Selenium in bread wheat (Triticum aestivum L.) grown in Buenos Aires, Argentina

IF 3.6 3区医学 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY Journal of Trace Elements in Medicine and Biology Pub Date : 2025-06-01 Epub Date: 2025-03-05 DOI:10.1016/j.jtemb.2025.127629

Andrés Fabián Pighín , Emiliano Camilli , Ana Clara Chirillano , María Emilia Villanueva , Laura Natalia Rigacci

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Abstract

Background

Selenium (Se) is an essential micronutrient for humans, but little information is available on its nutritional status in the Argentine population.

Objective

The aim of this study is to obtain reliable and representative data on Se content in bread wheat (Triticum aestivum L.) from the Buenos Aires province.

Methods

The content of the micronutrient Se was determined in 242 samples of bread wheat grains (Triticum aestivum L.) from 75 districts in Buenos Aires, Argentina (representing 75 % of the wheat-producing districts in the province). Se determination was carried out by atomic absorption with hydride generation.

Results

The Se content varied across the districts; in some of them, the Se levels were below the LOD (10 µg kg⁻¹), while the highest content found was around 114 µg kg⁻¹. The average content ( ± standard deviation) of Se in the analyzed grains was 29.90 ( ± 51.30) µg kg⁻¹. This concentration is considered marginal or deficient according to various authors. It reflects both a low contribution of Se to diets and its low bioavailability in soils.

Conclusion

Further research on the Se nutritional status of the population is needed. So far, existing studies suggest a sub-optimal nutritional status, and regarding the Se content of wheat grown in Buenos Aires, it seems to be lower than the minimum recommended to maintain an adequate nutritional status through the consumption of dry plant foods. If these results are confirmed, it would be appropriate to implement strategic policies to promote the increase of Se consumption by the population. Fertilisation of wheat crops is recommended because it is a sure way to increase the Se content in the whole food chain.

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阿根廷布宜诺斯艾利斯生长的面包小麦（Triticum aestivum L.）中的硒

硒（Se）是人类必需的微量营养素，但关于其在阿根廷人口中的营养状况的信息很少。目的研究布宜诺斯艾利斯面包小麦（Triticum aestivum L.）中硒含量的可靠和有代表性的数据。方法对阿根廷布宜诺斯艾利斯市75个区（占全省小麦产区的75% %）242份面包小麦（Triticum aestivum L.）样品进行微量元素硒含量测定。采用原子吸收-发生氢化物法测定硒。结果不同地区硒含量差异较大；部分样品硒含量低于限定限（10 µg kg−1），最高硒含量约为114 µg kg−1。籽粒硒的平均含量（ ± 标准差）为29.90（ ± 51.30）µg kg−1。根据不同的作者，这种集中被认为是边缘的或有缺陷的。这既反映了硒对日粮的低贡献，也反映了硒在土壤中的低生物利用度。结论需要进一步研究人群硒营养状况。到目前为止，现有的研究表明，在布宜诺斯艾利斯种植的小麦的硒含量似乎低于通过食用干性植物性食物来维持足够营养状态的最低推荐值。如果这些结果得到证实，实施促进人口硒消费增加的战略政策是适当的。建议对小麦作物施肥，因为这是增加整个食物链中硒含量的可靠方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Trace Elements in Medicine and Biology 医学-内分泌学与代谢

CiteScore

6.60

自引率

2.90%

发文量

202

审稿时长

85 days

期刊介绍： The journal provides the reader with a thorough description of theoretical and applied aspects of trace elements in medicine and biology and is devoted to the advancement of scientific knowledge about trace elements and trace element species. Trace elements play essential roles in the maintenance of physiological processes. During the last decades there has been a great deal of scientific investigation about the function and binding of trace elements. The Journal of Trace Elements in Medicine and Biology focuses on the description and dissemination of scientific results concerning the role of trace elements with respect to their mode of action in health and disease and nutritional importance. Progress in the knowledge of the biological role of trace elements depends, however, on advances in trace elements chemistry. Thus the Journal of Trace Elements in Medicine and Biology will include only those papers that base their results on proven analytical methods. Also, we only publish those articles in which the quality assurance regarding the execution of experiments and achievement of results is guaranteed.