Peak viscosity of DM rice flour (243.55 RVU) was found to be the highest and followed by PGB
rice flour (205.46 RVU), wheat flour (164.71 RVU), and HMT rice flour (130.09 RVU). Breakdown values of
all flours as in the following order, DM rice flour (174.00 RVU) > PGB rice flour (138.75 RVU) > wheat flour
(128.84 RVU) > HMT rice flour (107.38 RVU). It was shown that the final viscosity of DM rice flour (288.42 RVU)
is higher than PGB rice flour (271.21 RVU), HMT rice flour (199.38 RVU), and wheat flour (197.71 RVU).
Set back was calculated and appeared as in the following order, PGB rice flour (132.46 RVU) > DM rice
flour (114.42 RVU) > HMT rice flour (92.00 RVU) > wheat flour (68.88 RVU). As the results, the pasting
properties of modified rice flours were shown dependent on process or modification methods such as dry
milling, pre-germination, and heat- moisture treatment. In case of HMT rice flour, it exhibited a significantly
low breakdown which was clearly attributed to the starch granule in the rice flour was more durable to
heating and shearing. For PGB rice flour, during germination amylolytic enzymes activate to break down
Flour types Swelling power (g/g) Solubility (%)
Wheat 13.48b ±0.36 8.77a ±0.96
Rice
1 ) DM 14.54a ±0.20 2.80d ±1.49
2) PGB 13.56b ±0.14 5.08c ±0.19
3) HMT 12.38c ±0.14 7.12b ±0.33
6
starch producing more sugars and oligosaccharides, resulting in loss of viscosity