Nitrate reduction test is used for the differentiation of members of Enterobacteriaceae based on their ability to produce nitrate reductase enzyme that hydrolyzes nitrate (NO3-) to nitrite...
Month: January 2015
Hektoen Enteric (HE) Agar was introduced in 1968 by Sylvia King and William I. Metzger. They formulated HE Agar medium while working at the Hektoen Institute in Chicago, to increase the recovery...
Salmonella is a member of the family Enterobacteriaceae. It is a Gram-negative bacilli, motile and non-lactose fermenter. The genus can be divided into two species (S. enterica and S. bongori), based...
When an isolated colony (18-24 hour growth) of a suspected bacterium is emulsified in sodium deoxycholate or sodium taurocholate (commonly known as bile salt), it lyses the cell wall of the bacterium...
Sickle cell anemia, a disorder that is genetics where hemoglobin is abnormal. Individuals with sickle cell anemia have a mutation in the gene that codes for beta-globin, a component of hemoglobin....
Epsilometer test (E- test ) is an ‘exponential gradient’ method of determination of antimicrobial resistance. The E-test has been developed to provide a direct quantification of...