Table 2. HPLC identification of polyphenolic compounds in the methanol extract from S. arboricola L.

No.	Compound	R t	Conc. (µg/g)
1	Gallic acid	3.570	1,531.69
2	Chlorogenic acid	4.326	620.14
3	Catechin	4.516	39.76
4	Methyl gallate	5.632	438.62
5	Caffeic acid	5.941	2,071.95
6	Syringic acid	6.454	268.21
7	Pyro catechol	6.803	27.34
8	Rutin	7.002	220.39
9	Ellagic acid	7.408	395.67
10	Coumaric acid	8.711	114.63
11	Vanillin	9.338	215.64
12	Ferulic acid	9.989	156.78
13	Naringenin	10.448	1,946.32
14	Rosmarinic acid	11.830	17,926.41
15	Daidzein	16.140	240.37
16	Querectin	17.362	2,657.63
17	Cinnamic acid	19.390	62.89
18	Kaempferol	20.672	1,061.24
19	Hesperetin	21.237	1,052.41

R_t: retention time, ND:Not detected.