Gram negative cell wall

GRAM STAINING TECHNIQUE

Gram staining is a general purpose bacteriological identification technique used in the bacteriology section of the microbiology laboratory to identify and differentiate bacteria into two groups i.e. Gram-positive and Gram-negative. It was discovered by Christian Gram (1853-1938), a Danish scientist in 1884. Christian Gram showed that the cells of some bacteria could be easily decolorized […]

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Microbe Lab, Bacteriology, Techniques in Microbiology Lab, , , , , , , , , ,

PYROGEN TEST

A pyrogen is simply defined as a fever-causing (inducing) agent that includes toxins of microorganisms. The phrase “pyrogens” is derived from the Greek word “Pyros” to mean “Fire”. Pyrogens are the lipopolysaccharide (LPS) component or endotoxins of bacteria especially Gram negative organisms. They also include the cell wall components of both Gram negative and Gram

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Food Microbiology, Pharmaceutical Microbiology, , , , , , , , , , , ,