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Int. J. Environ. Res. Public Health 2016, 13(6), 577; doi:10.3390/ijerph13060577

Effects of Cerium and Titanium Oxide Nanoparticles in Soil on the Nutrient Composition of Barley (Hordeum vulgare L.) Kernels

Department of Agriculture, Food, Environment and Animal Sciences, University of Udine, Via Delle Scienze 206, 33100 Udine, Italy
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Academic Editor: Mónica Amorim
Received: 1 April 2016 / Revised: 31 May 2016 / Accepted: 6 June 2016 / Published: 9 June 2016
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Abstract

The implications of metal nanoparticles (MeNPs) are still unknown for many food crops. The purpose of this study was to evaluate the effects of cerium oxide (nCeO2) and titanium oxide (nTiO2) nanoparticles in soil at 0, 500 and 1000 mg·kg−1 on the nutritional parameters of barley (Hordeum vulgare L.) kernels. Mineral nutrients, amylose, β-glucans, amino acid and crude protein (CP) concentrations were measured in kernels. Whole flour samples were analyzed by ICP-AES/MS, HPLC and Elemental CHNS Analyzer. Results showed that Ce and Ti accumulation under MeNPs treatments did not differ from the control treatment. However, nCeO2 and nTiO2 had an impact on composition and nutritional quality of barley kernels in contrasting ways. Both MeNPs left β-glucans unaffected but reduced amylose content by approximately 21%. Most amino acids and CP increased. Among amino acids, lysine followed by proline saw the largest increase (51% and 37%, respectively). Potassium and S were both negatively impacted by MeNPs, while B was only affected by 500 mg nCeO2·kg−1. On the contrary Zn and Mn concentrations were improved by 500 mg nTiO2·kg−1, and Ca by both nTiO2 treatments. Generally, our findings demonstrated that kernels are negatively affected by nCeO2 while nTiO2 can potentially have beneficial effects. However, both MeNPs have the potential to negatively impact malt and feed production. View Full-Text
Keywords: cerium oxide nanoparticles; titanium oxide nanoparticles; barley; amino acids; amylose; crude protein; macronutrients; micronutrients cerium oxide nanoparticles; titanium oxide nanoparticles; barley; amino acids; amylose; crude protein; macronutrients; micronutrients
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Pošćić, F.; Mattiello, A.; Fellet, G.; Miceli, F.; Marchiol, L. Effects of Cerium and Titanium Oxide Nanoparticles in Soil on the Nutrient Composition of Barley (Hordeum vulgare L.) Kernels. Int. J. Environ. Res. Public Health 2016, 13, 577.

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Int. J. Environ. Res. Public Health EISSN 1660-4601 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
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