Human pathogenic bacteria transmitted via the fecal-oral route, i.e., primarily intestinal pathogens, constitute one component of drinkable water quality analysis.
After wastewater treatment, the chemical oxygen demand (COD) is used to determine the amount of contamination in the water. The
What is Presence/Absence Test? The availability of potable water for bathing, drinking, and cooking is essential for modern society. Diseases
The Gram stain is typically the initial step in identifying bacteria and frequently dictates future identification methods. Misclassification may come
Current nitrite reduction tests are based on Peter Griess’s 1858 description of the Griess diazotization reaction. Peter Griess, the son
In 1875, Reoch theorised that microorganisms were responsible for the alkaline fermentation of urine (urea) and the subsequent formation of
The Pyrrolidonyl Arylamidase (PYR) test is a fast test used to identify group A beta-hemolytic streptococci and enterococci. Escherichia coli
The Hippurate Hydrolysis Test measures an organism’s ability to create hippuricase, an enzyme that hydrolyzes the substrate hippurate. It identifies
Triple Sugar Iron Agar is used to identify Enterobacteriaceae based on the fermentation of glucose, lactose, and sucrose and the
What is Hydrogen Sulfide (H2S) Test? This test determines whether sulfur-containing chemicals are converted to sulphides during the microbe’s metabolic
What is Nitrate Reduction Test? Nitrate reduction test is used to differentiate Enterobacteriaceae based on their ability to produce nitrate
API test strip (analytical profile index) is a small, standardised collection of biochemical tests that can be used with complete
Test Name Acetamide utilization Test Purpose Differentiate microorganisms according to their capacity to utilise acetamide as their only carbon source.