Louis Pasteur

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About Louis Pasteur…

Louis Pasteur

Louis Pasteur was born in Dole on December 27, 1822. He was a French chemist and biologist.

In 1847 he earned a doctorate at the Ecole Normale in Paris, with a focus on both physics and chemistry.

In 1845 he worked on bacteria. He found that the desired production of alcohol in fermentation is indeed due to yeast. The undesired one is due to the presence of additional organisms such as bacteria.

Because he was aware of the presence of microorganisms in nature, in 1864 Pasteur undertook several experiments to find out where these “germs” came form.

In 1865 he found a method to destroy harmful bacteria without materially changing the composition, flavor, or nutritive value of liquid. That Process was named after him, pasteurization.

Pasteur also determined the natural history of anthrax, a fatal disease of cattle. He proved that anthrax is caused by a particular bacillus. He suggested that animals could given anthrax in a mild from by vaccinating them with weakened bacilli. This vaccine provided immunity from potentially fatal attacks.

Lois Pasteur contributed so much to the public sanitation. He founded the science of microbiology, proved the germ theory of disease, invented the process of pasteurization, and developed vaccines of several diseases, including rabies.

Summarized from English On Sky 2 and Microsoft Encarta Reference Library 2005. © 1993-2004 Microsoft Corporation.


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