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In the field of food processing, pasteurization ( also pasteurisation) is a process of food preservation in which packaged and unpacked foods (e.g., milk and fruit juices) are treated with mild heat, usually to less than 100 °C (212 °F), to eliminate pathogens and extend shelf life. Pasteurization either destroys or deactivates microorganisms ...
May 15, 2022 · How a pasteurizer works. A typical pasteurizer is completely automatic. You pour milk in one end and it flows between a set of heating pipes or plates for a set period of time (long enough to kill off most of the harmful bacteria), then between a set of cooling pipes, before emerging from an outlet pipe into the bottles.
Jul 4, 2024 · pasteurization, heat-treatment process that destroys pathogenic microorganisms in certain foods and beverages. It is named for the French scientist Louis Pasteur, who in the 1860s demonstrated that abnormal fermentation of wine and beer could be prevented by heating the beverages to about 57 °C (135 °F) for a few minutes.
- The Editors of Encyclopaedia Britannica
The cell simply ceases to function. Heat can also damage the bacterium's cell envelope. Proteins and fatty acids making up the envelope lose their shape, weakening it. At the same time, fluid inside the cell expands as the temperature rises, increasing the internal pressure. The expanding fluid pushes against the weakened wall and causes it to ...
Jan 1, 1970 · The only food preservation practices at the time included curing, canning and fermenting. And we knew how to delay food spoilage, but knew little about what caused it. It would take a deeper understanding of what made foods go bad before the method of pasteurization could be developed. The theory of spontaneous generation served as a popular ...
Dec 16, 2022 · December, 2022, marks the 200th year of Louis Pasteur's birth in Dole, France. Among Pasteur's major contributions and their benefit to society, the most important is the heat treatment of foods and beverages to reduce spoilage and eliminate pathogens for consumers. This process became known as pasteurisation while Pasteur was still alive.
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May 17, 2024 · What can make milk unsafe. Dairy products, like many foods, have inherent risks that can cause a variety of illnesses and even death. Our milk comes from animals that graze outdoors and live in barns.
