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At the request of a distiller named Bigo from the north of France, Pasteur began to examine why alcohol becomes contaminated with undesirable substances during fermentation. He soon demonstrated that each sort of fermentation is linked to the existence of a specific microorganism or ferment -- a living being that one can study by cultivation in an appropriate, sterile medium. This insight is the basis of microbiology.

Pasteur delivered the fatal blow to the doctrine of spontaneous generation, the theory held for 20 centuries that life could arise spontaneously in organic materials. He also developed a germ theory. At the same time, he discovered the existence of life without oxygen: "Fermentation is the consequence of life without air". The discovery of anaerobic life paved the way for the study of germs that cause septicemia and gangrene, among other infections. Thanks to Pasteur, it became possible to devise techniques to kill microbes and to control contamination.

2006-10-02 10:24:33 · 5 answers · asked by Princess 1 in Education & Reference Homework Help

5 answers

Hm... short version:

Pasteur discovered the following:
- microorganisms cause fermentation
- microorganisms can be cultivated
- whole organisms do not come from nowhere (yes, some people thought that)
- some life can exist without oxygen

Hope that helps!

2006-10-02 10:29:29 · answer #1 · answered by Doctor Why 7 · 0 0

By examining contaminated acholic brews, Pasteur proved that life doesn't just come forth from various materials. People in Medieval times used to believe that mice came from old rags left in the corner/soil for example, not that they were born from adult mice. They didn't grasp the concept of micoscopic life very well at all. Pasteur did, and helped people understand better ways to keep food sanitary.

2006-10-02 10:43:20 · answer #2 · answered by xasshaiza_starhand 2 · 0 0

food preparation and preservation was a critical issue back then. People needed to know just how long certain liquids could be stored and processed so it wouldn't make people sick. Pasteur found out what was making people sick and figured out a process to make it safer.

2006-10-02 10:30:54 · answer #3 · answered by bardstale 4 · 0 0

Process of pasteurization

2006-10-02 10:28:44 · answer #4 · answered by longroad 5 · 0 0

lol u tryna get somebody to do yo homework for you

2006-10-02 10:27:34 · answer #5 · answered by Anonymous · 0 0

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