Fig. 4.
(A–F) Effects of curing treatment on potato phenolic metabolism during the curing and after cutting. (A) Total phenolic content during curing, (B) total phenolic content after cutting, (C) PAL activity during curing, (D) PAL activity after cutting, (E) PPO activity during curing, (F) PPO activity on 0, 3, 6, 9, 12 d after cutting from the curing and control potato, respectively. Data are averages of three replications ± standard deviation. Test of the significance of difference is shown in the figure, “a” vs “a” meaning there is no significant difference (P > 0.05); “a” vs “b” meaning there is significant difference (P ⩽ 0.05).