Organic components in saliva

• Nearly all of the organic components in saliva are glycoproteins.
• Among the glycoproteins secreted by mucous glands, mucins; of which there are two main types, MG1 and MG2; are the most important.
• Their carbohydrate content is as high as 40%, and their molecular weight is over 1 000 kDa (MG1).
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