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Introduction of Butyrate Disk Test Butyrate disk test is useful to differentiate Moraxella catarrhalis from Neisseria species like Neisseria gonorrhoeae, Neisseria lactamica. Principle of Butyrate Disk Test The butyrate disk test is a rapid test for the detection of the enzyme butyrate esterase. Bromochloro-indolyl butyrate (IB) is the substrate. Hydrolysis …
Introduction of Culture Media Culture media are required to grow the organisms and they are generally from clinical specimens to identify the causative agent. Common Ingredients of Culture Media Common Ingredients of Culture Media and their basic constituents are as follows- Water: It is the …
Introduction of Blood Agar Blood agar is an enriched medium for the cultivation of bacteria. Fastidious organisms, such as streptococci, do not grow well on ordinary growth media. It is a type of growth medium i.e. trypticase soy agar enriched with 5% sheep blood or blood agar base with 5-10 % sterile …
Introduction of Gram Stain Gram stain is the most commonly used routine stain in microbiology for the identification of microbes and also to know the evidence of etiological agents in clinical specimens. Gram staining is a differential stain and thus it applies to differentiate Gram-positive …