Semisolid Nutrient Agar is recommended for detection of Salmonella species on the basis of motility and hydrogen sulphide (H2S) production. This media is recommended by ISO committee for detection of Salmonella on the basis of motility and hydrogen sulphide (H2S) production. It is a basic culture medium used in water and food studies. It is generally used for maintenance purpose or to check the purity of subcultures.