1The chemical breakdown of a substance by bacteria, yeasts, or other microorganisms, typically involving effervescence and the giving off of heat.
- Some short-chain fatty acids are produced by bacterial fermentation of dietary carbohydrates.
- As a result, partial chemical/enzymatic digestion and limited bacterial fermentation occur.
- Gas is caused by the fermentation of carbohydrates broken down by bacteria, a perfectly normal part of digestion.
1.1The process of fermentation involved in the making of beer, wine, and liquor, in which sugars are converted to ethyl alcohol.
- They can have the positive effect of precipitating malolactic fermentation in wines with an excess of malic acid.
- There are a variety of ways to vinify sparkling wine, but all are based on taking an already fermented wine through a second fermentation process in a sealed container.
- Pump an oak-loving white grape into a barrel to ferment and a richer, creamier wine is the result; finish off a red wine's fermentation in barrel and the reward is a softer, more approachable wine.
- Example sentences
- By definition, foregut fermentors comprise animals with a pregastric fermentation chambers such as the rumen, reticulum, and omasum of ruminants and diverticula or fermentative sacs of other ruminant-like mammals.
- It is well established that adaptive responses, such as increased alcohol dehydrogenase gene expression and fermentative metabolism, are initiated under conditions of hypoxia, as well as anoxia.
- The fermentative activity of these microbes results in the production of volatile fatty acids that are absorbed by the host animal and make a variable and in some cases considerable contribution to its nutritional economy.
Late Middle English: from late Latin fermentatio(n-), from Latin fermentare 'to ferment' (see ferment).
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