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  2. Ethanol fermentation - Wikipedia

    en.wikipedia.org/wiki/Ethanol_fermentation

    Ethanol contained in alcoholic beverages is produced by means of fermentation induced by yeast. Liquors are distilled from grains, fruits, vegetables, or sugar that have already gone through alcoholic fermentation. Alcohol products: Natural sugars present in grapes;

  3. Yeast in winemaking - Wikipedia

    en.wikipedia.org/wiki/Yeast_in_winemaking

    The primary role of yeast is to convert the sugars present (namely glucose) in the grape must into alcohol.The yeast accomplishes this by utilizing glucose through a series of metabolic pathways that, in the presence of oxygen, produces not only large amounts of energy for the cell but also many different intermediates that the cell needs to function.

  4. Fermentation in winemaking - Wikipedia

    en.wikipedia.org/wiki/Fermentation_in_winemaking

    A winemaker who wishes to make a wine with high levels of residual sugar (like a dessert wine) may stop fermentation early either by dropping the temperature of the must to stun the yeast or by adding a high level of alcohol (like brandy) to the must to kill off the yeast and create a fortified wine. [11]

  5. Ethanol - Wikipedia

    en.wikipedia.org/wiki/Ethanol

    Fermentation is the process of culturing yeast under favorable thermal conditions to produce alcohol. This process is carried out at around 35–40 °C (95–104 °F). Toxicity of ethanol to yeast limits the ethanol concentration obtainable by brewing; higher concentrations, therefore, are obtained by fortification or distillation .

  6. 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.

  7. 8 Nonalcoholic Wines That Taste Just As Good As the Real Thing

    www.aol.com/8-nonalcoholic-wines-taste-just...

    Actual wine is much simpler: grapes, and yeast to ferment their juice. Minimal sulfur dioxide for preservation. Note also that even de-alcoholized wine usually has trace amounts of alcohol — 0.5 ...

  8. Yeast - Wikipedia

    en.wikipedia.org/wiki/Yeast

    The dying yeast cells are then heated to complete their breakdown, after which the husks (yeast with thick cell walls that would give poor texture) are removed. Yeast autolysates are used in Vegemite and Promite (Australia); Marmite (the United Kingdom); the unrelated Marmite (New Zealand); Vitam-R (Germany); and Cenovis (Switzerland).

  9. Sugars in wine - Wikipedia

    en.wikipedia.org/wiki/Sugars_in_wine

    During fermentation, glucose is consumed first by the yeast and converted into alcohol. A winemaker that chooses to halt fermentation (either by temperature control or the addition of brandy spirits in the process of fortification ) will be left with a wine that is high in fructose and notable residual sugars.