Ptyalin

Ptyalin is an  alpha-amylase  produced by  the salivary glands.

Source
ŠVÍGLEROVA, Jitka. Ptyalin [online]. Last revision 2/18/2009, [cit. 11/12/2010].  <  https://web.archive.org/web/20160306065550/http://wiki.lfp-studium.cz/index.php/Ptyalin