. 2016 Jul 13;11(7):e0158942. doi: 10.1371/journal.pone.0158942

Table 2. TPC of extracts of S. ferruginea leaves, stems, and flowers using different solvents expressed in mg gallic acid/g extract.

Total phenolic content
	Solvents
Plant part	Water	Methanol	Ethyl acetate	Hexane
Stem	206.24 ± 8.66^a	273.51 ± 4.84^b	35.86 ± 6.88^c	10.60 ± 2.43^d
Leaf	117.54 ± 2.41^e	163.29 ± 6.79^f	29.51 ± 4.45^c	14.24 ± 3.17^d*
Flower	93.61 ± 6.30^g	123.05 ± 7.82^h	18.87 ± 3.21ⁱ	4.34 ± 1.72^d*

Results are means ± SD of triplicate from 3 independent experiments. Values with the same superscripts in different groups imply statistical non-significance P > 0.05. Same superscripts with asterisk imply statistical significance P < 0.05.