The major enzymes of chemical digestion are:
Enzyme
|
Substrate
|
End product
|
1. Salivary amylase (Ptyalin)
|
Starch
|
Maltose
|
2. Pepsin, Rennin
|
Proteins
|
Peptide clots (insoluble casein)
|
3. Trypsin
|
Proteins and Peptides
|
Amino acids
|
4. Lipase
|
Starch fats
|
Maltose
|
5. Enterokinase
|
Inactive trypsinogen
|
Active trypsin
|
6. Maltase
|
Maltose
|
Monosaccharide
|
7. Sucrase
|
Sucrose
|
Monosaccharide
|
8. Lactase
|
Lactose
|
Monosaccharide
|
9. Aminopeptidase
|
Peptides
|
Amino acids
|
10. Phosphatases
|
Nucleotides
|
Nucleosides
|
11. Intestinal lipase
|
Spilts fats
|
Fatty acids, glycerol
|