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- W4243275532 abstract "N-Nitroso compounds, once formed and present in vivo, generally do not easily or readily revert back to precursors. Instead, many of them are metabolized to, or are converted to alkylating agents as terminal or proximate carcinogens. One effective method of controlling the formation of these compounds in foods and in vivo has been to use agents that inhibit their formation from precursors (e.g., amines, amides, plus nitrosating agents). The formation of N-nitroso compounds is directly dependent on the source of nitrosating agent which recent surveys indicate are numerous, ranging from atmospheric exposure to oxides of nitrogen through bacterial reduction of nitrate in the gastrointestinal tract. The generally accepted mechanism of blocking these reactions is one of competitive kinetics between the susceptible amine (amide) and potential blocking agent for the nitrosating specie. The ultimate effectiveness of any given blocking agent then depends on being able to deliver it in sufficient concentration to the site where nitrosation takes place. α-Tocopherol and its water soluble antioxidant counterpart, ascorbic acid, have been found to be extremely efficient inhibitors of nitrosation reactions in food products as well as in vivo in man. The mechanisms which apply to these systems will be presented along with the results of many recently reported investigations." @default.
- W4243275532 created "2022-05-12" @default.
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- W4243275532 date "1992-10-01" @default.
- W4243275532 modified "2023-10-17" @default.
- W4243275532 title "Tocopherol" @default.
- W4243275532 doi "https://doi.org/10.1021/bk-1992-0507.ch028" @default.
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