What is saliva? What is its composition? What function does it perform?

Saliva is 98-99% water. It contains digestive enzymes, in particular amylase, which break down complex carbohydrates to simple carbohydrates, in particular, starch is broken down to glucose. Therefore, the digestion of carbohydrates begins already in the mouth. An important condition for the effective work of saliva enzymes is its slightly alkaline reaction. The formation of a food lump and its covering with mucus is provided by mucin. Saliva also contains lysozyme. It is a bactericidal substance that partially disinfects food by destroying bacteria that enter the oral cavity.

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