Casein Soyabean Digest Agar (Soyabean Casein Digest Agar) (Tryptone Soya Agar)

The medium is a widely used medium, which supports the growth of wide variety of organisms even that of fastidious ones such as Neisseria, Listeria , and Brucella etc. The medium with addition of blood provides perfectly defined haemolysis zones, while preventing the lysis of erythrocytes due to its sodium chloride content. It has been frequently used in the health industry to produce antigens, toxins etc. It's simple and inhibitor-free composition makes it suitable for the detection of antimicrobial agents in the food and other products. It is recommended by various pharmacopoeias as sterility testing medium.