who invented the process that destroys harmful bacteria in milk
Pasteurization A less aggressive method was developed by the French chemist Louis Pasteur during an 1864[13] summer holiday in Arbois. To remedy the frequent acidity of the local aged wines, he found out experimentally that it is sufficient to heat a young wine to only about 50–60 °C (122–140 °F) for a short time to kill the microbes, and that the wine could subsequently be aged without sacrificing the final quality.[13] In honour of Pasteur, the process became known as "pasteurization".[2][14] Pasteurization was originally used as a way of preventing wine and beer from souring,[15] and it would be many years before milk was pasteurized. In the United States in the 1870s, it was common for milk to contain substances intended to mask spoilage before milk was regulated.[16]
Breastfeeding In the Egyptian, Greek and Roman empires, women usually fed only their own children.[citation needed] However, breastfeeding began to be seen as something too common to be done by royalty, and wet nurses were employed to breastfeed the children of the royal families. This extended over time, particularly in western Europe, where noble women often made use of wet nurses. Lower-class women breastfed their infants and used a wet nurse only if they were unable to feed their own infant. Attempts were made in 15th-century Europe to use cow or goat milk, but these attempts were not successful. In the 18th century, flour or cereal mixed with broth were introduced as substitutes for breastfeeding, but this provided inadequate nutrition.[citation needed] The appearance of improved infant formulas in the mid 19th century and its increased use caused a decrease in breastfeeding rates, which accelerated after World War II, and for some in the US, Canada, and UK, breastfeeding became seen as uncultured. From the 1960s onwards, breastfeeding experienced a revival which continued into the 2000s, though negative attitudes towards the practice were still entrenched in some countries up to 1990s.[183]