The gelatinization properties of OD, ED and FD chestnut starches
are summarized in Table 3. The ED starch had higher gelatinization
temperatures (To, Tp, and Tc) and gelatinization enthalpy (DH) than
the OD and FD starches. Freeze drying significantly decreased both
gelatinization temperatures and DH of all four chestnut starches,
indicating that crystalline structure or double helix of starch
granules was disrupted by freeze-drying, consistent with the XRD
and FTIR results. Similar result was also observed with B-type po-
tato starch after freeze-drying