单词	saponification
释义	saponification noun sa·​pon·​i·​fi·​ca·​tion sə-ˌpä-nə-fə-ˈkā-shən  : the act, process, or result of making soap : conversion into soap Example Sentences Recent Examples on the Web The mixture prompts a chemical reaction called saponification. Erik S. Hanley, Milwaukee Journal Sentinel, 20 Oct. 2021 During the saponification process, the body’s fatty acids turn into a waxy, soap-like compound that covers the corpse and prevents putrefaction. Oscar Urbiola, National Geographic, 29 Oct. 2019 When combined, the reaction is called 'saponification'. Meghan Caudill, Good Housekeeping, 8 Jan. 2018 This allows the soap to finish saponification and for all the excess water to evaporate. Meghan Caudill, Good Housekeeping, 8 Jan. 2018 In a process called saponification, an alkali is used to cause changes in animal or vegetable fats, leaving behind soap and glycerol. C. Claiborne Ray, New York Times, 6 Apr. 2018 In 2011, Joel Ducoste of North Carolina State University and his team reported that the same process that can turn lard into soap, called saponification, happens in sewer grease if calcium’s around. Erika Engelhaupt, National Geographic, 16 Aug. 2017 That's because typical biodiesel processing uses lye, which turns into soap when it's combined with highly fatty oils in a reaction called saponification, Hood said. Brittany Crocker, USA TODAY, 10 Aug. 2017 In other words, the saponification had turned them soap-like. Julia Jones, CNN, 14 July 2017 See More Word History First Known Use 1817, in the meaning defined above Medical Definition saponification noun sa·​pon·​i·​fi·​ca·​tion sə-ˌpän-ə-fə-ˈkā-shən  1 : the hydrolysis of a fat by an alkali with the formation of a soap and glycerol 2 : the hydrolysis especially by an alkali of an ester into the corresponding alcohol and acid broadly : hydrolysis
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