Vaccination,Fermentation, Pasteurization and Germ theory of diseases

by Author on Tuesday, September 03, 2019 in ICDS Supervisor Exam, Microbiology

Vaccination,Fermentation, Pasteurization and Germ theory of diseases

Vaccination:

Edward Jenner a young British Physician used scraping of cowpox blister to vaccinate against sheep pox.

Fermentation:

Microorganism like yeast converts sugar to alcohol in the absence of air this process is called fermentation.

It is used to make wine & beer.

In the presence of air bacteria convert alcohol into acetic acid or vinegar.

Pasteurization:

It is the heat treatment of beverage & milk at 72 ̊ ̊ ̊ C for 30 min to kill microorganism (which causes spoilage of liquid) in food without compromising on its quality.

Now a day it is only used for milk product.

Germ theory of diseases:

Microorganisms are the cause of disease.

In 1860’s English surgeon Joseph Lister use phenol, Carbolic acid as a disinfectant & antiseptic solution.

This practice reduced the incidence of infection & death others surgeon readily adopted it.

Lister technique was the earliest medical attempt to control infection caused by microorganism.

This topic is important for the ICDS Supervisor Exam.Click HERE.

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