Article · Wikipedia archive · Last revised Jun 7, 2026

Cellulase unit

A cellulase unit (CU) is a unit of measurement for the enzyme cellulase. One cellulase unit is that activity that will produce a relative fluidity change of one in 5 minutes in a defined carboxymethylcellulose substrate under the conditions of an assay. Cellulases enzymatically split cellulose into a variety of hexoses, this is called hydrolysis.

Last revised
Jun 7, 2026
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A cellulase unit (CU) is a unit of measurement for the enzyme cellulase. One cellulase unit is that activity that will produce a relative fluidity change of one in 5 minutes in a defined carboxymethylcellulose substrate under the conditions of an assay (50 deg Celsius, pH 4.5).1 Cellulases enzymatically split cellulose2 into a variety of hexoses, this is called hydrolysis.

References

References

  1. Eagle Pack Archived February 21, 2009, at the Wayback Machine, additional text.
  2. GMO Database Archived 2009-06-27 at the Wayback Machine, function and food application.