1. Salivary Amylase (Ptyalin)
* Substrate: Starch (a complex carbohydrate)
* Product: Maltose (a disaccharide)
2. Lingual Lipase
* Substrate: Triglycerides (fats)
* Product: Diglycerides and free fatty acids
3. Lysozyme
* Substrate: Peptidoglycan (a component of bacterial cell walls)
* Product: Breaks down the peptidoglycan, weakening the bacterial cell wall and contributing to antibacterial activity
4. Other Enzymes (in smaller amounts)
* Ribonuclease: Breaks down RNA
* Deoxyribonuclease: Breaks down DNA
Key Points to Remember:
* Salivary amylase is the most abundant enzyme in saliva. It begins the digestion of starch in the mouth.
* Lingual lipase primarily acts in the stomach, but it's secreted in saliva and begins the digestion of fats.
* Lysozyme contributes to oral hygiene by breaking down bacterial cell walls.
* Ribonuclease and deoxyribonuclease play a less prominent role in digestion but may have other functions in the oral cavity.
Let me know if you have any more questions about saliva and its enzymes!
