There are many factories or packing houses where the byproducts are prepared for market.
The older processes for the commercial preparation of this salt, which were based on the ignition of nitrogenous substances with an alkaline carbonate and carbon, have almost all been abandoned, since it is more profitable to prepare the salt from the byproducts obtained in the manufacture of illuminating gas.
Both compounds are often derived from shellfish and animal byproducts.
However, chlorine can produce chemical byproducts that have been linked to cancer.
An " Innovation station " section provides stories, market trends and innovations in foods containing dairy byproducts.