Peptone Soy Agar Culture Medium
Item Name Code (INC) 27563
![]() |
Additional Information for Peptone Soy Agar Culture Medium
Peptone Soy Agar (PSA) is a culture medium used in microbiology laboratories for the cultivation and isolation of a wide range of microorganisms. It falls under the supply class of In Vitro Diagnostic Substances, Reagents, Test Kits, and Sets in the supply group of Medical, Dental, and Veterinary Equipment and Supplies.
PSA is composed of peptone, soybean meal, sodium chloride, and agar. Peptone provides a source of nitrogen and other essential nutrients for microbial growth, while soybean meal provides additional nutrients and growth factors. Sodium chloride is added to maintain osmotic balance, and agar is used as a solidifying agent to allow the medium to be poured into petri dishes and form a solid surface for microbial growth.
PSA is commonly used for the cultivation and enumeration of bacteria, including those found in food, water, clinical samples, and environmental samples. It supports the growth of a wide range of microorganisms, including both aerobic and anaerobic bacteria.
The medium is typically prepared by dissolving the ingredients in water, adjusting the pH, and sterilizing it by autoclaving. Once cooled, it can be poured into petri dishes and allowed to solidify before inoculating with the desired microorganisms.
PSA is an essential tool in microbiology laboratories for the isolation and identification of bacteria, making it a crucial component of the In Vitro Diagnostic Substances, Reagents, Test Kits, and Sets supply class in the Medical, Dental, and Veterinary Equipment and Supplies supply group.