Pasting properties of rice flour samples were determined by a Rapid Visco-Analyzer (model
RVA 4D, Newport Scientific Pty, Ltd., 1995). Sample ( 3 g) were suspended in 25 g. of distill water and
mixed . The flour suspension was equilibrated at 35๐C for 1 min. The RVA temperature program was
as follows : maintaining at 50 ๐C for one minutes for equilibration, heated to 95 ๐C with a heating
rate increase of 12 ๐C/min and then maintained at 95 ๐C for 2.5 min, cooled at 50 ๐C at 12 ๐C/min
and finally maintained at 50 ๐C for 2 min (Standard program No1). The recorded values included
pasting temperature (๐C), peak viscosity (the maximum viscosity, RVU), final viscosity (RVU),
breakdown (RVU) and setback from trough (RVU).