There are many reasons for tracing a food product's components back to their source. The most important, of course, is to find the source of a food safety problem and to locate and retrieve all of the affected product as quickly as possible.

Many organizations have been actively developing traceability guidelines, initially to trace diseased animals back to their source, as in the cases of bovine spongiform encephalopathy, and a number of countries have required and implemented traceability progr…

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