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...
Category: Bacteriology
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...
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...
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...
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...
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...