A convenient procedure for the estimation of cellulase activity

Area of Science:

• Biochemistry
• Enzymology

Background:

• Cellulase enzymes are crucial for breaking down cellulose.
• Accurate quantification of cellulase activity is essential for various biotechnological applications.

Purpose of the Study:

• To develop a simplified and quantitative method for estimating cellulase activity.
• To demonstrate the utility of this method in the presence of common inhibitors.

Main Methods:

• Utilizing the linear relationship between cellulose-agar clarification extent and the logarithm of cellulase activity.
• Employing "complete" cellulase for consistent substrate degradation.

Main Results:

• The extent of agar clarification directly correlates with the logarithm of enzyme activity.
• This method allows for direct, quantitative estimation without serial dilutions.
• Cellulase activity could be accurately determined despite the presence of cellobiose inhibitors.

Conclusions:

• The described method offers a convenient and quantitative approach for cellulase activity assessment.
• This technique is robust and effective even in the presence of inhibitory substances.
• Simplifies enzyme characterization in microbial culture filtrates.