Last updated on June 2nd, 2021Tween 80 is the trade name of the detergent polyethylene derivative of sorbitan mono-oleate. Some Mycobacterium species possess an enzyme-lipase, that splits the compound and releases oleic acid and polyoxyethylated […]
Last updated on June 6th, 2021Japanese Encephalitis (JE) virus was initially isolated in Japan in 1935. It is a leading cause of vaccine-preventable encephalitis (inflammation of the brain parenchyma) in Asia and the western Pacific. […]
Last updated on June 2nd, 2021A group of researcher published an article in “Nature” reporting the discovery of a new cell wall inhibitor, teixobactin, from a screen of uncultured bacteria grown in diffusion chambers in […]
Last updated on June 11th, 2021O-Nitrophenyl-β-D-galactopyranoside (ONPG) is structurally similar to lactose (i.e. ONPG is an analog of lactose), except that orthonitrophenyl has been substituted for glucose. On hydrolysis, through the action of the enzyme […]
Last updated on June 21st, 2021Transport media are essentially solutions of buffers with carbohydrates, peptones and other nutrients (excluding growth factors) designed to preserve the viability of bacteria during transport without allowing their multiplication. The […]
Last updated on June 23rd, 2021Leucine Aminopeptidase (LAP) test is used to identify catalase-negative gram-positive cocci. Specifically, it differentiates Aerococcus and Leuconostoc from Streptococcus, Enterococcus, Lactococcus, and Pediococcus. The LAP disk is a rapid test […]
Last updated on June 17th, 2021Gram staining method, the most important procedure in Microbiology, was developed by Danish physician Hans Christian Gram in 1884. Gram staining is still the cornerstone of bacterial identification and taxonomic division. […]
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