Can we run the Cellazyme T tablet method (T-CTZ) at pH 6.2 instead of pH 4.5?

You can run the Cellazyme method at pH 6.2. We suggest that you use a Maleate buffer (prepared from maleic acid at 25 mM concentration). We would also suggest that you stop the reaction with tri-sodium phosphate (adjusted to pH 11.0). This will however affect the standard curve as different parameters are being used. A new standard curve can be generated using your own conditions by standardising the activity of a purified endo-cellulase on say CM-Cellulose 4M with Nelson/Somogyi reducing sugar method. Then, use this standardised enzyme to produce your standard curve. This is the way we produce our standard curves.

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