what is role of saliva in digestion of food

Saliva plays an important role in the digestion of food in the mouth. It is secreted by the salivary glands and helps make food easier to chew and swallow.

Functions of saliva in digestion

• Moistens food:
  Saliva softens and lubricates food, making it easier to chew and swallow.

• Starts digestion of starch:
  Saliva contains an enzyme called salivary amylase or ptyalin, which breaks down starch into simpler sugars.

• Helps in tasting food:
  It dissolves food particles so that taste buds can detect different tastes.

• Keeps the mouth clean:
  Saliva helps wash away food particles and reduces bacterial growth in the mouth.

Importance

Digestion begins in the mouth because saliva starts the chemical breakdown of carbohydrates before food reaches the stomach. Proper saliva production is essential for healthy digestion and oral health.