2.2. Methods
2.2.1. Grain physical characteristics
The length, width and thickness of the paddy, brown rice and milled rice samples were measured on 100 randomly selected grains using digital micrometer (InTech Electronics, VIC, Australia) at ±0.01 mm accuracy.
2.2.2. Amylose content
Amylose content was determined using the method described in AACC International Method number 61.03.01 (AACC International, 2011).