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Historical and General Introduction
Components of Food as Substrates for Digestive Enzymes
The Anatomy of Animal Digestive Systems
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Academic Press action activity adult amino acid amylase amylopectin animals assay attack authors bacteria bile Biochem Biol bonds bovine caeca cavital cells cellulose Chem chitinase chromatography chymotrypsin Comp compared concentration confirmed considerably considered contain contents demonstrated digestion endopeptidase enzymes esterase esters et al examined experiments extracts fatty acids feeding fishes fluid further gastric given gland glucose groups higher homogenates hydrolysed increased indicate inhibited insects intestinal invertebrates isolated juice larvae latter less levels lipase lipid London mammals marine material method midgut midgut gland mucosa nature obtained occur optimum organisms origin pancreatic pepsin peptide Physiol plant possess present produced protein proteinases range reduced region residues respectively secretion separated showed similar species split starch stomach studies substrates suggest Table teleosts tissue trypsin values vertebrates weight York zymogen