Enzyme-linked immunosorbent assay (Principle, types and applications)
Enzyme-linked immunosorbent assay, commonly known as ELISA or EIA is one of the most sensitive techniques for detecting antigen or antibody. The reaction between an […]
Laboratory tests
Oxidase test by Kovac’s method (Principle, Procedure, Result Interpretation and Precautions)
Principle: This test is performed to determine or identify the presence of an enzyme cytochrome oxidase (of the electron transport chain) in bacterial cells. The […]
Catalase test (Principle, Procedure, Result interpretation and precautions)
Principle The enzyme catalase, which is produced by many aerobic and facultative anaerobic microorganisms, neutralizes toxic forms of oxygen metabolites like hydrogen peroxide (H2O2) and […]
Biuret test: Principle, Requirements, Procedure and Result Interpretation
Biuret is a compound formed by heating urea at 1800 It is the result of the condensation of 2 molecules of urea. The peptide bonds […]
Germ tube formation test (Principle, Procedure, Result Interpretation and Limitations)
Germ tube is a young hypha (short, non-nucleated and non-septate) growing out of a yeast cell or spore (in spore-releasing fungi) during their germination. They […]