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Enzyme assay with RBB labeled polysaccharides

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Template:BreadcrumbsSecondaryProduction


Polysaccharide hydrolysis
Approach: enzyme assay
Context: incubation, lab
Spatial scale: low
Temporal scale: low; hours to days
Units: relative OD units
Community captured: heterotrophs
Co-measurements: cell abundance

Method Overview

This enzyme assay measures polysaccharide hydrolysis by time course incubation with RBB labeled polysaccharides[1].

The assay is performed in discrete mode on bulk samples.

Scale of measurement

Data generated

Units & currency

Units are relative OD units. The currency is carbon.

Sample size

Typical samples are < 1 L in volume.

Repositories & databases

Limitations

rate measurements at max (Vmax). bottle effects, potential rates.

Example Applications & Protocols

Classic examples

  • Wirth & Wolf (1992) Micro-plate colourimetric assay for Endo -acting cellulase, xylanase, chitinase, 1,3-β-glucanase and amylase extracted from forest soil horizons [1]

Recent applications

  • Zohary et al. (2000) The role of nutrients in decomposition of a thecate dinoflagellate [2]

Common calculations/conversions

References

  1. 1.0 1.1 Wirth & Wolf (1992). Micro-plate colourimetric assay for Endo -acting cellulase, xylanase, chitinase, 1,3-β-glucanase and amylase extracted from forest soil horizons. Soil Biology and Biochemistry, 24(6), 511-519. https://doi.org/10.1016/0038-0717(92)90074-8
  2. Zohary et al. (2000). The role of nutrients in decomposition of a thecate dinoflagellate. Limnology and Oceanography, 45(1), 123-130. https://doi.org/10.4319/lo.2000.45.1.0123