Enzyme activity is one of the most significant characteristics to describe active enzymes in biochemical reaction. Determining the appearance of product or the disappearance of substrate is the primary approach to enzyme activity measurement. Creative BioMart is recognized as the leader in enzymology by clients all over the world. We are glad to help with enzyme activity assay which you find challenging. Enzyme Activity Test https://www.creativebiomart.net/assay-kit/enzyme-activity-test.html