Effect of metal oxide nanoparticles on amino acids in wheat grains (Triticum aestivum) in a life cycle study
| Autor: | Fuping Jiang, Daniel C.W. Tsang, Chuanxin Ma, Yaoyao Wang, Baoshan Xing, Yukui Rui |
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| Rok vydání: | 2019 |
| Předmět: |
Environmental Engineering
0208 environmental biotechnology Metal Nanoparticles 02 engineering and technology 010501 environmental sciences Management Monitoring Policy and Law 01 natural sciences Food science Amino Acids Threonine Waste Management and Disposal Triticum health care economics and organizations Histidine 0105 earth and related environmental sciences chemistry.chemical_classification Chemistry Crop yield technology industry and agriculture food and beverages Oxides General Medicine 020801 environmental engineering Amino acid Fungicide Metals Composition (visual arts) Leucine Isoleucine Copper |
| Zdroj: | Journal of Environmental Management. 241:319-327 |
| ISSN: | 0301-4797 |
| DOI: | 10.1016/j.jenvman.2019.04.041 |
| Popis: | Engineered nanoparticles (NPs) are now used as additives in pesticides and fungicides and as novel fertilizers in agriculture so there is an urgent need to explore their effects on crop yield and quality in a full life cycle study. In the present study, three widely used NPs (TiO2, Fe2O3 and CuO NPs applied at doses of 50 and 500 mg/kg) were selected to investigate their long-term impact on wheat growth. TiO2 NPs did not affect the growth and development of wheat, but Fe2O3 NPs promoted wheat precocity and CuO NPs inhibited the growth and development of the wheat grains. The Cu content in grains treated with CuO NP increased by 18.84%–30.45% compared with the control. However, the contents of Fe and Zn were both significantly lower in the CuO NP treatments. Univariate and multivariate analyses were used to analyze the effect of different NPs on the composition of amino acids in wheat grains. Exposure to TiO2 NPs at dose of 500 mg/kg increased the overall amino acid nutrition in the edible portion of wheat. Fe2O3 NPs at both doses increased the contents of cysteine (Cys) and tyrosine (Tyr). The addition of CuO NPs reduced the level of some essential amino acids in wheat grains, isoleucine (Ile), leucine (Leu), threonine (Thr) and histidine (His). Overall, evaluation of the potential impacts of metal-based NPs on the nutritional quality of wheat grains could provide important information for their safe use when incorporated into agrichemicals in sustainable agriculture. |
| Databáze: | OpenAIRE |
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