The lightness (L), redness (þa) and yellowness (þb) of rice flours with different particle sizes differed significantly (p < 0.05). In particular, yellowness was reduced as the particle size
decreased, but lightness showed a reverse trend. As the particle size was the smaller, the lightness was the higher and the yellowness was the lower. The reduction in yellowness with the decreasing particle size might be correlated with a decrease in protein con- tents. Lightness showed higher value in increasing peak of fractions containing small sized starch granules in rice flour compared to peak of fractions containing large-sized starch granules.