‏📌 Catalase test 🧫 is a biochemical test used to detect the presence of the catalase enzyme in bacteria. This enzyme breaks down hydrogen peroxide (H₂O₂) into water (H₂O) and oxygen (O₂), producing bubbles. 📍Procedure: 1. Place a drop of 3% hydrogen peroxide on a glass slide. 2. Add a bacterial colony using a sterile loop. 📍3. Observe the reaction: Positive ( ): Bubble formation, indicating the presence of catalase. Negative (-): No bubbles, indicating the absence of the enzymes 📍Significan
‏📌 Catalase test 🧫 is a biochemical test used to detect the presence of th…
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Microbiology - 008 - Catalase Test
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Catalase test 🧪 ✔️The catalase test is a quick and easy method for differentiation of Streptococcus and Staphylococcus. ✔️All Streptococcus species are catalase negative and Staphylococcus are catalase positive (bubble production). ✔️The medium used must NOT have blood incorporated since the erythrocytes have catalase activity and can give false positive results. ✔️The test should be done on young cultures 18-24 hours. ✔️The reagent used is 3% hydrogen peroxide. . . #microbiologist #labtech #me
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