EVERYDAY SCIENCE

Detailed explanation-1: -In 1864, Louis Pasteur developed a method of killing harmful bacteria and extending the shelf life of commonly consumed beverages.

Detailed explanation-2: -In 1862, a French chemist named Louis Pasteur discovered that heat kills germs in liquids, preventing bacterial growth, food spoilage and foodborne illnesses. He used his discovery to invent methods that have been used for the last 150 years as a sanitary treatment for milk – which at the time was a prime source of TB.

Detailed explanation-3: -Pasteur’s first vaccine discovery was in 1879, with a disease called chicken cholera. After accidentally exposing chickens to the attenuated form of a culture, he demonstrated that they became resistant to the actual virus.

Detailed explanation-4: -Pasteur’s research in the 1880s demonstrated that, without contamination, microorganisms could not develop. Experimenting with wine, he showed that thermal processing would inactivate unwanted microorganisms in sterilized and sealed flasks that, when opened, allowed them to grow.