相关实验视频

Updated: Jul 2, 2026

An Anaerobic Biosensor Assay for the Detection of Mercury and Cadmium

An Anaerobic Biosensor Assay for the Detection of Mercury and Cadmium

Published on: December 17, 2018

在海鲜中金属和矿物质的综合风险评估,使用生物可访问性纠正

Ștefania-Adelina Milea¹, Ira-Adeline Simionov^1,2, Nina-Nicoleta Lazăr¹

¹REXDAN Research Infrastructure, "Dunărea de Jos" University of Galati, 98 George Coșbuc Street, 800385 Galati, Romania.

Journal of xenobiotics

|June 25, 2025

概括

评估了各种物种的海鲜生物可访问性和健康风险. 虽然的生物可访问性显著增加,但重金属的整体风险很低,这表明安全消费.

科学领域:

食品科学和毒理学食品科学和毒理学
海洋生物学和公共卫生
营养化学营养化学

背景情况:

海鲜是营养的重要来源,但可能含有有毒元素,需要进行风险评估.
了解金属和矿物质的生物可访问性对于准确的健康风险评估至关重要.
热加工可以改变海鲜中元素的含量和生物可用性.

研究的目的:

在热处理之前和之后,量化各种海鲜物种中的矿物质和重金属.
通过模拟消化来确定这些元素的生物可访问性.
通过确定的毒理学参数来评估潜在的消费者健康风险.

主要方法:

在双动物,类动物,头足动物和甲类动物中分析矿物质 (P,S,K,Ca,Se) 和重金属 (Cd,Pb,Ni,Cr,Fe,Zn,Co,Mn,As) 含量.
在体外模拟胃肠道消化,以测量元素的生物可访问性.
估计每日摄入量 (EDI),危险指数 (HI) 和癌症风险 (CR) 的计算用于风险评估.

主要成果:

(Pb) 的生物可访问性在加工后显著增加,在某些物种中达到100%.
大多数金属质的生物可访问性仍然低于100%,表明部分吸收.
(K) 和硫 (S) 的矿物质生物可访问性最高 (高达23%).
观察到Mytilus gigas (Cr,Cu,Zn) 的金属摄入率最高.
对所有分析物种的危险指数和癌症风险值都低于安全值.

结论:

根据危害指数和癌症风险评估,海鲜消费对健康没有重大风险.
热处理对金属的生物可访问性产生影响,而的含量显著增加.
该研究为平衡海鲜的营养益处与潜在的毒理问题提供了一个框架.

关键词:

通过饮食暴露的食物暴露.食品安全食品安全危害健康的风险在体外消化过程中消化.海鲜污染海鲜污染

更多相关视频

Assessing Mineral Availability in Fish Feeds using Complementary Methods Demonstrated with the Example of Zinc in Atlantic Salmon

Assessing Mineral Availability in Fish Feeds using Complementary Methods Demonstrated with the Example of Zinc in Atlantic Salmon

Published on: October 29, 2021

Dose Uptake of Platinum- and Ruthenium-based Compound Exposure in Zebrafish by Inductively Coupled Plasma Mass Spectrometry with Broader Applications

Dose Uptake of Platinum- and Ruthenium-based Compound Exposure in Zebrafish by Inductively Coupled Plasma Mass Spectrometry with Broader Applications

Published on: April 21, 2022

相关概念视频

Toxicity Testing in Animals

Toxicity Testing in Animals

Toxicity tests in animals are grounded on two main assumptions: first, the effects observed in laboratory animals can be extrapolated to humans, especially when adjusted for body surface area; second, high-dose exposure in animals is essential to identify potential human hazards from lower doses. This is based on the quantal dose-response concept, which faces the challenge of extrapolating results from relatively few test animals to much larger human populations. For example, a 0.01% incidence...

Microbial Bioremediation of Uranium

Microbial Bioremediation of Uranium

Microorganisms play a critical role in the transformation and immobilization of uranium in contaminated environments through four main pathways: bioreduction, biosorption, bioaccumulation, and biomineralization. These mechanisms reduce uranium’s toxicity and prevent its migration through groundwater systems, offering sustainable approaches for in situ bioremediation.Bioreduction of UraniumBioreduction is driven by anaerobic bacteria such as certain strains of Geobacter and Shewanella, which use...

Microbial Leaching

Microbial Leaching

Microbial leaching, also known as bioleaching, is an environmentally favorable method for extracting metals from low-grade ores using specific microorganisms. This biotechnological approach is particularly valuable for mining operations targeting copper, gold, and uranium, where traditional extraction methods may be economically or environmentally impractical.Copper Leaching and Microbial CatalysisIn copper bioleaching, crushed ore is arranged into heaps and irrigated with a dilute sulfuric...