Definition of propionic acid in English:

Share this entry

propionic acid

Pronunciation: /ˌprōpēˌänik ˈasəd/

noun

Chemistry
A colorless pungent liquid organic acid produced in some forms of fermentation and used for inhibiting the growth of mold in bread.
  • Alternative name: propanoic acid; chemical formula: C2H5COOH
Example sentences
  • Two other simple carboxylic acids are propionic acid and butyric acid.
  • Each population cage contained two standard 240-ml food bottles, each containing 50 ml of standard fly medium containing sucrose, corn meal, yeast, agar, benzoic acid, methyl paraben, and propionic acid.
  • Such breads are almost always chock full of preservatives like sorbic acid and propionic acid, which help to ward off mold.

Origin

Mid 19th century: propionic from French propionique, from Greek pro 'before' + piōn 'fat', it being the first or lowest molecular-weight member of the fatty acid series to form fats.

For editors and proofreaders

Syllabification: pro·pi·on·ic ac·id

Share this entry
 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.