The quality evaluation and adulteration identification of the choline chloride

Choline(VB4),as an essential water-soluble vitamin for animal's growth,plays important roles in animal's body.And additive of choline chloride in the diary of animals is the most direct and economic way to the choline supplement.And choline also becomes the maximum water-soluble vitamin in the feed,which is a indispensable additive.With the increasing demand,the adulteration in choline is more and more serious.So,this paper provides an overview in quality evaluation and identification methods of adulteration of the choline chloride,so as to offer help in acceptation and usage of choline chloride.