The Vietnamese JFSS had a high amylose content and fairly low
amylopectin average chain length. Due to its unique molecular
structure, the gelatinized JFSS formed a highly soft and elastic gel.
The JFSS showed two separate DSC endotherms of similar enthalpies.
The partial gelatinization of the JFSS at 70
C completely
removed the first endotherm while maintaining relatively high
crystallinity and granular integrity. The partially-gelatinized JFSS
showed only a slight change in pasting profile compared to that of
the native JFSS. Additionally, the partially-gelatinized JFSS was
successfully used to enzymatically produce genistinecycloamylose
(CA) complex. Water sorption isotherms of the partially gelatinized
JFSS showed higher water-holding capacity than that of the native
starch. Unique physicochemical properties of the Vietnamese JFSS
and the temperature-controlled partial gelatinization of the JFSS
could benefit various industries searching for new starch materials.