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Tag: Factors Affecting Microbial Growth

link to Nutritional Types of Bacteria

Nutritional Types of Bacteria

All organisms require an energy source to drive energy-consuming life processes. Energy can be tapped from light or chemicals (organic chemicals and inorganic chemicals). The nutritional types of...

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link to pH Requirements of Microorganism

pH Requirements of Microorganism

pH scale is used to express the acidity or alkalinity of a solution on which neutrality is pH 7. The pH scale extends from pH 0.0 to pH 14.0, and each pH unit represents a tenfold change in hydrogen...

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link to Psychrophiles, Mesophiles, Thermophiles

Psychrophiles, Mesophiles, Thermophiles

Microbes are loosely classified into several groups based on their preferred temperature ranges.  Every organism has a range of permissive growth temperatures. Unlike pH or osmolarity, microbes...

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link to Bacterial Growth Curve: Phases, Significance

Bacterial Growth Curve: Phases, Significance

When bacteria are inoculated into a suitable culture media into an enclosed vessel, such as a tube or a flask, and incubated, their growth follows a definite course. A bacterial growth curve is...

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link to Oxygen Requirements for Pathogenic Bacteria

Oxygen Requirements for Pathogenic Bacteria

Microorganisms can be characterized by their requirements for oxygen. The oxygen requirements of bacteria reflect the mechanism used to satisfy their energy needs.  Depending on the oxygen...

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