. 2015 Nov 23;6:274. doi: 10.3389/fphar.2015.00274

Table 2.

Functional phenolic acid contents in extracts of Achyranthes aspera Linn. collected from two different geographical locations (Ukulinga, South Africa and Ciaat, Eretria).

	Phenolic composition (μg/g DW)
	Plant origin
	Ukulinga, South Africa	Ciaat, Eretria
Gallic acid	1.24 ± 0.13^a	1.08 ± 0.03^a
Vanillic acid	3.97 ± 0.38^a	5.69 ± 0.11^b
Isoferulic acid	2.59 ± 0.06^a	2.64 ± 0.08^a
Protocatechuic acid	8.53 ± 0.24^b	4.77 ± 0.17^a
Syringic acid	2.24 ± 0.21^a	4.74 ± 0.22^b
Rutin	Not detected	1.92 ± 0.37
Salicylic acid	8.03 ± 0.19^a	16.00 ± 1.87^b
Gentisic acid	5.30 ± 0.28^a	9.50 ± 1.06^b
p-Coumaric acid	0.60 ± 0.10^a	1.29 ± 0.05^b
Trans-cinnamic acid	1.83 ± 0.34^a	2.99 ± 0.42^b
p-Hydroxybenzoic acid	9.34 ± 0.18^b	7.76 ± 0.06^a
Taxifolin	0.22 ± 0.03	Not detected
Chlorogenic acid	Not detected	0.68 ± 0.07
Sinapic acid	0.37 ± 0.01^a	1.20 ± 0.06^b
Genistein	Not detected	0.82 ± 0.14
Caffeic acid	23.76 ± 0.74^b	8.18 ± 0.64^a
Ferulic acid	7.76 ± 0.23^a	8.22 ± 0.28^a

Different letters across each row indicate significant differences (P ≤ 0.05) between the levels of the phenolic acid in the extracts from the two sources as separated by the Student t-test (n = 3).