Paddy rice grains were heat-moisture treated with 13 g/100 g
moisture, as arrived (item 2.1). A sample of 280 g of rice grains was
placed in sealed glass tubes and autoclaved at 120 C at 1 kPa
pressure for 10, 30 and 60 min (HMT 10 min, HMT 30 min and HMT
60 min, respectively). The samples were cooled for 4e5 h and then
the grains were stored in a room at 20 C for one week for subsequent starch extraction.
The HMT of rice starches was performed on samples at 13 g/
100 g moisture level and equilibrated at 4 C for 24 h. HMT starches
were then placed in sealed glass tubes, autoclaved at 120 C for 10,
30 and 60 min (Hormdok & Noomhorm, 2007). After HMT the
starches were removed from glass tubes and dried at 40 C until
reaching 10 g/100 g moisture, and ground.