Question

Compare and contrast microbial growth control mechanisms

Physical

Chemical

Mechanical

Answer 1

Ans: Control of growth usually involves the use of physical or chemical agents which either kill or prevent the growth of microorgaisms. For thousands of years,humans have used physical methods of microbial control for food preservation. Physical agents include such methods of control as high or low temperature is,desiccation ( drying), osmotic,. Pressure, radiation and filtration. Control by chemical agents refers to the use of disinfectants, antiseptics, antibiotics,and chemotherapeutic antimicrobial chemicals. Mechanical: feltration and osmotic pressure all these methods control of microorganisms by physical and chemical.