Module 5 : MICROBIAL GROWTH AND CONTROL

Lecture 3: The Use of Physical Methods in Microbial Control

 

Study Questions:

  1. 1.  Define the terms:

    a.  Disinfection

    b.  Sanitization

    c.  Antisepsis

    d.  Bacteriostatic

    2. 2.  What are the physical methods to control microorganisms? Explain the principle of Autoclave.

    3.  Define the process of Pasteurization? Differentiate between High temperature short-term (HTST) pasteurization and Low temperature long-term (HTST) pasteurization.

    4.  For what purpose Biological safety cabinets are used? What is the size of HEPA filters used in Biological safety cabinets?

    5.  In which case filter sterilization is preferred? What is the size of membrane filters used? Give some of the examples.