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Table 5 Flavonoids and phenolic compounds identified in MMMC (ratio 1:1) using the UHPLC-ESI-MS/MS

From: Synergistic gastroprotective activity of methanolic extract of a mixture of Melastoma malabathricum and Muntingia calabura leaves in rats

Peak No tR (min) [M-H]- Error (ppm) Formula Identification
1. 0.61 169.01389 4.971 C7H5O5 Gallic acid
2. 1.41 337.09412 6.90 C16H17O8 3-p-Coumaroylquinic acid
3. 2.30 163.04001 6.375 C9H7O3 Coumaric acid
4. 3.41 300.999 5.071 C14H5O8 Ellagic acid
5. 3.52 609.14819 5.120 C27H29O16 Quercetin-3-rutinoside
6. 3.73 463.08984 5.912 C21H19O12 Quercetin-3-glucoside 2
7. 3.81 431.09946 5.073 C21H19O10 Vitexin
8. 3.97 463.08978 5.782 C21H19O12 Quercetin-3-glucoside 1
9. 5.10 447.09607 4.859 C21H19O11 Quercetin rhamnoside Orientin
10. 5.35 317.03094 5.508 C15H9O8 Myricetin
11. 6.62 461.11047 5.708 C22H21O11 Scoparin (Chrysoeriol-8-C-glucoside)
12. 6.62 461.11050 5.773 C22H21O11 Isoharmnetin-3-O-rhamnoside
13. 6.32 431.09933 4.771 C21H19O10 Isovitexin
14. 7.34 609.12708 5.251 C30H25O14 Prodelphinidin B3
15. 7.49 301.03595 5.551 C15H9O7 Quercetin
16. 8.20 593.13196 5.046 C30H25O13 Kaempferol-3-(p-coumarylglucoside) 1
17. 8.53 593.13184 4.844 C30H25O13 Kaempferol-3-(p-coumarylglucoside) 2
18. 8.63 271.06116 3.911 C15H11O5 Narigenin
19. 9.02 285.04062 4.405 C15H9O6 Luteolin
20. 12.02 299.05606 3.496 C16H11O6 Diosmetin
21. 12.22 269.04550 2.677 C15H9O5 Apigenin