Lab Protocol

Catalase test

Catalase Test- Principle, Procedure and Result

Catalase and Oxidase tests are performed to check whether the given microorganism is aerobic or anaerobic. Catalase Test – The catalase enzyme protects the cell from oxidative damage caused by reactive oxygen species. The reactive oxygen species (ROS) are produced during the metabolism of carbohydrates. The NADH, produced during metabolic reactions are oxidized to NAD […]

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Effect of Temperature on microbial growth

Study the Effect of Temperature on Microbial Growth

Introduction – Bacterial Growth is affected by nutritional and physical factors. The nutrients means the organic and inorganic material whereas the physical factors means pH, temperature, aerobic/anaerobic conditions. The bacteria need the nutrition and optimum physical environment to conduct its molecular, physiological activity and to multiply.   The bacteria needs a physical environment for carrying out

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Calculation

Concentration & Dilution concept used in Laboratory

Introduction- While working in lab, we need to prepare different solutions of different concentration. Dilution is defined as the process of decreasing the concentration of solute in solution by adding more solvent. While diluting the solution, the solute concentration remains the same and volume of solution is increased hence decreasing the concentration. Where as, the

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Difference between acid fast and non acid fast bacteria

Acid Fast Staining – Principle, Procedure & Applications

Introduction to Acid Fast Staining- In 1882, Paul Ehrlich developed the Acid Fast Staining technique. Later, Ziehl and Neelson developed it in 1883 and hence the technique is also called as “Ziehl-Neelsen Staining Technique”. The main aim of this technique was to distinguish bacteria between acid fast groups and non-acid fast groups. Acid-fast organisms are

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Sabouraoud Dextrose

Sabouraoud Dextrose Agar (SDA) Media for Fungi

Sabouraoud Dextrose media contains all essential nutrients required for the growth of fungi. Introduction– Fungi are eukaryotic organism and found to be from unicellular to multicellular. The example of unicellular fungi is yeast and mushroom is multicellular. They can be pathogenic or non pathogenic. They are also found to be associated with plants symbiotically and

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Meme

Working Principle and Construction of Hot Air Oven

Hot Air Oven is used for sterilization in the laboratory. Introduction: Hot Ar Oven is an instrument used for sterilization. It is the process or a method used to kill the microorganisms. The sterilization methods allows us to conduct contamination free experiments. When heat, radiation or such physical agents are used for sterilization, it is

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