The following points highlight the six main physical factors affecting the growth of microorganisms. The factors are: 1. Solutes and Water Acidity 2. Temperature 3. pH 4. Oxygen Requirements 5. Pressure 6. Radiation. Factor # 1. Solutes and Water Acidity: Water is one of the most essential requirements for life. Thus, its availability becomes most important factor for the growth [...]
In this article we will discuss about the characteristics and factors influencing antimicrobial agent. Characteristics of Antimicrobial Agent: 1. The capacity of the substance to kill or inhibit microorganisms is the first requirement. The chemical should possess a broad spectrum of antimicrobial activity at a low concentration. 2. The chemical substance must be soluble in water or other solvents to [...]
The following points highlight the top three physical methods used to kill microorganisms. The physical methods are: 1. Heat (Temperature) Sterilization 2. Filtration 3. Radiation. 1. Heat (Temperature) Sterilization: Fire and boiling water have been used for sterilization and disaffection since the time of the Greeks, and heating is still one of the most popular ways to kill microorganisms. Microorganisms [...]