Catalase Test

In this video, Biology Professor (Twitter: @DrWhitneyHolden) will cover the Catalase test procedure and discuss the background information to understand how this test works. Specifically, this diagnostic test indicates the presence of catalase in a bacterial culture. Catalase is an enzyme that catalyses the production of water and oxygen gas from hydrogen peroxide. It is used to differentiate catalase-positive bacteria, like staphylococci, from catalase-negative bacteria like streptococci.

[@anabellelovesyou1869]

finally time to write my comment literally i have been waiting through the whole video tell you how helpful you were n yeah loved the way you taught n those last three points were really cool you just got a new subscriber miss :)

[@letaureauduforex6876]

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[@amjadmohammed8023]

Tomorrow I have an exam, I thank you from the heart, may God protect you

[@stephanierios3385]

Shes the best Professor on KZbin

[@BiologyProfessor]

Wow, thanks! 🥰🥰🥰

[@eduardoantoniovillapallare3881]

Thank you so much, one of the greatest videos I have seen on the topic. Finally I get the information I wanted to have. Excellent!

[@BiologyProfessor]

😀😀

[@bapanapallilokesh]

Straight to the point 👌 Love this video ❤❤

[@the_octobergirl3551]

You save my life Never ever before these things seemed this easy to me ❤️

[@sallyrahma608]

Thank You

[@the_octobergirl3551]

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[@Scampers224]

Thanks this was really helpful!! I'm surprised you're not more popular but I'll be sharing with some of my fellow med students!

[@BiologyProfessor]

Thanks!

[@BiologyProfessor]

And if you can’t find a video on a certain topic, let me know and I can add it to my list for future videos.

[@ranimimi6487]

Thank you so much

[@fidorover2]

Just wondering: as you stated, Catalase catalyses the production of water and oxygen gas from hydrogen peroxide. And since researchers have recently discovered that the main reason hair turns gray is hydrogen peroxide's "bleaching" effect on the follicle, some have theorized that taking a Catalase supplement might reduce enough hydrogen peroxide to stop its effect of causing hair to gray. Any thoughts on this, or experiments you've done (or know of) regarding this? I mainly wonder if an oral Catalase supplement can even make it into the bloodstream. Many thanks. My wife and I love your channel!

[@BiologyProfessor]

I have also heard of the possibility of catalase being used in this way, but I don't know of any experiments to assess it. My hair is still nice and brown (I've actually never died it or even had highlights put in), but it would be cool to have an answer before I get old enough to go gray. ;) Thanks for watching!

[@anabellelovesyou1869]

@@BiologyProfessor you are funny :)

[@gufranpagnaaabdul-rauf4226]

That was very helpful. Thank you

[@shahirchy]

and your video is well structured with really good information :)

[@zamrants4319]

Good video, well summarized. I like it, cheers.

[@winkella]

This is so helpful, thank you!!

[@allisonwatson5972]

Thank you for such a great video!

[@mafia6330]

You're amazing! Great content.

[@victorpeaq2018]

Vielen Dank für die klare Erklärung.

[@BiologyProfessor]

Du bist herzlich Willkommen

[@BiologyProfessor]

Du bist herzlich Willkommen

[@eja9403]

very clear explanation..love it, thank u ^_^

[@nawalbuz9096]

Salamu Alaikum ... thank you so much for a very clear explanation ..good job

[@khanwilsontegha4286]

Thanks a lot for your lectures. All are wonderful. Please can you do videos on voges proskeur, motility bacteria test and XLD agar? Please!!!

[@BiologyProfessor]

I’ve added to my list. Thanks!

[@BiologyProfessor]

Better late than never… here’s my new video about XLD agar: kzbin.info/www/bejne/qIXIY2t7npiid68

[@briandavitmusic9421]

Brava! Many thanks

[@shahabfarooqi59]

I like you and your lectures.

[@shahanasageer1706]

Well explained!!! Thank u for ua vdeo

[@affy537]

thank you maam..

[@damankaur105]

Well explained

[@user-jx7dr5yc9l]

Thanks🌹

[@galaxychennai7884]

So sweet you are💐. I like the way you presenting

[@fortuna7301]

So can it be successful against gray hairs ? Great explanation by the way !

[@saadahyounis]

Many thanks

[@zachg1840]

Are you able to leave an equipment list?

[@renzjugadora8807]

How can I determine if the bubbles is produced by catalase in bacteria or catalase in red blood cells?

[@BiologyProfessor]

You should first grow the bacteria on media without red blood cells.

[@recombinantdna6861]

I want to raise microbes with you! 😹

[@skinkarekellie2549]

When she pulls the top off the marker and moves her hair out of the way, that's when I know its game time!

[@BiologyProfessor]

Hahaha, that’s right! :)

[@spiderm83]

What is the recommended catalase dosage?

[@BiologyProfessor]

In this test, the catalase is made by the bacteria cells. If you are asking about consuming a supplement, I cannot recommend a dosage.

[@spiderm83]

@@BiologyProfessor Thanks for this informative video, Is consuming Catalase in general considered safe?

[@ebenburger111]

Hey!!!!!

[@mckenna8663]

You know, as a student you come up with crazy things to help you remember answers for the test. For catalase results: we simply said that a positive CAT-alase looks like cat-spit. Gross, sure. But it stuck.

[@BiologyProfessor]

LOL - love it!

[@quallstorain1192]

You can do bettter

[@anabellelovesyou1869]

oo i didnt get you i wish you could help me

[@trojanhell7639]

Love how she says COK THIS GIRL IS BEAUTY

[@shahirchy]

MASHA ALLAHHH !! you got beautiful eyes :)

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Oh teacher How did you loose so much weight

[@BiologyProfessor]

Ketogenic diet plus fasting

[@philipkuriakose1368]

@@BiologyProfessor great you look great then and now 👍👍

[@celinelyne2483]

I din't find this helpful

[@AdnanAli-bt8zv]

Will tell even my kids not to take medical school classes

[@user-po6bk5jw1x]

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