Is this catalase test positive?

Rs Kaarmukhilnilavan @Rs-Kaarmukhilnilavan-2

11 January 2021 1 9K Report

I performed catalase test for a gram negative rod shap bacteria. While adding few drops of hydrogen peroxide few tiny bubbles were formed. However i am not sure weather its a perfect result. Can you anyone please tell me weather this is positive?

Thanks in advance

Pavel Dobeš

Hi Kaarmukhilnilavan, the production of gas oxygen means that catalase is present and test is positive. The bubbles you see in the picture should mean positivity.

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