Cultivate a wide variety of bacteria, usually prepared with blood.||These Blood Base media contain highly nutritious extracts or digests of beef. The beef products supply vitamins, carbohydrates, salts and other organic nitrogen compounds. Other peptones provide additional growth factors. Sodium chloride provides essential ions and electrolyte balance.||Microbiological Analysis:|Microorganisms:||Escherichia coli (ATCC 25922): Growth, Beta hemolysis|Staphylococcus aureus (ATCC 25923): Growth, Beta hemolysis|Streptococcus pneumonia (ATCC 6305): Growth, Alpha hemolysis|Streptococcus pyogenes (ATCC 19615): Growth, Beta hemolysis||*Results were obtained from type cultures after incubation at 35°C and observed after 18-24 hours. Media prepared with 5-10% sheep blood.||Appearance:|Beige, homogeneous and free flowing powder||Solubility (w/5% SRBC):|Red and opaque||pH (4%):|7.4 ± 0.2