A highly sensitive and accurate spectrophotometric method was developed for determination of guanase activity with guanine as substrate. The assay is based on the oxidative coupling of 3-methyl-2benzothiazolinone hydrazone and N,Ndiethylaniline. Xanthine formed from guanine by guanase is oxidized to
A sensitive method for the assay of hyaluronidase activity
β Scribed by Leslie C. Benchetrit; Sham L. Pahuja; Ernest D. Gray; Ronald D. Edstrom
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 417 KB
- Volume
- 79
- Category
- Article
- ISSN
- 0003-2697
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β¦ Synopsis
A spectrophotometric method for the assay of hyaluronidase activity, based on the binding of a carbocyanine dye (l-ethyl-2-[3-( l-ethyl-naphtho[l,M]
to undegraded substrate, is described. The binding results in a spectral shift with an absorbance maximum at 640 nm which is propo~ional to the amount of hyafuronic acid within a prescribed range. The end products of hyaluronidase activity do not cause a shift in the dye spectrum. The method allows the determination of an amount of hyaluronidase equivalent to 0.00005 NF unit.
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