The present study has provided some insights into the effects of
drying methods used in starch isolation on properties of C-type
chestnut starches. Freeze drying disrupted the long- and shortrange
molecular order of double helices in chestnut starches, by
which swelling power and gelatinization temperatures of starches
were decreased and in vitro enzymatic digestibility was increased.
In contrast, ethanol and oven drying are two mild drying methods,
which had less effect on the structural and functional properties of
chestnut starches. Freeze-drying is not a preferred method used for
the isolation of native starch granules in terms of disruption of
starch structure and energy saving.