Catalase & Oxidase Tests - Rapid Bacterial ldentification

-
In microbiology, simple biochemical tests can instantly separate major groups of bacteria:

Catalase Test
Principle: Detects the enzyme catalase, which breaks down hydrogen peroxide (H202 -> H20 + 02).
Positive result: Bubbling (oxygen release).
Example: Staphylococcus spp. (positive) vs Streptococcus spp. X (negative) 

Oxidase Test
Principle: Detects cytochrome c oxidase enzyme in the bacterial electron transport chain.
Positive result: Purple/blue color within seconds.
Example: Pseudomonas, Neisseria (positive) vs 
Enterobacteriaceae X (negative).

Why it matters?
These tests are:
. Rapid (results in seconds to minutes)
• Useful for preliminary bacterial differentiation 
Essential in clinical and diagnostic labs for quick decision-making.

A single drop of reagent can guide the path toward correct identification & treatment

Comments

Post a Comment

You Can Also Read

How Nigerian Nurse Can Get Registered As A Registered Nurse In GCC, Qatar in Particular

-
Image
As a Registered Nurse in Nigeria, it is easy and possible for you to work as a Registered Nurse in the Gulf Countries by following the under listed steps. Gulf Countries are the six (6) countries that lies around the Arabian gulf coasts, these are majorly Arabs, which includes Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, and The United Arab Emirates. If you are planning of going to Qatar, take a time to confirm your HIV and Hepatitis B status including your TB status (if any of these is positive, don't bother embarking on the journey to Qatar). Requirements For Nurses In Qatar  For you to qualify to work effectively as a Registered Nurse in Qatar, you need to register with the Department of Healthcare Professions (DHP), Ministry of Public Health (MOPH) and obtain the Qatar Council of Healthcare Practitioners (QCHP) license and you must follow the below guidelines: 1. Update Your PUF 2. Your practicing License must be valid (at least six (6) months validity)...
Read more

Hemophilia

-
Image
Hemophilia is an inherited bleeding disorder in which the blood does not clot properly. This can lead to spontaneous bleeding as well as bleeding following injuries or surgery. Blood contains many proteins called clotting factors that can help to stop bleeding. People with hemophilia have low levels of either factor VIII (8) or factor IX (9). The severity of hemophilia that a person has is determined by the amount of factor in the blood. The lower the amount of the factor, the more likely it is that bleeding will occur which can lead to serious health problems. Causes Hemophilia is caused by a mutation or change, in one of the genes, that provides instructions for making the clotting factor proteins needed to form a blood clot. This change or mutation can prevent the clotting protein from working properly or to be missing altogether. These genes are located on the X chromosome . Males have one X and one Y chromosome ( XY ) and females have two X chromosomes ( XX ). Male...
Read more

Ebola Victim’s Death: FG, Lagos Launch Manhunt for Co-passengers

-
Following the death of an Ebola virus victim from Liberia, Patrick Sawyer, in Lagos, on Thursday, the Federal Government and the Lagos State Government have jointly launched a manhunt for some of the passengers of the airplane that brought the late Liberian into the country, Sunday Newswatch has learnt. The late Sawyer, who was reported to have arrived Nigeria last Sunday aboard a Liberian carrier, Asky Airline, was said to be in company of over 100 co-passengers of different nationalities, among who were about 35 Nigerians. The 40-year-old visiting Liberian died of the deadly virus after being tested positive to the disease at the Lagos University Teaching Hospital (LUTH). According to sources in the Federal Ministry of Health, the Nigerian co-passengers of the late Ebola victim were supposed to be quarantined for thorough investigations, based on an order placed by the Federal Government, but no sooner had the news broken out, than the suspected victims of the deadly virus took to t...
Read more

EFCC Recovers N216m From “Swiss Golden” Fraudsters

-
Image
The Economic and Financial Crimes Commission, EFCC, has recovered a total of N216,402,565.05 from Swiss Golden Investment, an online investment that purportedly deals in buying and selling of Gold Bars. The Economic and Financial Crimes Commission, EFCC, has recovered a total of N216,402,565.05 from Swiss Golden Investment, an online investment that purportedly deals in buying and selling of Gold Bars. The recovery was sequel to a petition the Commission received from thousands of complainants who alleged that they invested in Swiss Golden Investment which was advertised as an online investment that deals with buying and selling of Gold Bars. The petitioner further alleged that after investing over a billion naira into the business, the company refused to pay them any dividend or pay them back their capital. Upon receipt of the petition, the Commission invited the petitioners and they volunteered statements. Through intelligence, the Commission picked up one Maxim Lobaty, a Rus...
Read more

Menace of Fulani herdsmen in Nsukka: Lawyers to the rescue

-
When a situation gets out of hand, different measures could be devised to bring such situation under control. And nothing could be spared and no one overlooked in ensuring that positive solutions are found. Such is the situation in Igbo-Etiti LGA of Enugu State, where Fulani herdsmen and their cattle have allegedly wreaked a lot of havoc in the area, with the herdsmen allegedly committing various crimes ranging from armed robbery, rape to kidnapping. Aku Diewa Lawyers’ Forum (ADLAWF) in Igbo-Etiti L.G.A., Enugu State, has therefore sought legal and peaceful means to bring these nefarious activities to an end. The forum recently raised the alarm over the continued menace of the Fulani cattle rearers in their area and called on the State House of Assembly to enact a bill to check their excesses. The forum made the call when they paid a courtesy call on the Area Commander, Nsukka Zone, Musa Ros-Amson Haladu (ASP), and also revealed that Fulani herdsmen and their cattle have wreak...
Read more

Internet is buzzing over the 800-year-old ‘alien mobile phone’ with cuneiform symbols. But here’s the truth!

-
Image
News concerning an ancient mobile phone, which was supposedly left behind by aliens and excavated in 2015, has electrified the Internet. In the photo, we can see that the atypical phone indeed is marked with ancient cuneiform symbols, and somewhat resembles an old “3310 Nokia” phone. It’s said that archaeologists had found an 800-year-old mobile phone in Fuschl am See in Austria. “What a device like this with Cuneiform writing is doing in Austria is something that no one is able to fully understand or explain,” wrote conspiracy website  To the Death Media . “Regrettably the information about this ‘sensational’ discovery is limited.” ©YouTube Screenshot |  Paranormal Crucible Well, it was these claims and more, such as a statement made by Paranormal Crucible, claiming the phone dates back to the “13th century BCE,” that had conspiracy theorists rather excited. And we know how easily information travels these days. ©YouTube Screenshot |  Paran...
Read more

Lagos Police says having sex in the car will be punished with 2-year imprisonment

-
Image
The Command says the state has laws criminalising sex of any kind in public places. Lagos Commissioner of Police, Edgal Imohimi  (The News Nigeria) The Lagos State Police Command has warned Lagosians that having sex in the car is a crime that's punishable with a 2-year stay in prison. A couple having sex in a car parked in an isolated part of a neighborhood in Lagos State were recently harassed by a mob who posted their pictures on social media. The incident sparked debates over the legality of car sex in the country, leading a Twitter user to ask the Head of the Nigeria Police Force's Public Complaint Rapid Response Unit,  ACP Yomi Shogunle , for clarification. In response, ACP Shogunle   said   having sex in the car is not a crime  unless the car is parked on the premises of a place of worship, or the sex is not between consenting adults or between people of the same sex. Abayomi Shogunle ✔ @YomiShogunle NO. Sex in a car in a public place is n...
Read more