One of the mysteries of the English language finally explained.
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.’
- ‘They ruminate and use bacterial fermentation to help digest their food.’
- ‘In the lower part of the digestive system it can be a major irritant, causing inflammation and bacterial/fungal fermentation.’
- ‘It has been suggested that fermentation by particular yeasts or bacteria does not necessarily decrease fruit palatability, but could even increase it.’
- ‘Toward the end of the nineteenth century, Harden began an intense study of the fermentation process, particularly alcoholic fermentation.’
- ‘We can assemble a history of yeast fermentation from this information now.’
- ‘All bovids have a four-chambered stomach and digest cellulose through bacterial fermentation.’
- ‘Ethanol is a naturally occurring substance resulting from the fermentation by yeast of fruit sugars.’
- ‘They are toxic chemicals formed during fermentation.’
- ‘Gas is caused by the fermentation of carbohydrates broken down by bacteria, a perfectly normal part of digestion.’
- ‘By the time the grapes are boxed and shipped across the island, heat and humidity have triggered fermentation from natural yeasts.’
- ‘The bacteria naturally present during fermentation use up most of the lactose in these products.’
- ‘Competition among microbes for access to fruit sugars is intense, and may have elicited the initial evolution of ethanolic fermentation by yeast as a means of killing bacterial competitors.’
- ‘The process of fermentation converts sugars in the dough to carbon-dioxide which causes the bread to rise.’
- ‘When we convert the sugars into alcohol by fermentation, we release carbon dioxide and produce a flammable fuel that can be burned in an engine.’
- ‘As a result, partial chemical/enzymatic digestion and limited bacterial fermentation occur.’
- ‘Eventually the acid becomes so concentrated that even the ‘good’ bacteria are inhibited: fermentation stops and the food keeps.’
- ‘An even stranger inorganic metabolism, inorganic fermentation, is conducted by some bacteria.’
- 1.1 The process of fermentation involved in the making of beer, wine, and liquor, in which sugars are converted to ethyl alcohol.
- ‘The fact that the beer is still in the process of fermentation means that it is as fresh and flavourful as possible.’
- ‘So, if the winemakers want a softer wine with buttery characteristics - a Chardonnay, for example - they put the wine through malolactic fermentation.’
- ‘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.’
- ‘When a few wine makers had the idea to release their Beaujolais wines right after fermentation they didn't realize the impact this would have on their region.’
- ‘Even if this had been grape juice, it would soon turn to wine because the fermentation process would immediately begin.’
- ‘The high sugar Muscat grapes have their natural fermentation into dry wine stopped artificially by adding neutral raw alcohol to the vats of wine.’
- ‘They can have the positive effect of precipitating malolactic fermentation in wines with an excess of malic acid.’
- ‘Although the wine is ice cold and has barely finished malolactic fermentation, the extraordinary breed and complexity of the wine are already clearly showing.’
- ‘In the second, essentially a truncated red wine fermentation, the bubbling juice is left in contact with the skins for a few days, then run off into its own vat.’
- ‘The yeast is kept in the beer, and the beer undergoes secondary fermentation over a period of time in the cask.’
- ‘Since fermentation involves the conversion of sugar to alcohol, grapes that are overly ripe and high in sugar become wines that have an alcoholic burn and often taste unbalanced and one-dimensionally sweet.’
- ‘After fermentation these wines go into the same type of casks as wines destined to become Fino.’
- ‘Fortified wines can be sweet or dry, depending on whether the spirit is added during or after fermentation of the base wine.’
- ‘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.’
- ‘Since fermentation produces a substantial amount of heat, the tanks must be cooled constantly to maintain the proper temperature.’
- ‘Some faulty wines undergo a secondary fermentation in the bottle, due to a small amount of yeast and sugar left inadvertently in the wine.’
- 1.2archaic Agitation; excitement.‘I had found Paris in high fermentation’
Late Middle English: from late Latin fermentatio(n-), from Latin fermentare ‘to ferment’ (see ferment).
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