Nutrient medium No. 199 M (sterile) is a universal nutrient medium that allows the cultivation of a wide range of microorganisms such as streptococci, staphylococci and other gram-positive bacteria.
The medium consists of a wide range of nutrients that are necessary for the growth and development of microorganisms. A nutrient medium is a liquid substance that includes a mixture of proteins, carbohydrates, minerals and vitamins necessary for the growth of microorganisms. Unlike conventional culture media, 199 does not contain any contaminants or bacteria, making it ideal for growing sensitive biological agents.