Pyruvate Broth Test

Pyruvate Broth Test

Pyruvate Broth Test Objectives To determine the ability of an organism to utilize pyruvate. It aids in the differentiation between Enterococcus faecalis and Enterococcus faecium. Principle In the identification of microorganisms, the widely used method is the ability of bacteria to form organic compounds by metabolizing certain carbohydrates and related compounds. Pyruvate broth is a carbohydrate-free, … Read more Pyruvate Broth Test

Salt Tolerance Test

Salt Tolerance Test

Salt Tolerance Test Objectives To determine the ability of an organism to grow in high concentrations of salt. It is used for the differentiation of Enterococci from Non-Enterococci. Principle Salt acts as a selective agent and interferes with membrane permeability and osmotic equilibrium. The salt tolerance medium is a selective and differential medium in which … Read more Salt Tolerance Test

Biochemical Test of Enterococcus faecium

Biochemical Test of Enterococcus faecium

Biochemical Test of Enterococcus faecium Some of the characteristics are as follows: Basic Characteristics Properties (Enterococcus faecium) 40% Bile Salts Positive (+ve) Capsule Negative (-ve) Catalase Negative (-ve) Citrate Negative (-ve) Gelatin Hydrolysis Negative (-ve) Gram Staining Gram-positive H2S Negative (-ve) Hemolysis Variable 0.1% Methylene blue milk Positive (+ve) Motility Negative (-ve) 6.5% NaCl Positive … Read more Biochemical Test of Enterococcus faecium

Biochemical Test of Enterococcus faecalis

Biochemical Test of Enterococcus faecalis

Biochemical Test of Enterococcus faecalis Basic Characteristics Properties (Enterococcus faecalis ) Bile Resistance Resistance to 40% (v/v) bile Capsule Negative (-ve) Catalase Negative (-ve) Citrate Negative (-ve) Flagella Negative (-ve) Gelatin Hydrolysis Variable Gram Staining Gram-positive H2S Negative (-ve) Hemolysis Negative (-ve) Indole Negative (-ve) Motility Negative (-ve) 6.5% NaCl Positive (+ve) OF (Oxidative-Fermentative) Fermentative … Read more Biochemical Test of Enterococcus faecalis