How to make vegetables tasty. 1  Diet and Nutrition Tips for Women: Eating Right to Look and Feel Your Best at Every Stage of Life. 2  Healthy Food for Kids:Easy Tips to Help Your Children and Teens Eat Healthier. 3  Emotional Eating:How to Recognize and Stop Emotional and Stress Eating.
The catalase test is used to differentiate staphylococci (catalase-positive) from streptococci (catalase-negative). The enzyme, catalase, is produced by bacteria that respire using oxygen, and protects them from the toxic by-products of oxygen metabolism.he catalase test is used to differentiate staphylococci (catalase-positive) from streptococci (catalase-negative). The enzyme, catalase, is produced by bacteria that respire using oxygen, and protects them from the toxic by-products of oxygen metabolism.
Procedure of catalase test. 1  Transfer a small amount of bacterial colony to a surface of clean, dry glass slide using a loop or sterile wooden stick. 2  Place a drop of 3% H 2 O 2 on to the slide and mix. 3  A positive result is the rapid evolution of oxygen (within 5-10 sec.) as evidenced by bubbling. 4  A negative result is no bubbles or only a few 5  ... Dis