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  • high
  • This study shows that a constitutive catabolite repressed mutant could be used to enhance the xylose consumption rate even in the presence of high glucose in the fermentation medium. (sun.ac.za)
  • ENGLISH ABSTRACT: Wine fermentation is a continuously changing biological process whereby the raw product, grape juice is transformed into a high value product wine. (sun.ac.za)
  • substrate
  • Dark fermentation is the fermentative conversion of organic substrate to biohydrogen. (wikipedia.org)
  • In general, fermentations can be divided into four types: Production of biomass (viable cellular material) Production of extracellular metabolites (chemical compounds) Production of intracellular components (enzymes and other proteins) Transformation of substrate (in which the transformed substrate is itself the product) These types are not necessarily disjoint from each other, but provide a framework for understanding the differences in approach. (wikipedia.org)
  • enzymes
  • Viability remained at or above 90%, internal pH remained near neutrality, and the specific activities of the glycolytic and alcohologenic enzymes (measured in vitro) remained high throughout batch fermentation. (wikipedia.org)
  • Currently, companies like Genencor International uses the production of enzymes involved in fermentation to build a revenue of over $400 million a year. (wikipedia.org)
  • fermenter
  • A sanitizing solution, sulfur dioxide or alcohol is sometimes placed in the fermentation lock to prevent contamination of the beverage in case the water is inadvertently drawn into the fermenter. (wikipedia.org)
  • symbiotic
  • Examples of traditionally fermented products that use symbiotic fermentation include: Sake, Lambic beer styles, Shochu, Vinegar Soy sauce Furukawa, Soichi (2013). (wikipedia.org)
  • Cultures
  • Similarly, the book's instructions on sauerkraut require only cabbage and salt, relying on the cultures that naturally exist on the vegetable to perform the fermentation. (wikipedia.org)
  • grape
  • Aristotle believed that grape juice was an infantile form of wine and that fermentation was, therefore, the maturation of the grape extract. (factmonster.com)
  • Co-fermentation is the practice in winemaking of fermenting two or more grape varieties at the same time when producing a wine. (wikipedia.org)
  • While co-fermentation in principle could be practiced for any mixture of grape varieties, it is today more common for red wines produced from a mixture of red grape varieties and a smaller proportion of white grape varieties. (wikipedia.org)
  • Grapes grown in vineyards with soils lacking in nitrogen or grape varieties, such as Chardonnay and Riesling, which are naturally prone to have low nitrogen to sugar ratios will be at greater risk for having a stuck fermentation. (wikipedia.org)
  • Foods
  • Along with drying and salting, fermentation was a key method of extending the life of foods, allowing them to be available, and eaten safely, in times of scarcity or seasonal nonavailability. (encyclopedia.com)
  • Fermentation is frequently associated with adult beverages, but it is also used to prepare a variety of foods. (mpm.edu)
  • methane
  • Because of our agricultural reliance in many parts of the world on animals which digest by enteric fermentation, it is one of the factors in increased methane emissions . (wikipedia.org)
  • Enteric fermentation was the second largest anthropogenic source of methane emissions in the United States from 2000 through 2009. (wikipedia.org)
  • microbes
  • This theory states that it is the idea or concept of how fermentation is brought on by microbes and put to the concept of spontaneous generation to rest. (wikipedia.org)
  • contamination
  • These punctures, while not completely airtight, sufficiently protect the vessel's contents from contamination and allow the gases produced by fermentation to evacuate from the vessel as the pressure rises and the balloon inflates. (wikipedia.org)
  • form
  • This device may take the form of a tube connected to the headspace of the fermenting vessel into a tub of sanitized liquid or a simpler device mounted directly on top of the fermentation vessel. (wikipedia.org)
  • wines
  • Co-fermentation is an old practice going back to the now uncommon practice of having field blends (mixed plantations of varieties) in vineyards, and the previous practice in some regions (such as Rioja and Tuscany) of using a small proportion of white grapes to "soften" some red wines which tended to have harsh tannins when produced with the winemaking methods of the time. (wikipedia.org)
  • production
  • Butte, Montana: mile high, mile deep, two miles wide, pH=2.3 Hello Dirk We are working in Pietermaritzburg on solid state fermentation of Trichoderma production as a biocontrol agent. (bio.net)
  • Fermentation simply means the production of alcohol: grains and fruits are fermented to produce beer and wine. (wikipedia.org)