The Circumscribe-β-1,4-glucanase (C1) Activity Assay Kit is primarily used to measure the enzymatic activity of β-1,4-glucanase, which plays a critical role in breaking down cellulose into smaller polysaccharides or glucose units. This kit is widely applied in biofuel production, where the enzyme aids in the conversion of plant biomass into fermentable sugars for ethanol production. It is also utilized in the textile and paper industries to modify cellulose fibers, enhancing the efficiency of processes like biopolishing and pulp treatment. In agricultural research, the kit helps evaluate the enzyme's role in plant cell wall degradation, aiding in the study of plant-pathogen interactions and crop improvement. Additionally, it is employed in food processing to assess enzyme activity in applications such as juice clarification and improving the digestibility of animal feed. The kit provides a reliable and efficient method for quantifying enzyme activity, making it a valuable tool in both industrial and research settings.