Fecal Calprotectin Test

Calprotectin Test A calprotectin test is a procedure used to detect the presence of calprotectin in the stool. The procedure is also called stool calprotectin or fecal calprotectin test. What is calprotectin? It is a type of protein released by neutrophil; a particular type of white blood cell. If there is an inflammation in the […]

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Nitrate Reduction Test

What is a Nitrate Reduction Test? It is a procedure that differentiates the members of Enterobacteriaceae based on the ability to produce nitrate reductase enzyme which in turn hydrolyze nitrate to nitrite and will be eventually degraded to different nitrogen products such as nitrous oxide, nitrogen oxide, and ammonia. Other uses of nitrate reduction test […]

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Streak Plate Method – Explained

What is Streak Plate Method ? Streaking is a method that isolates a pure strain from a species of bacteria. A sample is taken from a colony and a microbiological culture is grown on the new plate in order for the organism to be identified properly. It was Loeffler and Gaffky who first developed this […]

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Citrate Utilization Test

What is Citrate Utilization Test ? A citrate utilization test is a part of the IMViC Test, which stands for Indole, Methyl-Red, Vogues-Proskauer, and Citrate; a procedure that differentiates Gram negative bacilli in Enterobacteriaceae family. (1)   Picture 1: The image shows the result of citrate utilization test. The sample that tests negative still has […]

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Voges Proskauer Test

What is a Voges Proskauer Test? It is a procedure that helps determine the microorganism’s ability to produce acetylmethyl carbinol, which is a neutral reacting end product. It was actually a double eponym, which is named after the two microbiologist Voges and Proskauer. In 1898, these two microbiologists observed the production of red color after […]

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