Publication

Biocatalysts having an enzymic activity, and products obtained

Albert Renken
1983
Patents

Abstract

An enzyme carrier is prepd. by coating 0.1-0.25 mm mineral particles with chitosan [9012-76-4] and binding it with glutaraldehyde [111-30-8], which may be reduced by NaBH4. Alternatively, an enzyme may be bonded to the chitosan layer by a carbodiimide to stabilize the enzyme. Thus, 8 g chitosan in 300 mL HOAc + 400 mL water was left overnight with a suspension of 120 g silica gel, transferred to a glutaraldehyde soln. for 2 h, and agitated gently with an invertase [9001-57-4] soln. at pH 4 which immobilized 89% of the enzyme without any loss of activity. [on SciFinder (R)]

Official source

https://infoscience.epfl.ch/entities/publication/284149a1-47b9-44a6-a111-fee9a2d142d7

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Albert Renken
1983
Patents

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/284149a1-47b9-44a6-a111-fee9a2d142d7

About this result

Related concepts (32)

Enzyme

Enzymes (ˈɛnzaɪmz) are proteins that act as biological catalysts by accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products. Almost all metabolic processes in the cell need enzyme catalysis in order to occur at rates fast enough to sustain life. Metabolic pathways depend upon enzymes to catalyze individual steps.

Enzyme inhibitor

An enzyme inhibitor is a molecule that binds to an enzyme and blocks its activity. Enzymes are proteins that speed up chemical reactions necessary for life, in which substrate molecules are converted into products. An enzyme facilitates a specific chemical reaction by binding the substrate to its active site, a specialized area on the enzyme that accelerates the most difficult step of the reaction.

Enzyme activator

Enzyme activators are molecules that bind to enzymes and increase their activity. They are the opposite of enzyme inhibitors. These molecules are often involved in the allosteric regulation of enzymes in the control of metabolism. An example of an enzyme activator working in this way is fructose 2,6-bisphosphate, which activates phosphofructokinase 1 and increases the rate of glycolysis in response to the hormone glucagon.

Related publications (10)

Biocatalysts having an enzymic activity, and products obtained

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