Ptyalin used in a sentence

Ptyalin in a sentence as a noun

Salivary amylase is ptyalin, coded by the AMY1 gene.

Someone with 4 copies of AMY1 can still digest starch, but someone with 16 copies of AMY1 might have most of their eaten starches reduced to oligosaccharides long before their ptyalin is inactivated in the stomach.