2.5. Thermal properties
The gelatinization characteristics of the white rice were determined
using differential scanning calorimetry (TA-60WS, Shimadzu,
Kyoto, Japan). Ground samples (approximately 3.5 mg, d.b.)
were weighed directly in an aluminum pan (Mettler, ME-27331),
and distilled water was added to obtain a suspension of 70% water.
The pan was hermetically sealed and allowed to equilibrate for
1 h before analysis. An empty pan was used as a reference. The
sample pans were then heated from 10 to 140 C at a rate of
10 C min1. The temperature at the onset of gelatinization (To), the
temperature at the peak (Tp), the temperature at the conclusion (Tc)
and the gelatinization enthalpy (DH) were determined