Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Scanning electron microscopy micrographs of rice grain before (A-D) and after (a-d) sonication. (A, C) Brown rice; (B, D) milled rice. Sonication conditions: (a) 40 kHz, 150 W, 30 mins, 30 °C [84]; (b) 40 kHz, 300 W, 10 mins, 4 °C [53]; (c) 16 kHz, 2 kW, 30 mins, 55 °C [50]; (d) 53 kHz, 5 mins, 55 °C [52]. Reprinted with permission.
