Blood Agar- Composition, Principle, Preparation, Uses and Hemolysis

Blood Agar- Composition, Principle, Preparation and Uses

What is Blood Agar? Blood Agar is an enriched medium provided with multiple nutrients that generally comes as a basal media for the preparation of blood agar by supplementation with blood. Blood Agar comes as a basal medium that can be used as it is as a general growth medium. The basal medium can be either Columbia Agar or Tryptic …

Read moreBlood Agar- Composition, Principle, Preparation, Uses and Hemolysis

Columbia Agar with 5% Sheep Blood

Columbia Agar with 5% Sheep Blood

Columbia Agar with 5% Sheep blood is highly nutritious general purpose medium for the isolation and cultivation of the non-fastidious and fastidious microorganisms from various clinical specimens and non-clinical specimens of public health importance.  Columbia Blood Agar was first described in 1966 by Ellner et al who incorporated animal derived peptone, enzymatic digests of casein, and enriched medium by addition …

Read moreColumbia Agar with 5% Sheep Blood

Staphylococcus aureus on Columbia CNA Agar with 5% Sheep Blood

Staphylococcus aureus on Columbia CNA Agar with 5% Sheep Blood

– Staphylococcus aureus on Columbia CNA Agar with 5% Sheep Blood. – Photo By: Marlon Neris from Brasília, Brazil. – Columbia CNA Agar is recommended for use as a selective growth medium for the isolation and differentiation of gram-positive cocci from clinical and non-clinical specimens which contain mixed flora. – Large White to Cream Colonies – May be beta-hemolytic