METHOD FOR SEPARING LYSINE FROM AQUEOUS SOLUTION AND ITS APPLICATION FOR ANIMAL BREEDING

摘要

The invention relates to a process for separating lysine in the form of aqueous solutions, according to which: a) the pH of the fermentation broth is adjusted to a value of between 9 and 11; b) the inorganic salts present in the fermentation broth are crystallised by concentration and, where appropriate, by cooling this broth; c) these inorganic salts are removed, bacteria are removed from the culture broth when this removal has not been carried out either prior to or after stage (a), and the aqueous solution containing the lysine consisting of the crystallisation mother liquors is recovered. The aqueous solutions recovered are suitable as animal feed.