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  2. Yeast in winemaking - Wikipedia

    en.wikipedia.org/wiki/Yeast_in_winemaking

    This can be achieved by dropping fermentation temperatures to the point where the yeast are inactive, sterile filtering the wine to remove the yeast or fortification with brandy or neutral spirits to kill off the yeast cells. If fermentation is unintentionally stopped, such as when the yeasts become exhausted of available nutrients and the wine ...

  3. Fermentation in winemaking - Wikipedia

    en.wikipedia.org/wiki/Fermentation_in_winemaking

    Bottle fermentation is a method of sparkling wine production, originating in the Champagne region where after the cuvee has gone through a primary yeast fermentation the wine is then bottled and goes through a secondary fermentation where sugar and additional yeast known as liqueur de tirage is added to the wine. This secondary fermentation is ...

  4. Glossary of winemaking terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_winemaking_terms

    Yeast assimilable nitrogen, a measurement of amino acids and ammonia compounds that can be used by wine yeast during fermentation Yeast A microscopic unicellular fungi responsible for the conversion of sugars in must to alcohol. This process is known as alcoholic fermentation. Yeast enzymes The enzymes within yeast cells that each act as a ...

  5. Saccharomyces cerevisiae - Wikipedia

    en.wikipedia.org/wiki/Saccharomyces_cerevisiae

    S. cerevisiae is used in baking; the carbon dioxide generated by the fermentation is used as a leavening agent in bread and other baked goods. Historically, this use was closely linked to the brewing industry's use of yeast, as bakers took or bought the barm or yeast-filled foam from brewing ale from the brewers (producing the barm cake ...

  6. Winemaking - Wikipedia

    en.wikipedia.org/wiki/Winemaking

    To start primary fermentation, yeast may be added to the must for red wine, or may occur naturally as ambient yeast on the grapes (or in the air). For white wine, yeast may be added to the juice. During this fermentation, which often takes between one and two weeks, the yeast converts most of the sugars in the grape juice into ethanol (alcohol ...

  7. Yeast - Wikipedia

    en.wikipedia.org/wiki/Yeast

    Fermentation of sugars by yeast is the oldest and largest application of this technology. Many types of yeasts are used for making many foods: baker's yeast in bread production, brewer's yeast in beer fermentation, and yeast in wine fermentation and for xylitol production. [57] So-called red rice yeast is actually a mold, Monascus purpureus.

  8. Zymology - Wikipedia

    en.wikipedia.org/wiki/Zymology

    Beer fermenting at a brewery. Zymology, also known as zymurgy, [a] is an applied science that studies the biochemical process of fermentation and its practical uses. Common topics include the selection of fermenting yeast and bacteria species and their use in brewing, wine making, fermenting milk, and the making of other fermented foods.

  9. Fermentation in food processing - Wikipedia

    en.wikipedia.org/wiki/Fermentation_in_food...

    Grapes being trodden to extract the juice and made into wine in storage jars. Tomb of Nakht, 18th dynasty, Thebes, Ancient Egypt. Sourdough starter. In food processing, fermentation is the conversion of carbohydrates to alcohol or organic acids using microorganisms—yeasts or bacteria—without an oxidizing agent being used in the reaction.

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