. 2020 May 28;58(1):255–266. doi: 10.1007/s13197-020-04538-8

Table 1.

IC₅₀ (µg/mL) values of DPPH, ABTS, superoxide anion radical (SO) scavenging activities and EC₅₀ (µg/mL) values of ferric reduction antioxidant power of the different solvent extract of non-distilled and distilled by-product of Java citronella

	Java citronella
	DPPH		ABTS		FRAP		SO
	Non-distilled	Distilled	Non-distilled	Distilled	Non-distilled	Distilled	Non-distilled	Distilled
Pet ether	319.8 ± 2.3 ^lx	705.6 ± 10.41^ky	516.2 ± 4.4^jx	> 1000	694.1 ± 6.0^kx	776 ± 7.8^ky	> 1000	> 1000
Chloroform	386.5 ± 3.1^mx	865.2 ± 15.48^ly	760.9 ± 5.2 ^lx	> 1000	840.3 ± 17.9 ^lx	951.7 ± 21.8^ly	> 1000	> 1000
Ethyl acetate	168.5 ± 2.6^fx	316.5 ± 7.59^dy	267.4 ± 12.9^ex	421.5 ± 2.3^dy	348 ± 6.1^ex	366.3 ± 8.6^ey	870.7 ± 5.5^hx	> 1000
Acetone	218.1 ± 1.7^hx	416.1 ± 7.15^gy	328.9 ± 3.3^gx	791.6 ± 9.5^jy	457. 7 ± 4.2^hx	474 ± 7.5^hy	504 ± 6.6^ex	833.7 ± 29.5^gy
Ethanol	133.5 ± 1.9^dx	363.2 ± 3.64^ey	201.6 ± 2.2^cx	421.9 ± 1.8^dy	290 ± 4.6^dx	400.3 ± 11.0^fy	403 ± 4.6^dx	605.7 ± 10.2^dy
Methanol	87.3 ± 2.3^bx	196 ± 2.31^cy	112.6 ± 3.1^bx	238.9 ± 4.5^ay	189.8 ± 7.1^bx	214.7 ± 5.1^cy	322.7 ± 9.6^bx	662.3 ± 8.5^ey
Water	303 ± 2.3^kx	642.7 ± 11.55^jy	569.8 ± 9.9^kx	783.5 ± 5.1^iy	658. 7 ± 2.5^jx	708 ± 17.3^jy	> 1000	> 1000
75% Aq acetone	178.5 ± 2.1^gx	454.1 ± 7.30^hy	261.2 ± 1.8^ex	698.2 ± 3.7^hy	389.3 ± 11.7^fx	478 ± 11.0^hy	649 ± 29.5^fx	789.3 ± 21.5^fy
50% Aq acetone	294.4 ± 2.9^jx	484.9 ± 3.97^iy	361.2 ± 9.9^hx	589.3 ± 1.7^fy	511.3 ± 11.2^ix	545.7 ± 13.9^iy	724 ± 8.9^gx	> 1000
75% Aq ethanol	122.6 ± 1.1^cx	315.2 ± 5.29^dy	221.2 ± 3.5^dx	456.8 ± 3.5^ey	226.3 ± 4.9^cx	331.3 ± 9.5^dy	351.7 ± 11.6^cx	452.3 ± 8.5^by
50% Aq ethanol	158.3 ± 1.3^ex	399.8 ± 4.51^fy	289.6 ± 3.9^fx	687.5 ± 2.1^gy	296 ± 8.2^dx	420 ± 6.1^gy	388.7 ± 1.5^dx	525.3 ± 23.1^cy
75% Aq methanol	64.2 ± 0.3^ax	144.1 ± 1.82^ay	91.8 ± 0.6^ax	261.3 ± 3.4^cy	117. 7 ± 5.1^ax	151 ± 3.6^ay	285.3 ± 6.7^ax	361.3 ± 12.7^ay
50% Aq methanol	68.1 ± 1.0^ax	168.5 ± 1.04^by	111.2 ± 2.6^bx	253.8 ± 1.6^by	128 ± 6.6^ax	177.7 ± 8.1^by	307.7 ± 3.5^bx	444 ± 37.0^by
De-odorized water	226.21 ± 1.4ⁱ		456.9 ± 5.1^ix		419 ± 13.5^gx		518.7 ± 6.8^ex

For each solvent, values in the same column, followed by a different letter (a, b, c, d, e and f etc.) are significantly different (p < 0.05); For each solvent, values between the non-distilled and distilled plant extract, followed by a different letter (x, y) are significantly different (p < 0.05)