Fig. 2

Crude protein content of polished rice. The average crude protein contents in fractionated rice powders of different rice varieties (n = 5, as crop year) are shown. The crude protein content of each rice variety is indicated as dry matter. (A) Crude protein contents of polished rice with rice-polishing ratio of 90–70% (closed bars), 70–50% (dark gray bars), 50–30% (light gray bars), and 30–0% (opened bars). Crude protein contents of the ratios of 90–70% (B), 70–50% (C), 50–30% (D), and 30–0% (E). Data containing different capital and small letters indicate significance by Tukey–Kramer HSD test at p < 0.01 and p < 0.05, respectively