. 2009 Jun 15;14(6):2167–2180. doi: 10.3390/molecules14062167

Table 4.

Effects of extracting solvent/technique on reducing power (expressed as absorbance values at 700 nm) of different medicinal plant materials.

Medicinal plant organs	Extraction by shaker
Medicinal plant organs	Absolute methanol	Aqueous (80%) methanol	Absolute ethanol	Aqueous (80%) ethanol
Moringa oleifera leaves	2.45 ± 0.05_a^b	2.88 ± 0.03_a^a	1.53 ± 0.04_a^c	2.50 ± 0.06_a^b
Moringa oleifera root	0.09 ± 0.01_e^b	0.14 ± 0.02_c^a	0.09 ± 0.01_c^b	0.12 ± 0.02_d^a
Eugenia jambolana bark	1.06 ± 0.04_d^c	1.48 ± 0.04_b^b	0.98 ± 0.02_b^c	1.60 ± 0.03_bc^a
Acacia nilotica bark	1.68 ± 0.05_c^ab	1.52 ± 0.04_b^ab	1.45 ± 0.06_a^b	1.87 ± 0.05_b^a
Azadirachta indica bark	1.55 ± 0.03_c^b	1.46 ± 0.05_b^b	1.05 ± 0.05_b^c	1.71 ± 0.03_b^a
Terminalia arjuna bark	1.26 ± 0.02_cd^ab	1.66 ± 0.04_b^a	1.12 ± 0.02_b^b	1.34 ±0.04_bc^ab
Ficus religiosa Fruit	1.06 ± 0.04_d^b	1.36 ± 0.07_b^a	0.92 ± 0.06_b^b	0.99 ± 0.07_cd^b
Aloe barbadensis leaves	2.01 ± 0.03_b^b	2.81 ± 0.05_a^a	1.56 ± 0.04_a^c	2.16 ± 0.04_a^b
	Extraction by reflux
Moringa oleifera leaves	1.25 ± 0.05_b^b	1.78 ± 0.03_b^a	0.94 ± 0.04_bc^c	0.95 ± 0.04_c^c
Moringa oleifera root	0.06 ± 0.01_d^b	0.13 ± 0.02_d^a	0.09 ± 0.03_d^b	0.11 ± 0.02_d^a
Eugenia jambolana bark	0.80 ± 0.04_c^b	1.26 ± 0.05_cd^a	0.61 ± 0.05_c^b	1.39 ± 0.07_bc^a
Acacia nilotica bark	1.25 ± 0.06_b^ab	1.13 ± 0.04_d^b	1.05 ± 0.07_bc^b	1.62 ± 0.05_b^a
Azadirachta indica bark	1.16 ± 0.03_b^b	1.10 ± 0.07_d^b	0.79 ± 0.02_c^b	1.56 ± 0.06_b^a
Terminalia arjuna bark	1.11 ± 0.05_b^b	1.46 ± 0.02_c^a	0.62 ± 0.03_c^c	0.99 ± 0.03_c^b
Ficus religiosa Fruit	1.13 ± 0.02_b^b	1.22 ± 0.05_cd^a	1.26 ± 0.06_b^a	1.32 ± 0.02_bc^a
Aloe barbadensis leaves	2.18 ± 0.04_a^b	2.96 ± 0.08_a^a	1.72 ± 0.04_a^c	1.88 ± 0.04_a^c

Values (mean ± SD) are average of three samples of each medicinal plant material, analyzed individually in triplicate (n = 1x3 x 3), (P < 0.05); DW= dry weight; Superscript letters within the same row indicate significant (P< 0.05) differences of means within the extracting solvent; Subscript letters within the same column indicate significant (P< 0.05) differences of means within the plant materials.