Abstract
Many papers have been published concerning ratio of reactivities of amylase isozymes (P- and S-amylase) to the substrates: oligosaccharide. P-Amy% is the ratio of pancreatic isoamylase to total amylase activity determined by the use of either antibody to isoamylase or amylase inhibitor from wheat germ. We elaborate the method with which P-Amy% is shown in third dimensional way on the conventional scattered diagram, when we make a comparison of two amylase tests that used different substrates. P-Amy% is figured in the open circle with diameter proportional to its value. This third-dimentional scattered diagram shows the ratio of reactivities of isoamylases to the substrates in the tests.
