Difference Between Disinfection and Sterilization: Disinfection and sterilization are both methods of sanitization, but they differ in their goals and the methods used to achieve them. Disinfection is the destruction or reduction of harmful microorganisms on inorganic objects and surfaces, while sterilization is the complete elimination of all microorganisms.
Sterilization is a more rigorous process than disinfection and is used where destruction of microorganisms is essential, e.g. in critical operations, laboratories, hospitals and industrial environments. Disinfection is a simpler method that is suitable for everyday use. This article explains the difference between disinfection and sterilization, including the methods used to achieve each objective, the types of microorganisms to be controlled and the areas where both methods are commonly used.NEET Biology Syllabus | NEET Biology Diagrams |
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Microorganisms have the potential to cause a broad spectrum of diseases in humans and animals, and they may also endanger health by contaminating food. As a result, eliminating or inhibiting their growth is beneficial in mitigating their negative effects. Decontamination is the process of removing harmful microorganisms from a medical device, instrument, or environment by killing or inhibiting their growth. Decontamination may be accomplished via a variety of methods, including disinfection, sterilization, and antisepsis. Disinfection and sterilization are both terms used to describe the process of killing or inhibiting the growth of microorganisms. Sterilization and disinfection are critical in the pharmaceutical industry for ensuring that products are free of harmful microorganisms and contaminants. However, there are significant differences between disinfection and sterilization, as outlined below.
Difference Between Disinfection and Sterilization | ||
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Character | Disinfection | Sterilization |
Definition | Minimizes the number of harmful microbes to a negligible level. | Completely eliminates all microbes from the medium. |
Method | Utilizes chemical methods for disinfection. | Employs a combination of heat, irradiation, high pressure, chemical, and physical methods. |
Effect | Targets only vegetative cells, not spores. | Targets both vegetative cells and spores. |
Microbes | Reduces the impact of microbes. | Completely eradicates microbes from the surface. |
Wounds | Disinfects wounds. | Wounds cannot be sterilized. |
Cleanliness | Requires adequate cleanliness. | Demands extreme cleanliness. |
Use | Applicable in daily life. | Primarily used for medical and research purposes. |
Techniques | Utilizes disinfecting agents like phenol, alcohol, chlorine, iodine, etc. | Involves sterilization techniques such as high temperatures, steam, radiation, filtration, etc. |
Example | Examples include pasteurization, disinfecting urinals, etc. | Illustration includes the sterilization of instruments used during surgery by autoclaving. |