Determination of Urinary Oxalate with Arylamine Glass-Bound Sorghum Oxalate Oxidase and Horseradish Peroxidase

  • M. Thakur Department of Pathology, Dr B.R.Sur Homoeopathic Medical College & Hospital, Nanakpura, New Delhi
  • A.K. Bhargava Department of Biochemistry, Jhalawar Medical College, Jhalawar, Rajasthan
  • C.S. Pundir Department of Biochemistry, Maharshi Dayanand University, Rohtak-124001, Haryana
Keywords: Oxalate oxidase, peroxidase, arylamine glass beads, oxalate, urine

Abstract

We describe an enzymic colourimetric method for determination of oxalate level in urine using arylamine glass-bound sorghum leaf oxalate oxidase and horseradish peroxidase. The method is based on quantification of H2O2 generated from oxidation of urinary oxalate by immobilized oxalate oxidase, by a colour reaction consisting of 4-aminophnazone, phenol and immobilized peroxidase as chromogen. Minimum detection limit of the method was 0.05 mmol/l. Analytical recovery of added oxalate in urine was 96.8± 3.0% (mean ±S.D.). Within and between day coefficient of variation (CV) for urinary oxalate in urine were < 3.5% and <6.46 % respectively. The urinary oxalate values in apparently healthy and urinary stone formers as measured by the present method were correlated with those by modified Sigma Kit method (r= 0.929). The method has the advantages that it provides ca 200 times reuse of oxalate oxidase and peroxidase and free from interferences by Cl- and NO3- normally found in urine. 

Int J Appl Sci Biotechnol, Vol 4(3): 346-351

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Abstract
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Published
2016-09-26
How to Cite
Thakur, M., Bhargava, A., & Pundir, C. (2016). Determination of Urinary Oxalate with Arylamine Glass-Bound Sorghum Oxalate Oxidase and Horseradish Peroxidase. International Journal of Applied Sciences and Biotechnology, 4(3), 346-351. https://doi.org/10.3126/ijasbt.v4i3.15768
Section
Research Articles