Phenylalanine Deaminase test showing positive and negative

Phenylalanine Deaminase

Phenylalanine Deaminase Test Introduction The Phenylalanine Deaminase (PDA) Test is an important biochemical test in microbiology used to detect the ability of bacteria to produce the enzyme phenylalanine deaminase. This enzyme removes the amino group

Lysine Decarboxylase test showing broth medium and color change reaction for bacterial identification.

Lysine Decarboxylase Test

Lysine Decarboxylase Test Introduction The Lysine Decarboxylase Test is an important biochemical test in microbiology used to detect the presence of the enzyme lysine decarboxylase, which catalyzes the decarboxylation of the amino acid lysine to

Gelatin hydrolysis test showing positive and negative results in test tubes. Title Text: Gelatin Hydrolysis Test

Gelatin Hydrolysis Test

Introduction The Gelatin Hydrolysis Test (also called the Gelatin Liquefaction Test) is a biochemical test used in microbiology to detect the ability of bacteria to produce the enzyme gelatinase. Gelatinase hydrolyzes gelatin, a protein derived

Flowchart of Nitrate Reduction Test showing positive and negative results with color changes in test tubes.

NRT

Introduction The Nitrate Reduction Test is an important biochemical test in microbiology that determines the ability of bacteria to reduce nitrate (NO₃⁻) to nitrite (NO₂⁻) or other nitrogenous compounds (e.g., ammonia, nitrogen gas). This test

TSI

Introduction The Triple Sugar Iron (TSI) Test is a widely used biochemical test in microbiology for the identification of Enterobacteriaceae and other Gram-negative bacilli.It helps in determining a bacterium’s ability to: Ferment glucose, lactose, and

Citrate Utilization Test showing positive (blue) and negative (green) results in test tubes

Citrate Utilization Test

Introduction The Citrate Test and Voges–Proskauer (VP) Test are part of the IMViC test series (Indole, Methyl Red, Voges-Proskauer, Citrate). The Citrate Test detects the ability of bacteria to use citrate as the sole carbon

Positive and negative Methyl Red Test showing yellow negative result and red positive result in test tubes.

Methyl Red Test

Introduction The Methyl Red (MR) Test is an important biochemical test in microbiology that detects the ability of bacteria to perform mixed acid fermentation of glucose, producing stable acidic end-products.It is one of the IMViC

Coagulase test showing positive and negative results in test tubes for bacterial identification

Coagulase Test

Introduction The Coagulase Test is an important biochemical test in microbiology used to detect the enzyme coagulase, produced mainly by Staphylococcus aureus.This enzyme converts fibrinogen into fibrin, leading to clot formation.The test is crucial in

Normal Delivery and Caesarean

Introduction The safety of the mother and baby during childbirth holds the highest priority. Doctors now use two main delivery methods – Normal Delivery and C-Section (Caesarean Section). Many mothers struggle to decide which method

Oxidase Test

Introduction The Oxidase Test is an important biochemical test in microbiology used to determine the presence of the enzyme cytochrome c oxidase in bacteria.This enzyme plays a role in the electron transport chain, transferring electrons