(a)
(b)
(c)
Figure 5: Effects of H2S on the contents of malondialdehyde (MDA) (a), hydrogen peroxide (H2O2) (b), and superoxide anion () (c) production rate in grape pulp. Grape clusters were fumigated with 1.0 mM H2S donor NaHS aqueous solution with water as the control groups for 0–7 d. Data are presented as means ± SD (). FW = fresh weight.