◇Antibiotic A-28086(Salinomycin) recovery process United States Patent 4,009,262 Boeck , et al. February 22, 1977 Recovery of an antibiotic selected from the group consisting of antibiotic A-28086 factor A, antibiotic A-28086 factor B, antibiotic A-28086 factor D, and salinomycin by acidifying the fermentation broth in which said antibiotic is produced to about pH 2.0-4.0 and separating the antibiotic with the culture solids.
◇Method for isolating solid matter from a salinomycin culture broth Hohl , et al. July 26, 1983 United States Patent 4,395,491 What are disclosed are a method for recovering solid matter from a salinomycin culture broth by spray drying a low-fat culture broth in the presence of a physiologically acceptable solid agent preventing agglomeration, and a solid product so prepared.