Soyabean Casein Digest Agar, 500 g

Soyabean Casein Digest Agar is recommended by various pharmacopoeias as sterility testing medium (1, 2). Trytone Soya Agar w/ Yeast Extract and Hemin is a modification of Soyabean Casein Agar with the additional ingredients tomato juice, yeast extract and hemin. Tomato juice serves as a source of carbon, protein and nutrients. Yeast extract and papaic digest of soyabean meal provides essential nutrients like amino acids and vitamins. Dipotassium phosphate provides buffering action to the medium. Hemin provides essential growth for fastidious microorganisms like Bordetella pertussis (3) and Neisseria meningitidis . Storage and Shelf-life: Store below 30°C in tightly closed container and the prepared medium at 2-8°C. Use before expiry date on the label. References: 1. The United States Pharmacopoeia / National Formulary, 2008, USP31, The United States Pharmacopeial Convention Inc., Rockville, MD. 2. Indian Pharmacopeia, 2007, Govt. of India, Ministry of Health and Family Welfare, New Delhi, India. 3. Quinto G. and Sebald M., (1964), Am. J. Med. Technol. 30:381-384.