Gelatinization and retrogradation characteristics of
untreated and the selected heat-treated rice starches as
measured by DSC are presented in Fig. 1. A main
endotherm accompanying gelatinization of the untreated
starch (UR) exhibited To of 67.67 1C, Tp of 73.49 1C and Tc
of 78.75 1C. Range of gelatinization temperature was
11.28 1C and enthalpy of gelatinization was 13.21 J/g.
Another small peak observed at 90–100 1C represented
the melting of amylose–lipid complexes which is already
present in the starch.