How Do Chemical Agents Affect Bacterial Growth?

Bacteria can be found everywhere! , also in place it should not be in , so we can use different techniques to reduce the number of bacteria to reach safety stage or to eliminate them completely by different chemical agents and physical methods.and in this experiment we will talk about chemical agent and its affect on bacteria which depends on the concentration ,type and intensity of agent , the length of exposure to the agent , the number of microorganism present and the material bearing the microorganism . Bacterial growth can be controlled by chemical agents such as: sterilization in which we kill all living organisms. Disinfection, decontamination, disinfectant, antiseptic, sanitizer and antibiotic are another chemical agents that can used to affect on bacterial growth. Chemical methods involve the application of specific chemical agents which inhibit growth or kill microbes on the surface of skin. The determineing of an suitable technique is important, because many chemical agents can cause damage to the cells and tissues of the individual as well as the microbes.
Many chemicals are used to control microbial growth.
The methods of action of these chemicals vary, but the most common actions are damage of cell membranes or involvement with nucleic acid or protein producing. chemicals are classified as antiseptics, disinfectants, or antibiotics , which are the most commonly used. Antiseptics are chemicals which are killing or inhibit the growth of microorganisms. Antiseptics may be used to treat wound or used before starting the operations (it can be used on animal tissues). Disinfectants ) cannot be used on animal tissue, not safe!). Disinfectants find wide use in our daily life in the home, laboratory, hospital, and food industries. And any other place it should not have bacteria on or in it
.! Bacteria try to resist the chemical agent , antibiotic resistance can either be inherent or acquired. Some bacteria are naturally resistant to some antibiotics due to their physiological charactaristics. This is inherent resistance, and other acquired , for example it can gaining it from another bacterial chromosome or plasmid . prevent infection from microorganisms is important to protect the human cells from mutation and damaging to decrease the diseases that comes from them the control of microbial growth is necessary in many practical situations, and significant advances in agriculture, medicine, and food science have been made through study of this part of microbiology. Sterilization procedure involve the use of heat, radiation or chemicals, or physical removal of cells.