Fuente: WIPO "biotechnology" Methods are disclosed for detecting and measuring polysaccharide-hydrolyzing enzyme activity or concentration by partial hydrolysis using a pre-determined, yet short, incubation time and a pre-determined temperature. The resulting reaction mixture has unique chemical (i.e., reaction products) and physical (i.e., viscosity) properties that can be used to detect or measure the polysaccharide-hydrolyzing enzyme activity or concentration.