G7907
Galactose Oxidase from Dactylium dendroides
≥30 units/mg solid
Synonym(s):
D-Galactose:oxygen 6-oxidoreductase
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About This Item
Recommended Products
biological source
fungus (Dactylium dendroides)
Quality Level
form
lyophilized
specific activity
≥30 units/mg solid
storage temp.
−20°C
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General description
Galactose oxidase is a member of radicalcoupled copper oxidases family. It is a fungal secretory enzyme.
Galactose oxidase is an extracellular copper-containing enzyme, secreted by the deuteromycete fungus Dactylium dendroides. It catalyzes the oxidation of a range of primary alcohols, including D-galactose, to the corresponding aldehyde, with reduction of oxygen to hydrogen peroxide.
Application
Galactose Oxidase from Dactylium dendroides has been used as a component for galactose oxidase treatment of arabinogalactan. It has also been used to co-immobilise with peroxidase for the preparation of a biosensor for galactose detection.
Galactose oxidase may be used as an analytical tool for the specific determination of D-galactose in blood plasma, plant extracts, and phospholipids. It could be used for the characterization of terminal D-galactoside units in several polymers. It may also be useful in the determination of lactose.
Biochem/physiol Actions
Galactose oxidase catalyzes the coversion of D-galactose to D-galacto-hexodialdose.
2-Deoxy-D-galactose, lactose, melibiose, raffinose and stachyose react with galactose oxidase in the peroxidase:o-tolidine system.
Essentially no oxidation of D-glucose, L-galactose, L-arabinose or D-glucuronate has been observed.
2-Deoxy-D-galactose, lactose, melibiose, raffinose and stachyose react with galactose oxidase in the peroxidase:o-tolidine system.
Essentially no oxidation of D-glucose, L-galactose, L-arabinose or D-glucuronate has been observed.
Galactose oxidase has several applications in bioanalytics and histology. This free radical enzyme possess high substrate specificity.
Unit Definition
One unit will produce a ΔA425 of 1.0 per min at pH 6.0 at 25 °C, in a peroxidase and o-tolidine system. Reaction volume = 3.4 mL. Light path = 1 cm.
Physical form
Lyophilized, contains buffer salts and stabilizer
Preparation Note
Chromatographically purified
inhibitor
Product No.
Description
Pricing
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Danger
hcodes
pcodes
Hazard Classifications
Resp. Sens. 1
Storage Class
11 - Combustible Solids
wgk_germany
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificates of Analysis (COA)
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Journal of bacteriology, 130(1), 455-463 (1977-04-01)
The effects of pH and growth density on the amount of an extracellular enzyme, galactose oxidase, synthesized by the fungus Dactylium dendroides were studied. Growth at a pH below 6.7 caused a decrease in the ability of the organism to
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The effects on enzyme production of inoculum size and age, medium composition, and culture conditions were studied in shake flasks and in a pilot-plant fermentor. Using a medium consisting of glucose, yeast extract, and inorganic salts in deionized water, we
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