The Collaborative International Dictionary of English v.0.48:

amylolysis \am`y*lol"y*sis\ ([a^]m`[i^]*l[o^]l"[i^]*s[i^]s), n.
   [Amylum + Gr. ly`sis a loosing.] (Chem.)
   The conversion of starch into soluble products, as dextrins
   and sugar, esp. by the action of enzymes. --
   Am`y*lo*lyt"ic, a.
   [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

amylolysis
    n 1: conversion of starch to sugar