FDSC 270 Lecture Notes - Lecture 3: Thermal Death Time, Louis Pasteur, Bacteriostatic Agent
3 Feb 2017
School
Department
Course
Professor
Document Summary
Proposed the existence of microscopic life forms. Weka forms of disease can be used as immunization. Reducing # of pathogenic microoganisms to the point where they no longer cause diseases via physical or chemical methods. Degerming removal of most microbes in a limited area. Use of chemical agent on food handling equipment to meet public health standards and minimize chance of disease transmission. An agent that inhibits the growth of bacteria, but doesnt kill them. Agent kills bacteria but doesnt kill most spores. Can kill microorganisms by denaturing their enzymes and other proteins. Lowest temp at which all microbes in a liquid suspension will be killed in 10 min. Minimal length of time in which all bacteria will be killed at a given temp. Decimal reduction time time in min at which 90% of bacteria at a given temp will be killed. Heat to 100 c or more at sea level.
