What is the purpose of Columbia CNA with 5 sheep blood agar?
Regarding this, what is the role of sheep blood in CNA agar?
Columbia CNA Agar with Sheep Blood contains antibiotics to inhibit S. albus and Micrococcus species as well as Gram-positive and Gram-negative rods. It suppresses growth of Proteus, Klebsiella and Pseudomonas species while permitting unrestricted growth of S. aureus, haemolytic streptococci and enterococci.
Likewise, why is Columbia CNA agar undefined? Corn starch is a polysaccharide and doesn't contain nitrogen. Is Columbia CNA agar defined or undefined medium. It is undefined due to the casein, animal tissue, yeast extract, beef extract, and corn starch in the medium.
Also to know is, what is the purpose of using blood agar plates?
Blood Agar Plates and Hemolysis Protocols. Many species of bacteria produce toxic by-products that are capable of destroying red blood cells. Blood agar is a general purpose enriched medium often used to grow fastidious organisms and to differentiate bacteria based on their hemolytic properties.
What Bacteria grows on CNA agar?
Columbia CNA Agar was designed to suppress the growth of most gram-negative bacteria, including Klebsiella , Proteus , and Pseudomonas species from mixed flora specimens, thus isolating for gram-positive staphylococci and streptococci.