. 2019 Jun 5;24(11):2133. doi: 10.3390/molecules24112133

Table 7.

The antiradical activity of extracts of different parts of walnut fruit against various ROS, RNS, and other radicals.

No	Free Radicals		Plant Part	Unit	Content	References
1	ROS	H₂O₂	Kernel	Scavenging (%) ^b	239.80 ± 2.00	[182]
		H₂O₂	Husk	Scavenging (%) ^b	236.86 ± 3.40	[182]
		O₂^•–	Kernel	Scavenging (%) ^c	63.89 ± 0.100	[67]
			Kernel	Scavenging (%) ^b	98.48 ± 4.2	[182]
			Skin	Scavenging (%) ^c	128.48 ± 2.12	[67]
			Shell	Scavenging (%) ^c	108.12 ± 2.04	[67]
			Shell	EC₅₀ (µg/mL) ^a	173.41 ± 3.56	[140]
			Husk	Scavenging (%) ^c	244.76 ± 1.52	[67]
			Husk	Scavenging (%) ^b	98.48 ± 7.20	[182]
		HO^•	Shell	EC₅₀ (µg/mL) ^a	97.32 ± 3.29	[140]
2	RNS	^•NO	Kernel	Scavenging (%) ^c	9.87 ± 1.82	[67]
			Kernel	Scavenging (%) ^b	54.68±1.56	[182]
			Skin	Scavenging (%) ^c	68.50 ± 1.97	[67]
			Shell	Scavenging (%) ^c	70.26 ± 2.19	[67]
			Husk	IC₅₀ (μg/mL) ^a	141 ± 0.4	[71]
				Scavenging (%) ^c	69.18 ± 1.57	[67]
				Scavenging (%) ^b	60.45	[103]
				Scavenging (%) ^b	31.35 ± 1.70	[182]
3	Other radicals	DPPH^•	Kernel	ppm BHTEs	92.6 ± 39.5	[154]
				EC₅₀ (mg/mL)	0.15	[69]
				EC₅₀ (g/DM/g DPPH)	4.05 ± 0.21	[207]
				EC₅₀ (mg/mL extract)	0.143 ± 0.020	[131]
				µmol TEs/g FW	120 ± 10	[176]
				Scavenging (%) ^c	1.2 ± 0.10	[67]
				µmol TEs/g sample	191 ± 4.2	[178]
				mmol TEs/100 g sample	25.7 ± 2.1	[200]
				mmol TEs/100 g DW	20.42 ± 3.84	[66]
				Scavenging (%) ^b	40 ± 1	[181]
				EC₅₀ (mg/mL)	0.19 ± 0.02	[139]
				Scavenging (%) ^b	27.48 ± 1.01	[182]
			Skin	ppm BHTEs	286 ± 2.72	[154]
				Scavenging (%) ^c	73.33 ± 1.18	[67]
				Scavenging (%) ^b	92.8 ± 0.4	[159]
				mmol TEs/100 g DW	303.01 ± 59.15	[66]
			Shell	Scavenging (%) ^c	7.19 ± 0.11	[67]
				EC₅₀ (µg/mL) ^a	81.03 ± 2.31	[140]
				IC₅₀ (μg/mL) ^a	10.3 ± 0.8	[56]
			Husk	EC₅₀ (mg/mL)	0.35	[73]
				EC₅₀ (mg/mL extract)	0.412 ± 0.025	[131]
				IC₅₀ (μg/mL) ^a	122 ± 4.5	[71]
				Scavenging (%) ^c	12.83 ± 0.08	[67]
				EC₅₀ (mg/mL)	0.33 ± 0.02	[103]
				IC₅₀ (μg/mL) ^a	33.98	[161]
				IC₅₀ (μg/mL) ^a	54.9	[18]
				IC₅₀ (μg/mL) ^a	114 ± 1.4	[56]
				SC₅₀ (μg/mL)	85 ± 1.6	[102]
				Scavenging (%) ^b	89.81 ± 1.21	[182]
		ABTS^•+	Kernel	µmol TEs/100 g DW	7713 ± 176	[28]
				mmol TEs/100 g DW ^a	0.2	[156]
				mmol TEs/100 g sample	21.4 ± 2	[200]
			Husk	IC₅₀ (μg/mL) ^a	324.8	[18]
			Husk	⁶µmol TEs/g extract	1251 ± 16	[203]

^a indicating the lowest reported value; ^b indicating the highest reported value; ^c indicating the mean of reported values. Abbreviations: EC₅₀: effective concentration of 50%; IC₅₀: inhibitory concentration of 50%; BHTEs: butyl hydroxytoluene equivalents; DM: dry matter; FW: fresh weight; TEs: Trolox equivalents; DW: dry weight; SC₅₀: scavenging capacity of 50%.