Table 1.

Differential metabolites in Caco-2 cell.

No	RT	VIP	Formual	Metabolites	SM	m/z	Fold change
							C/H	N/H
1	1.881573	2.18	C5H4N4O2	Xanthine	ESI+	151.0254	0.32	1.91*
2	1.832831	3.31	C3H9O6P	Glycerol 3-phosphate	ESI+	171.0078	1.88	2.17*
3	8.151354	1.36	C17H20N4O6	Riboflavin	ESI+	375.1308	1.11	2.17*
4	2.945925	1.23	C5H7NO3	Pyroglutamic acid	ESI+	128.0343	0.89	0.25*
5	1.696262	2.19	C20H16O9	Pyrogallin	ESI+	203.0369	1.09	3.27*
6	4.815042	2.21	C4H11O4P	Phosphoric acid	ESI+	96.96839	0.88	2.56*
7	3.336667	1.09	C8H18O7S	Sulfonic acid	ESI+	273.0383	0.41	1.16*
8	3.337222	2.11	C9H17NO5	Pantothenic acid	ESI+	218.1032	0.55	2.17*
9	14.40785	2.97	C9H11NO2	Methyltyrosine	ESI+	194.0817	0.45	1.66*
10	3.324992	5.21	C14H14N2O5	Acetyl-L-aspartic acid	ESI+	174.0397	2.18	0.86*
11	1.38885	3.21	C6H10O7	Glucuronic acid	ESI+	193.0349	0.65	1.92*
12	10.86779	1.99	C3H7NO5S	Cysteic acid	ESI+	167.9959	0.58	1.85*
13	3.515183	1.09	NH2CH2CH2SO3H	Taurine	ESI+	124.0062	1.92	0.57*
14	1.36195	2.51	C6H9N3O2	L-Histidine	ESI+	154.0616	0.77	1.68*
15	3.1647	2.51	C5H9NO4	L-Glutamic acid	ESI+	146.0449	0.68	0.18*
16	1.214575	3.88	C3H6O3	Lactic acid	ESI+	89.02312	0.27	1.72*
17	1.634986	1.71	C5H7NO3	Oxoproline	ESI+	128.0344	0.82	2.13*
18	1.53901	1.41	C10H12N4O5	Inosine	ESI+	267.0735	0.78	1.89*
19	1.538802	3.77	C5H4N4O	Hypoxanthine	ESI-	135.0304	0.77	1.81*
20	1.319585	5.06	C6H9N3O2	Histidine	ESI-	154.0615	0.77	2.78*
21	1.888793	1.17	C10H13N5O5	Guanosine	ESI-	282.0847	3.27	0.98*
22	1.633602	2.86	C5H5N5O	Guanine	ESI-	150.0412	0.67	2.66*
23	2.889838	3.90	C9H17NO5	Pantothenic acid	ESI-	218.1031	1.27	2.97*
24	1.885903	2.18	C5H8O5	Citramalic acid	ESI-	147.0291	0.78	1.89*

The * symbol indicates the value of p <0.05 compared with the H₂O₂ group.