexico
5
Colegio de Postgraduados Campus Tabasco, H. Cárdenas, Tabasco 86570, Mexico
6
CONACyT-Departamento de Horticultura, Universidad Autónoma Agraria Antonio Narro, Saltillo, Coahuila 25315, Mexico
7
Departamento de Botánica, Universidad Autónoma Agraria Antonio Narro, Saltillo, Coahuila 25315, Mexico
*
Author to whom correspondence should be addressed.
Foods 2019, 8(12), 612; https://doi.org/10.3390/foods8120612
Received: 23 October 2019 / Revised: 19 November 2019 / Accepted: 20 November 2019 / Published: 23 November 2019
Tomato fruit is rich in antioxidant compounds such as lycopene and β-carotene. The beneficial effects of the bioactive compounds of tomato fruit have been documented as anticancer activities. The objective of this research was to determine whether arsenic (As) causes changes in the content of antioxidant compounds in tomato fruits and whether Silicon nanoparticles (SiO2 NPs) positively influence them. The effects on fruit quality and non-enzymatic antioxidant compounds were determined. The results showed that As decreased the oxide-reduction potential (ORP), while lycopene and β-carotene were increased by exposure to As at a low dose (0.2 mg L−1), and proteins and vitamin C decreased due to high doses of As in the interaction with SiO2 NPs. A dose of 250 mg L−1 of SiO2 NPs increased glutathione and hydrogen peroxide (H2O2), and phenols decreased with low doses of As and when they interacted with the NPs. As for the flavonoids, they increased with exposure to As and SiO2 NPs. The total antioxidant capacity, determined by the ABTS (2,2´-azino-bis[3-ethylbenzthiazolin-6-sulfonic acid]) test, showed an increase with the highest dose of As in the interaction with SiO2 NPs. The application of As at low doses induced a greater accumulation of bioactive compounds in tomato fruit; however, these compounds decreased in high doses as well as via interaction with SiO2 NPs, indicating that there was an oxidative burst. View Full-Text
Keywords: bioactive compounds; oxidative stress; lycopene; hydrogen peroxide; β-carotene bioactive compounds; oxidative stress; lycopene; hydrogen peroxide; β-carotene
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González-Moscoso, M.; Martínez-Villegas, N.V.; Cadenas-Pliego, G.; Benavides-Mendoza, A.; Rivera-Cruz, M.C.; González-Morales, S.; Juárez-Maldonado, A. Impact of Silicon Nanoparticles on the Antioxidant Compounds of Tomato Fruits Stressed by Arsenic. Foods 2019, 8, 612.

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