The ethanol precipitated starch was recovered by filtration using a qualitative filter paper (NewStar No.
102; Special Paper Industry, Hangzhou, China). The modified starchwas
dried in a convection oven at 35 °C for 24 h, and then pulverized and
passed through a 200-mesh sieve. Normal rice starch incubated at the
same condition without TfMA treating was used as a control