Antibiotic Medium No.32 (USP)

This is a medium supporting a wide range of organisms. It conforms to the requirements of the United States Pharmacopeia for antibiotic sensitivity testing of pharmaceutical products. Antibiotic Assay Medium No.32 is a modification of Antibiotic assay medium No.1. (E & O BM4710). This medium is used to develop inoculum of Bacillus subtilis for antibiotic assay used in the test for assaying by the plate assay method.  Nutrients and growth factors are supplied by peptic digest of animal tissue, casein hydrolysate, yeast extract, and beef extract. Glucose is a carbon source.