α-Amylase isolated from porcine pancreas is a glycoprotein.2 It is a single polypeptide chain of approximately 475 residues containing 2 SH groups and four disulfide bridges and a tightly bound Ca2+ necessary for stability.3,4 Chloride ions are necessary for activity and stability5 The pH range for activity is 5.5 to 8.0, with the pH optimum at 7.6