How to Perform the Catalase Test - Staphylococcus vs Streptococcus
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- Опубликовано: 30 июл 2024
- Catalase tests can be used to determine if a gram-positive cocci is staphylococcus or streptococcus bacteria. To learn more about Hardy Diagnostics visit our new website. bit.ly/3Jfoj9j
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00:00 History of catalase test
00:53 What you will need
01:08 Start of catalase test
01:15 Applying the organism
01:40 Tips
01:48 Adding 3% hydrogen peroxide
01:57 Reaction/Results
02:25 Closing info
Filmed and Edited by Brian Tom
Catalase # Staphylococcus # Streptococcus - Наука
I had a lab practice exam yesterday and this guide helped me a lot. The lab teacher had taught us to put a drop of water on the slide and then touch it with a loop containing the cell sample in its tip. The results were dubious at first, but then I remembered this method and we managed to get a very clear Catalase + result.
Thank you 1 million times. Keep up the good work.
We're so glad our videos helped! One of our goals is to help the next generation of microbiologists, and we're thrilled to have you as a part of that group! 😊
شكراً لقد استفدت كثيراً ❤
Never seen a high-quality video explaining this test as you guys
Thank you so much
You are welcome! I am glad it was useful, we do our very best to be thorough.
This is great ✊ it is actually helping me. as a student for Microbiology.
Thank you so much, much love and appreciated to serving scientific medical Laboratory field ❤️❤️👏🏻
You are super welcome IBRA. We enjoy making these laboratory tutorials for the community. Never stop learning.
Great video, Thank You!!
Glad you liked it!
Thanks simple and precise
Glad it helped
So outstanding! Thanks
Glad you enjoyed it!
Thank you 😊
You're welcome !
Thanks!!!
You bet!
Thank you 🙏
You’re welcome!
Excellent.
Please, can you elaborate why the culture has to be 18 to 24 hours old?
Aerobic organisms must be taken from an 18 to 24 hour old culture. Organisms lose their catalase activity with age. For slower growing anaerobic organisms, an older (24-72 hours) culture may be acceptable.
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