Publication

Acetate production from lactate and glucose fermentation by Gluconobacter oxydans

Urs von Stockar
1994
Journal Articles

Abstract

The prodn. of acetate from the fermn. of lactate by Gluconobacter oxydans was studied. Batch expts. showed that glucose was the preferred substrate compared to lactate. A fed-batch culture was fed with a mixt. of glucose and lactate followed by periodic addn. of lactate. The max. productivity of acetate was 0.16 g/L-h, but this value decreased during fed-batch culture due to growth inhibition by acetate. [on SciFinder (R)]

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Urs von Stockar
1994
Journal Articles

Abstract

Official source

Related concepts (17)

Fermentation

Fermentation is a metabolic process that produces chemical changes in organic substances through the action of enzymes. In biochemistry, it is narrowly defined as the extraction of energy from carbohydrates in the absence of oxygen. In food production, it may more broadly refer to any process in which the activity of microorganisms brings about a desirable change to a foodstuff or beverage. The science of fermentation is known as zymology.

Glucose

Glucose is a sugar with the molecular formula . Glucose is overall the most abundant monosaccharide, a subcategory of carbohydrates. Glucose is mainly made by plants and most algae during photosynthesis from water and carbon dioxide, using energy from sunlight, where it is used to make cellulose in cell walls, the most abundant carbohydrate in the world. In energy metabolism, glucose is the most important source of energy in all organisms. Glucose for metabolism is stored as a polymer, in plants mainly as starch and amylopectin, and in animals as glycogen.

Lactic acid fermentation

Lactic acid fermentation is a metabolic process by which glucose or other six-carbon sugars (also, disaccharides of six-carbon sugars, e.g. sucrose or lactose) are converted into cellular energy and the metabolite lactate, which is lactic acid in solution. It is an anaerobic fermentation reaction that occurs in some bacteria and animal cells, such as muscle cells. If oxygen is present in the cell, many organisms will bypass fermentation and undergo cellular respiration; however, facultative anaerobic organisms will both ferment and undergo respiration in the presence of oxygen.

Related publications (2)

Acetate production from lactate and glucose fermentation by Gluconobacter oxydans

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