Knowra Nitrosamine Nitrosamine A nitrosamine is an organic compound with a nitroso group bonded to nitrogen, generally represented as R₂N–N=O. Some nitrosamines form during food processing or in the body, and several are potent carcinogens.
Nitrosation : A chemical reaction that introduces a nitroso group into a molecule. Nitrosation of amines is a principal route by which nitrosamines form.
N-Nitrosodimethylamine : A small nitrosamine found in some foods, water, and contaminated products; it is carcinogenic in animals. NDMA is a well-studied example used to examine nitrosamine exposure and toxicity.
Nitrosamide : An N-nitroso compound in which the nitrosated nitrogen belongs to an amide or related nitrogen-acyl group. Nitrosamides are related N-nitroso compounds, but their nitrogen is attached to an acyl group.
Carcinogen : An agent capable of causing cancer by increasing its incidence or promoting its development. Several nitrosamines are carcinogens, though potency and evidence differ among compounds.
Nitrite : The nitrite ion, NO₂⁻, found in salts and produced in biological systems. In acidic conditions, nitrite can generate nitrosating species that react with amines.
N-Nitrosodiethylamine : A nitrosamine used in toxicology research and classified as carcinogenic to humans by IARC. It provides a second prominent example of the class's carcinogenic potential.
Nitrosamine oxide : An oxidized nitrosamine derivative with an oxygen atom added to the amine nitrogen. Oxidation changes a nitrosamine's structure and can alter its chemical behavior.
IARC Group 1 : The International Agency for Research on Cancer category for agents carcinogenic to humans. IARC classifies several nitrosamines, including NDMA, as carcinogenic to humans.
N-nitrosation : Nitrosation that attaches a nitroso group to a nitrogen atom. This specific reaction creates the defining N–N=O arrangement in nitrosamines.
Cured meat : Meat preserved or flavored using methods such as curing, smoking, or drying. Nitrosamines can form in some cured meats, especially during high-temperature cooking.
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