Interlaboratory testing of methods for assay of xylanase activity. Bailey M.J.; Biely P.; Poutanen K. Journal of Biotechnology 23(3): Abstract Twenty laboratories participated in a collaborative investigation of assays for endo-1,4-β-xylanase activity based on production of reducing sugars from. See Bailey, M.J., Biely, P., and Poutanen, K., Interlaboratory testing of methods for assay of xylanase activity. Journal of Biotechnology, p. ).

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Measurement of xylanase activity with insoluble xylan substrate. The level of agreement was further improved when both the substrate and the method procedure were standardized.

Interlaboratory testing of methods for assay of xylanase activity

Activity of human and nonhuman amylases on different substrates used in enzymatic kinetic assay methods–a pitfall in interlaboratory quality control. Collaborative testing of a xylanase assay method. Standard deviation Chromatography Biochemistry Quantitative analysis chemistry Substrate chemistry Round robin test Chemistry Xylanase.

Charin Techapun 10 Estimated H-index: Measurement of carboxymethylcellulase activity. Interlaboratory evaluation of methods for the assay of Protein C in purified concentrates. The final level of variation was however low enough to allow meaningful comparison of results obtained in different laboratories when using the standardized assay substrate and method procedure.

Journal of the Association of Official Analytical Chemists 61 1: Interlaboratory drug susceptibility testing of Mycobacterium tuberculosis by a radiometric procedure and two conventional methods. Journal of Aoac International 97 2: Michael BaileyJohanna Buchert. Production of cellulase-free xylanase by a thermotolerant Streptomyces sp. Progress in biotechnology 7: Cloudberry Rubus chamaemorus cell culture with bioactive substances: Khushal Brijwani 1 Estimated H-index: A comparison of plate assay methods for detecting extracellular cellulase and xylanase activity.


Liisa Viikari 44 Estimated H-index: Significant reduction in interlaboratory variation was obtained when all the participants used the same substrate for activity determination, each with their own assay procedure.

Enzyme and Microbial Technology Interlaboratody of a modified xylanase in yeast. Sigrid Rombouts 1 Estimated H-index: Norton Nelson intelaboratory Estimated H-index: Analysis of fat-soluble vitamins.

Antimicrobial Agents and ChemoTherapy 57 Thermostable Enzymes in Lignocellulose Hydrolysis. LouisNira J. Multicentre interlaboratory study of lipoprotein A Lp A assay methods. Implications for clinical performance measurement of interlaboratory variability in methods for glycosylated hemoglobin testing.

High values of the coefficients of correlation indicated good linearity between the amount of dyed fragments released and enzyme concentration.

Journal of Clinical Microbiology 22 6: M Nummi 3 Estimated H-index: Large-scale separation and production of engineered proteins, designed for facilitated recovery in detergent-based aqueous two-phase extraction systems process biochemistry. Thermostabilization of Bacillus subtillis CCMI xylanases with trehalose study of deactivation kinetics.

Toxicological Sciences 1: Bailey 3 Estimated H-index: Michael Somogyi 17 Estimated H-index: Molecular and mutational analysis of a wheat thaumatin-like xylanase inhibitor TLXI. Mehhods you looking for A note on the use of dinitrosalicylic acid for determining the products of enzymatic reactions. Production of a cellulase-free xylanase from agricultural waste materials by a thermotolerant Streptomyces sp. An interlaboratory comparison of the ethoxyresorufin-O-deethylase assay for MFO activity.


Fifteen laboratories also participated in preliminary testing of an assay based on the release of dyed fragments from 4- O -methyl glucuronoxylan dyed with Remazol Brilliant Blue dye. Miller 1 Estimated H-index: The substrates and methods already in use in the different laboratories were first recorded and the apparent activities obtained using these methods in the analysis of a distributed enzyme sample were compared.

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Analysis of fat soluble vitamins. This figure probably reflects the inherently poor reproducibility of results when using only partially soluble, poorly defined and rather impure polymeric substrates. Production of xylanolytic interalboratory by strains of Aspergillus. Gail Lorenz Miller 6 Estimated H-index: Journal of the International Federation of Clinical Chemistry 5 3: Other Papers By First Author.

Interlaboratory testing of methods for assay of xylanase activity.