Results 181 to 190 of about 12,056 (230)
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Volatile N-Nitrosamines in Selected Italian Cheeses
Bulletin of Environmental Contamination and Toxicology, 1996Volatile N-nitrosamines are a small part of the larger class of nitroso compounds, which are widespread and often carcinogenic food contaminants. Since Freund’s discovery (1937) of human liver damage due to exposure to N-nitrosodimethylamine and Magee and Barnes’ demonstration of the toxic and carcinogenic action of this nitrosamine in animals (1956 ...
Dellisanti, A, Cerutti, G, Airoldi, L
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1991
Abstract Microbial nitrate reduction is the principal route of N-nitrosamine formation in brewing. However, little consideration has been given to how different groups of microorganisms possessing different mechanisms of nitrate reduction influence N-nitrosamine levels.
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Abstract Microbial nitrate reduction is the principal route of N-nitrosamine formation in brewing. However, little consideration has been given to how different groups of microorganisms possessing different mechanisms of nitrate reduction influence N-nitrosamine levels.
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The reaction of N-nitrosamines with pyridinium salts
Talanta, 1988N-Nitrosamines react readily with pyridinium salts containing an activated methylene group to give hydrazones. This reaction may serve as the basis for the routine determination of N-nitrosamines.
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N-nitrosamines as reagents for the transformation
Tetrahedron, 1983Abstract N-nitrosopiperidine and N-nitroso-N-methylaniline react in acidic solution with thiocarbonyl compounds to give the corresponding carbonyl analogues. Secondary- and tertiary thioamides, xanthione, thio- and dithiobutyrolactone, thiocoumarin, certain thiourea derivatives, dithio-O,O-thiocarbonic, S,S-trithiocarbonic- and N,N disubstituted ...
K.A. Jørgensen +2 more
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Occupational medicine (Philadelphia, Pa.), 2000
Nitrosamines are a large group of chemical compounds that have been found to be carcinogenic in all species of animals tested. They are classified as suspect human carcinogens even though direct causal evidence is lacking. This chapter reviews the nomenclature, chemistry, physical properties, exposure sources, toxicology, epidemiology, analytical ...
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Nitrosamines are a large group of chemical compounds that have been found to be carcinogenic in all species of animals tested. They are classified as suspect human carcinogens even though direct causal evidence is lacking. This chapter reviews the nomenclature, chemistry, physical properties, exposure sources, toxicology, epidemiology, analytical ...
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Sources of N-Nitrosamine Contamination in Foods
1984It has been well established that human foods may contain trace amounts of carcinogenic N-nitrosamines. Originally, it was thought that the use of nitrite as a curing agent for flesh foods was the major source of these trace compounds in the diet. Subsequent research has clearly shown that other processing and packaging procedures can also introduce ...
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IARC scientific publications, 1983
Ring closure of appropriately beta-substituted nitrosamines leads to the formation of dihydrooxadiazolium ions. These relatively stable, crystalline compounds react with nucleophiles, either at the position of the beta-substituent or by displacement of an alkyl group bound to the nitrogen.
C J, Michejda, S R, Koepke
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Ring closure of appropriately beta-substituted nitrosamines leads to the formation of dihydrooxadiazolium ions. These relatively stable, crystalline compounds react with nucleophiles, either at the position of the beta-substituent or by displacement of an alkyl group bound to the nitrogen.
C J, Michejda, S R, Koepke
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The Landscape of Potential Small and Drug Substance Related Nitrosamines in Pharmaceuticals
Journal of Pharmaceutical Sciences, 2023David Ponting +2 more
exaly