Evidence-Based Complementary and Alternative Medicine

Research Article

Antioxidant and Anti-Inflammatory Activities of Phenolic-Enriched Extracts of Smilax glabra

Table 2

Characterization of major constituents of ethanol extract of S. glabra by UHPLC-DAD-MS/MS.


Number	(min)	(nm)	Observed mass	Calculated mass	Error (ppm)	Formula M–H⁻	LC-MS² data	Constituents

1	2.44	280	255.0497	255.0499	−0.781	C₁₁H₁₁O₇	193.0504, 179.0349, 165.0557	Phenolic acid derivatives
2	3.87	252, 285	289.0702	289.0707	−1.54	C₁₅H₁₃O₆	245.0816, 205.0504, 179.0348	Epicatechin
3	5.61	227, 283	239.0549	239.0550	−0.52	C₁₁H₁₁O₆	221.0456, 199.8137, 195.1390, 179.0348, 177.0556, 149.0608	Phenolic acid derivatives
4	6.24	227, 280	289.0702	289.0707	−1.23	C₁₅H₁₃O₆	245.0816, 205.0504, 179.0348	Catechin
5	6.72	276	335.0753	335.0761	−2.46	C₁₆H₁₅O₈	291.0871, 179.0349, 135.0450	3-O-Caffeoylshikimic acid
6	7.24	253, 285	335.0754	335.0761	−2.10	C₁₆H₁₅O₈	291.0871, 179.0349, 135.0450	4-O-Caffeoylshikimic acid
7	8.17	254, 326	335.0757	335.0761	−1.30	C₁₆H₁₅O₈	291.0871, 179.0349, 135.0450	5-O-Caffeoylshikimic acid
8	8.62	255, 283	451.1009	451.1024	−2.79	C₂₄H₁₉O₉	341.0660	Cinchonain Ia
9	9.78	285	303.0492	303.0499	−1.91	C₁₅H₁₁O₇	285.0401	Taxifolin
10	12.39	290	449.1067	449.1078	−2.56	C₂₁H₂₁O₁₁	431.0977, 323.0768, 303.0507, 285.0401, 151.0037	Neoastilbin
11	12.82	209, 284	451.1009	451.1024	−3.19	C₂₄H₁₉O₉	341.0660	Cinchonain Ib
12	13.10	241, 290	449.1069	449.1078	−2.09	C₂₁H₂₁O₁₁	431.0977, 323.0768, 303.0507, 285.0401, 151.0037	Astilbin
13	13.82	294	449.1065	449.1078	−3.02	C₂₁H₂₁O₁₁	431.0977, 323.0768, 303.0507, 285.0401, 151.0037	Neoisoastilbin
14	14.22	251, 295	449.1067	449.1078	−2.62	C₂₁H₂₁O₁₁	431.0977, 323.0768, 303.0507, 285.0401, 151.0037	Isoastilbin
15	15.67	292	433.1115	433.1129	−3.33	C₂₁H₂₁O₁₀	287.0558, 269.0452, 259.0608	Engeletin
16	16.16	281	451.1010	451.1024	−3.19	C₂₄H₁₉O₉	341.0660	Phenolic acid derivatives
17	16.82	293	433.1117	433.1129	−2.92	C₂₁H₂₁O₁₀	287.0558, 269.0452, 259.0608	Isoengeletin