Extraction Process, Component Analysis, and In Vitro Antioxidant, Antibacterial, and Anti-Inflammatory Activities of Total Flavonoid Extracts from Abutilon theophrasti Medic. Leaves

Table 6

The major compounds in TFE identified by HPLC-DAD-ESI-MSⁿ analysis.

Peak	Rt	[M-H]^−	MS/MS; [M − H]^−	[M + H]^+	MS/MS; [M + H]^+	Calculated mass	Formula	Proposed molecule	References^b
1^a	30.1	609	463,301	611	465,303	610	C27H30O16	Rutin	[24]
2	31.5	463	301	465	303	464	C21H20O12	Quercetin-7-O-β-glucoside	[49]
3	32.3	593	447,285	595	449,287	594	C27H30O15	Kaempferol 3-O-α-rhamnopyranosyl(1→6)-β-glucopyranoside	[49]
4	32.5	285	—	287	—	286	C15H10O6	Luteolin	[24]
5	41.3	593	447,285	595	449,287	594	C27H30O15	Apigenin-7-O-β-diglucoside	[46]
6	42.1	593	447,285	595	449,287	594	C27H30O15	Poncirin	[47]
7	48.7	593	447,285	595	449,287	594	C27H30O15	Tiliroside	[48]

^aPeak number as in Figure 2. ^bThe reference column refers to previous reports on metabolites in different plants.