Blood agar contains:
It is an enriched media used for bacterial growth. This media is suitable for the growth of fastidious organisms like streptococci which do not grow otherwise as they demand special nutrients for their growth. This media is also useful in differentiating the bacteria based on their hemolysis property.
Composition of blood agar:
It contains Nutrient agar + 5-10% sheep blood.
This media should have a Ph of 7.4.