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Toxic Reactions: Overview01:26

Toxic Reactions: Overview

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When toxic substances penetrate the human body, they disseminate to various tissues, undergoing metabolic changes. This process yields reactive metabolites that may covalently bind with specific target molecules, resulting in toxicity.
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Humans continually engage with an environment rich in potentially harmful chemicals. These are introduced to our bodies through inhalation, ingestion, or skin contact. These chemicals exist in various forms, such as air and environmental pollutants, agricultural chemicals, organic solvents, and heavy metals.
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The Periodic Table and Organismal Elements00:57

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The Periodic Table and Organismal Elements01:27

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Related Experiment Video

Updated: Nov 22, 2025

Removal of Trace Elements by Cupric Oxide Nanoparticles from Uranium In Situ Recovery Bleed Water and Its Effect on Cell Viability
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Toxic Elements in Food: Occurrence, Binding, and Reduction Approaches.

P Hajeb1, J J Sloth2, Sh Shakibazadeh3

  • 1Food Safety Research Centre (FOSREC), Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400, UPM, Serdang, Selangor, Malaysia.

Comprehensive Reviews in Food Science and Food Safety
|January 8, 2021
PubMed
Summary
This summary is machine-generated.

Food processing can reduce toxic heavy metals like mercury and lead, protecting health. This review details methods that bind these elements in food, offering insights into safer food production.

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Area of Science:

  • Food Science
  • Toxicology
  • Environmental Health

Background:

  • Toxic elements (heavy metals) such as mercury, arsenic, cadmium, and lead pose significant health risks, affecting neurological, renal, hepatic, and hematological systems.
  • Food serves as a primary pathway for human exposure to these toxic elements.
  • Existing research presents conflicting findings on the impact of food processing on toxic element levels, with some studies indicating reductions and others showing increases.

Purpose of the Study:

  • To review and synthesize reported methods for reducing toxic element content in food.
  • To emphasize the chemical binding mechanisms involved in reducing organic and inorganic toxic elements in various foodstuffs.
  • To present the molecular groups, ligands, and reaction types involved in metal binding within food products.

Main Methods:

  • Comprehensive literature review of studies on toxic element reduction in food.
  • Analysis of chemical binding mechanisms between food components and toxic elements.
  • Categorization of methods based on targeted elements (e.g., mercury, arsenic, cadmium, lead) and food types.
  • Examination of organic and inorganic forms of toxic elements and their interactions.

Main Results:

  • Food processing methods vary in their effectiveness, with some significantly reducing toxic element concentrations.
  • Chemical binding, involving specific molecular groups and ligands in food, is a key mechanism for sequestering toxic elements.
  • Understanding these binding reactions allows for the development of targeted strategies to minimize metal contamination in food products.
  • Both organic and inorganic forms of toxic elements can be bound and reduced through various processing techniques.

Conclusions:

  • Specific food processing techniques and chemical agents can effectively reduce toxic element levels in foodstuffs.
  • The chemical binding of toxic elements by food components is a critical factor in mitigation strategies.
  • Further research into optimizing these binding processes can enhance food safety and public health outcomes.