"heterocy" - 1 õppematerjal

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N-nitrosamines can be generated under techniques used for their control are briefly certain processing conditions when using described in this chapter. nitrite as a preservative. The polycyclic aro- matic hydrocarbons (PAH), which are gener- N-nitrosamines ated in certain smoking processes, can also be produced when cooking at high tempera- Nitrosamines are N-nitroso compounds that tures. This is also the case with the heterocy- have received much attention in the last 50 clic amines, which are generated when years due to their recognition as potential cooking at high temperatures. In fact, diets carcinogenic compounds. Nitrosamines are associated with meats cooked at high tem- formed in cured meats through the reaction peratures may increase the risk of certain of nitrous acid in its dissociated form, types of cancer (Jakszyn et al. 2004)