Table 1.

DPPH and ABTS radical scavenging capacities of 80 % ethanolic extract of jacquemont’s hazelnut kernel and its byproducts

Inhibition (%)
Conc. (μg/ml)	DPPH assay				ABTS assay
	Hazelnut skin	Hazelnut hard shell	Hazelnut kernel	AAa	Hazelnut skin	Hazelnut hard shell	Hazelnut kernel	AAa
20.0	40.06 ± 3.9	22.16 ± 1.9	7.50 ± 0.7	55.82 ± 1.4	22.22 ± 1.8	11.8 ± 0.7	7.18 ± 0.8	42.01 ± 1.5
40.0	77.87 ± 2.1	36.66 ± 3.7	17.76 ± 2.6	83.75 ± 1.4	40.06 ± 3.9	29.61 ± 1.4	15.71 ± 1.7	58.19 ± 0.8
60.0	92.95 ± 0.7	56.65 ± 3.4	24.79 ± 0.4	95.76 ± 1.5	73.32 ± 0.8	47.37 ± 2.1	19.23 ± 0.8	78.37 ± 1.1
80.0	97.12 ± 0.9	79.10 ± 1.6	30.73 ± 1.6	97.17 ± 0.9	86.37 ± 1.1	64.09 ± 1.3	23.14 ± 2.1	95.74 ± 0.9
100	97.78 ± 0.5	92.57 ± 0.6	35.79 ± 0.5	99.45 ± 0.3	96.52 ± 1.1	82.94 ± 1.2	31.52 ± 1.3	98.51 ± 1.5
IC50	23.12 ± 1.4	51.32 ± 1.2	136.46. ± 0.9	11.18 ± 0.5.	45.73 ± 1.2	63.65 ± 0.5	169.30 ± 0.5	27.08 ± 0.3

^aAscorbic acid