Secret ingredients of food - anyone know where I can get info about which products have dodgy (or not v appealing!) stuff that isn't advertised as an ingredient?

[sipper]

Oops....long title...sorry about that!

I'm after a website (or book?) that can tell me about the stuff that goes into or onto food during its production but which isn't advertised as an ingredient.

For instance, regarding the lawsuit that Jamie Oliver is facing over 'pink slime' comments, the news reports say : Lean finely textured beef is made from beef heated and spun in a centrifuge to separate the meat from the fat, before the final product is treated with a puff of ammonium hydroxide gas to kill any bacteria.

Or, another example, the shellac 'wax' coating on lemons is from a resin secreted by the female lac bug.

Bit obscure but wondered if anyone might know.

Thanks!

'Don't eat anything your great grandmother wouldn't have recognised.'

Well I understand the logic behind sentiment, and I completely agree - but I'm rather partial to avocados, fresh basil, mangoes, pasta, chillies etc. Don't really want to return to a diet of apples, pears and beef brisket and root veg!