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Category: Bacteriology

link to Prebiotics: Mechanisms, Sources, and Examples

Prebiotics: Mechanisms, Sources, and Examples

Glenn Gibson and Marcel Roberfroid first introduced the concept of prebiotics in 1995. They stated that a “Prebiotic is a nondigestible food ingredient that beneficially affects the host by...

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link to Sulfide Indole Motility (SIM) Medium: Principle, Procedure, and Results 

Sulfide Indole Motility (SIM) Medium: Principle, Procedure, and Results 

Sulfide Indole Motility (SIM) medium is a differential bacterial growth medium for detecting three different characteristics of an organism; Sulfur reduction and (H2S) sulfide production Indole...

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link to Gram Positive Cocci of Medical Importance 

Gram Positive Cocci of Medical Importance 

The most common gram-positive cocci of medical importance belong to Staphylococcus, Streptococcus, and Enterococcus genera. etc. Most organisms belonging to these genera are non-motile and do not...

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link to Casein Hydrolysis Test: Principle, Procedure, and Uses

Casein Hydrolysis Test: Principle, Procedure, and Uses

The physiological reactions of microorganisms are crucial in species identification and differentiation. As enzymes catalyze all physiological reactions, detecting the enzyme produced is an essential...

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link to Litmus Milk Test: Principle, Procedure, and Results

Litmus Milk Test: Principle, Procedure, and Results

Litmus milk is an undefined milk-based medium consisting of skim milk and the pH indicator azolitmin (litmus). Azolitmin is pink at pH 4.5 and blue at pH 8.3. Between these extremes, it is purple. In...

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link to Malonate Test: Principle, Procedure, and Results

Malonate Test: Principle, Procedure, and Results

Malonate is an ionized form of malonic acid CH2(COOH)2, and its ester and salts. The medium for the malonate test contains sodium malonate. Malonate is a reversible inhibitor of succinate...

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