Complete Food

26 May 2011

Complete Food
What is the complete chemical process that takes place during food irradiation?

i need to know the COMPLETE chemical process that takes place during food irradiation! I can’t find it anywhere :(

The food irradiation process is not a chemical process in the normal sense. The foods are not changed in nutritional value and they are not made dangerous as a result of the irradiation. The high energy ray is absorbed as it passes through food, and gives up its energy. The food is slightly warmed. Some treated foods may taste slightly different, just as pasteurized milk tastes slightly different from unpasteurized milk. If the food still has living cells, (such as seeds, or shellfish, or potatoes) they will be damaged or killed just as microbes are. This can be a useful effect. For example, it can be used to prolong the shelf life of potatoes by keeping them from sprouting. The energy can induce a few other changes. At levels approved for use on foods, levels of the vitamin thiamine are slightly reduced. This reduction is not enough to result in vitamin deficiency. There are no other significant changes in the amino acid, fatty acid, or vitamin content of food. In fact, the changes induced by irradiation are so minimal that it is not easy to determine whether or not a food has been irradiated. In general, the irradiation process produces very little chemical change in food. None of the changes known to occur have been found to be harmful or dangerous.
Some of the changes produce “radiolytic” products. These are familiar products, such as glucose, formic acid, acetaldehyde, and carbon dioxide, that are naturally present in foods or are formed by heat processing. Their safety has been examined very critically and no evidence of harm has been found.

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