Sterilization vs disinfection || sterilization process || Sterilization techniques

Sterilization & Disinfection

Definition

Sterilization is is definite defined as the process by which all microorganism vegetative cells and sports are removed from an article or surface area.

Disinfection is a process of destruction of pathogenic organisms capable of giving rise to infection.

Antiseptic agent prevention infection by inhibiting growth of bacteria.

Bactericidal agents are those which can kill bacteria.

bacteriostatic agent only prevention multiplication of bacteria it's do not kill bacteria.

           Method of sterilization

Physical method 

Chemical method

Physical sterilization

the physical instrumentation involved the following methods.

Sunlight

the sunlight is process bactericidal activity

this action is due to ultraviolet rays this is one of the natural method of sterilization in case of water in tank river and lake.

Drying

Moisture is essential for growth of bacteria drying in air has therefore a deleterious effect on own many bacteria however this method is unreliable,  as spore are not affected by drying.

Heat

Heat is the most suitable method for sterilization.

digitalization by heating depend on temperature time number of organisms present type of material to be sterilized and spore of the organism.

Dry heat 

Moist heat