. 2020 Jan 20;9(1):87. doi: 10.3390/antiox9010087

Table 3.

Antioxidant activity of the inner and outer shells, bur, and leaves of chestnut (mean value ± SD, n = 3).

Chestnut Component	ABTS ^a	DPPH ^b
Inner shell	3533 ± 1 ^b	0.06 ± 0.01 ^c
Outer shell	203 ± 2 ^d	0.12 ± 0.02 ^a
Bur	801 ± 5 ^c	0.09 ± 0.01 ^b
Leaves	5861 ± 5 ^a	0.03 ± 0.01 ^d

^a expressed in μmol Trolox/g of residue; ^b expressed in effective concentration at which 50% of DPPH radicals are scavenged (EC50, extract concentration (mg/mL); Trolox was used as a positive control, with Trolox EC50 = 0.04 ± 0.01 mg/mL). Different letters indicate significant differences (p < 0.05).