Fig. 5

The ratio of prolamin to total protein in rice. (A) The average ratio of prolamin to total protein (P/TP) in white rice grains with a 90% rice-polishing ratio from seven rice varieties is shown (n = 28). (B) The average ratio of P/TP in the fractionated rice powders of different rice varieties is shown (n = 35). The ratio of P/TP of rice-polishing ratios of 90–70% (C), 70–50% (D), 50–30% (E), and 30–0% (F) (n = 5, as crop year). Data containing different capital and small letters indicate significance by Tukey–Kramer HSD test at p < 0.01 and p < 0.05, respectively. Nonsignificance between groups is indicated as “n.s.” The p-value by ANOVA is shown in the inset