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首页> 外文期刊>International Journal of Environmental Research and Public Health >Effects of Cerium and Titanium Oxide Nanoparticles in Soil on the Nutrient Composition of Barley (Hordeum vulgare L.) Kernels
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Effects of Cerium and Titanium Oxide Nanoparticles in Soil on the Nutrient Composition of Barley (Hordeum vulgare L.) Kernels

机译：土壤中的铈和钛氧化物纳米颗粒对大麦仁营养成分的影响

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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.
机译：金属纳米颗粒（MeNPs）的含义在许多粮食作物中仍然未知。这项研究的目的是评估土壤中0、500和1000 mg·kg？1的氧化铈（nCeO2）和氧化钛（nTiO2）纳米颗粒对大麦（Hordeum vulgare L.）谷粒营养参数的影响。在籽粒中测量了矿物质营养素，直链淀粉，β-葡聚糖，氨基酸和粗蛋白（CP）的浓度。通过ICP-AES / MS，HPLC和Elemental CHNS Analyzer分析全粉样品。结果表明，MeNPs处理下的Ce和Ti积累与对照处理没有差异。然而，相反，nCeO2和nTiO2对大麦仁的组成和营养品质有影响。两种MeNP均不影响β-葡聚糖，但直链淀粉含量降低了约21％。大多数氨基酸和CP增加。在氨基酸中，赖氨酸紧随其后的是脯氨酸，增幅最大（分别为51％和37％）。钾和硫都受MeNPs的不利影响，而硼仅受500 mg nCeO2·kg？1的影响。相反，通过两种nTiO2处理，Zn和Mn浓度分别提高了500 mg nTiO2·kg？1和Ca。通常，我们的研究结果表明，nCeO2对谷粒有负面影响，而nTiO2可能具有有益的作用。但是，两种MeNP都可能对麦芽和饲料生产产生负面影响。

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