Different-frequency ultrasonic effects on properties and structure of corn starch.

BACKGROUND Ultrasound is widely used to accelerate many reactions and unit operations, but few studies have reported its effects on starch properties and structure. RESULTS Corn starch suspended in ethanol solution was treated by dual-frequency ultrasound (DFU) and single-frequency ultrasound (SFU). Results showed that the transparency of the starch… (More)