1. Amylase:
* Breaks down carbohydrates: Amylase is the primary enzyme in saliva. It specifically targets starch, a complex carbohydrate, and breaks it down into simpler sugars like maltose. This initial breakdown of starch makes it easier for other digestive enzymes to further process it later in the digestive tract.
* Facilitates taste: Amylase also helps release sugars from food, contributing to the sweet taste we perceive.
2. Lingual Lipase:
* Starts fat digestion: While less active than gastric lipase, lingual lipase begins the digestion of fats in the mouth. It's especially important for infants who lack significant amounts of gastric lipase.
Other Salivary Components and their Roles:
* Mucin: A protein that forms mucus, which lubricates food, making it easier to swallow.
* Bicarbonate: Neutralizes acids in food, creating a more favorable environment for enzymes to work.
* Lysozyme: An antibacterial enzyme that helps protect against infection.
Overall, salivary enzymes initiate digestion, making it more efficient and enhancing taste perception. They also contribute to oral hygiene by preventing bacterial growth.
