Glucose Oxidase (Aspergillus niger)

Since its discovery as an "antibiotic" (shown subsequently to be due to peroxide formation) there has been an interest in glucose oxidase, chiefly because of its utility in glucose estimation. For most clinical work the crude form of the A. niger enzyme has been satisfactory. However, it contains trace amount of polysaccharidases such as amylase, maltase and sucrase which can contribute to falsely high glucose levels. The purified enzyme is free of these traces and is recommended for analytical use in the presence of di-or polysaccharides. Glucose analytical systems employ the enzyme utilizing H2O2 production reacting with Fe(CN)-in the presence of luminol to produce luminescence proportional to the initial glucose concentration.\n\nApplications: \nSuitable for use in ELISA. Other applications not tested\n\nRecommended Dilution:\nOptimal dilutions to be determined by the researcher.\n\nStorage and Stability:\nMay be stored at 4 degrees C for short-term only. For long-term storage and to avoid repeated freezing and thawing, aliquot and store at -20 degrees C. Aliquots are stable for at least 12 months at -20 degrees C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

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