منابع مشابه
N-nitrosamines in processed meat products
A sensitive, selective and generic method has been developed for the simultaneous determination of the contents ( g kg−1 range) of both volatile nitrosamines (VNA) and non-volatile nitrosamines (NVNA) in processed meat products. The extraction procedure only requires basic laboratory equipment and a small volume of organic solvent. Separation and quantification were performed by the developed L...
متن کاملDistribution of Seven N-Nitrosamines in Food
N-nitrosamines, which are classified as carcinogens by IARC and US EPA, can be easily found in various foods. They are reaction products between nitrogen oxide and secondary amines, but can also be generated during fermentation. Ever since the 1960s, when nitrite, used as a preservative in processed meats, was suspected to generate N-nitrosamines, the usage of the food additive has been debated...
متن کاملFormation and Metabolism of N-Nitrosamines
The formation of nitrosamines and reactions of the first and second phase of their biotransformations were reviewed.
متن کاملDegradation of N-nitrosamines by intestinal bacteria.
A major proportion of bacterial types, common in the gastrointestinal tract of many animals and man, were active in degrading diphenylnitrosamine and dimethylnitrosamine, the former being degraded more rapidly than the latter. At low nitrosamine concentrations (is less than 0.05 micronmol/ml), approximately 55% of added diphenylnitrosamine, 30% of N-nitrosopyrrolidine, and 4% of dimethylnitrosa...
متن کاملHierarchical Composites to Reduce N-Nitrosamines in Cigarette Smoke
In order to reduce the harmful constituents in cigarette smoke, two hierarchical composites were synthesized. Based on, zeolites HZSM-5 or NaY fragments were introduced into the synthetic system of mesoporous silica SBA-15 or MCM-41 and assembled with the mesoporous materials. These porous composites combine the advantages of micro- and mesoporous materials, and exhibit higher effects than acti...
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ژورنال
عنوان ژورنال: Kvasny Prumysl
سال: 2016
ISSN: 0023-5830
DOI: 10.18832/kp2016001