Activities of Commercial Multiple Digestive Enzyme Preparations

Seven multiple digestive enzyme preparations in capsule on the market (AC, SE, SV, ST, TE, BZ and PT) were compared with each other in their digestive enzyme activities. Amylase, protease, lipase and cellulase activities were measured in vitro at pH 5.0, 3.0 and 7.0, 7.0 and 4.0, respectively. Six of them were preparations consisting of the gastricsoluble part and the enteric-soluble one, and one preparation (SV) contained gastric-soluble powder only. PT provided strong activities of all of the above four kinds of enzymes, and AC showed the excellent amylase activity and strong lipase activity. BZ had relatively strong activities of the four enzymes except protease activity at pH 3.0. There were some products that showed comparatively low activities in general.