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在巴西坚果的体外生物可访问性和有毒和营养微量元素的特异化

Astrid Barkleit¹, Jiyoung Eum¹, Diana Walther²

¹Helmholtz-Zentrum Dresden-Rossendorf, Institute of Resource Ecology, 01328 Dresden, Germany.

International journal of molecular sciences

|September 13, 2025

概括

巴西坚果富含,但也含有有毒的和. 这项研究发现具有高度的生物可访问性,而和的生物可访问性较低,为坚果安全提供了洞察力.

科学领域:

食品科学食品科学食品科学
环境化学环境化学
分析化学分析化学

背景情况:

巴西坚果 (Bertholletia excelsa) 是 (Se) 的丰富来源,但也积累了 (Ba) 和放射性 (Ra) 等有毒元素.
了解这些元素的生物可访问性和化学特异性对于评估饮食风险和益处至关重要.

研究的目的:

量化巴西坚果中的Se,Ba,Sr,La,Eu和Ra放射性核酸.
评估这些元素的体外生物可访问性.
研究Se的化学特异和巴西坚果矩阵对Eu (III) 特异和化剂有效性的影响.

主要方法:

使用ICP-MS和玛光谱学量化元素和放射性核素.
在体外生物可访问性测试.
核磁共振 (NMR) 光谱用于分类.
时间分辨率激光诱导光谱学 (TRLFS) 用于化和化剂研究.

主要成果:

具有很高的生物可访问性 (≈85%),而Ba和Ra的生物可访问性较低 (每一个≈2%).
在巴西坚果中,Se主要以甲 (SeMet) 的形式被发现.
巴西坚果矩阵对Eu(III) 测试的化剂的分解效果的影响很小.

结论:

巴西坚果由于高生物可访问性而具有有利的Se概况.
巴和Ra的低生物可访问性表明,在典型的消费中,这些有毒元素的风险有限.
这些发现有助于更好地了解巴西坚果的营养和有毒物质生物可用性.

关键词:

巴西坚果面粉巴西坚果面粉土金属土金属阿尔法/马光谱法氨基碳酸盐氨基碳酸盐公司的代理人氧氨基氨基.光光谱学光发光谱学核磁共振光谱学核磁共振光谱学射线 (radium) 是一种放射性物质.是一种.

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