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. 2024 Jul 14;10(14):e34480. doi: 10.1016/j.heliyon.2024.e34480

Table 3.

Qualitative characterization of flavonoids and phenolics in LsCrude LsD, LsE and LsW fraction.

Compounds
 Formula
 Retention Time (min)
 Mode of Ionization (ESI−/ESI+)
 Mass
 m/z
 Mass Error (ppm)
 Sample
Flavonoids
1. (−)-Epigallocatechin 3-(4-methyl-gallate) C23 H20 O11 16.367 [M − H] − 472.10 471.09 −5.97 LsCrude
2. Catechin 7-O-alpha-l-rhamnopyranoside C21 H24 O10 12.364 [M − H] − 436.14 435.13 0.84 LsCrude
3. (−)-Epigallocatechin 3-(4-methyl-gallate) C23 H20 O11 16.367 [M − H] − 472.10 471.09 −4.94 LsD
4. Catechin 7-O-alpha-l-rhamnopyranoside C21 H24 O10 17.263 [M − H] − 436.14 435.13 1.43 LsD
5. Gallocatechin-(4alpha->8)-epigallocatechin C30 H26 O14 17.442 [M − H] − 610.13 609.12 −2.96 LsD
6. Epicatechin 5-O-beta-d-glucopyranoside-3-benzoate C28 H28 O12 18.782 [M − H] − 556.16 555.15 −0.87 LsD
7. Gallocatechin-4beta-ol C15 H14 O8 4.16 [M − H] − 322.07 367.06 −8.41 LsE
8. (−)-Epigallocatechin 3-(4-methyl-gallate) C23 H20 O11 16.361 [M − H] − 472.10 471.09 −4.87 LsE
9. Gallocatechin-(4alpha->8)-epigallocatechin C30 H26 O14 17.461 [M − H] − 610.13 609.12 −4.32 LsE
10. Quercetin 3-(2″-galloyl-alpha-l-arabinopyranoside) C27 H22 O15 16.299 [M − H] − 586.10 585.08 −9.33 LsD
11. Quercetin C15 H10 O7 17.89 [M − H] − 302.04 301.04 −1.03 LsD
12. Quercetin 3-(2″-galloyl-alpha-l-arabinopyranoside) C27 H22 O15 16.311 [M − H] − 586.10 585.08 −9.1 LsE
13. Kaempferol 7-O-glucoside C21 H20 O11 16.215 [M − H] − 448.10 447.09 0.15 LsE
14. Kaempferol 3-(2″-galloyl-alpha-l-arabinopyranoside) C27 H22 O14 16.898 [M − H] − 570.10 569.09 −8.32 LsE
15. Kaempferol 3-(3″-p-coumaroylrhamnoside)-7-rhamnoside C36 H36 O16 17.163 [M − H] − 724.20 723.19 −0.47 LsE
16. Kaempferol C15 H10 O6 18.473 [M − H] − 286.05 285.04 −1.05 LsE
17. Luteolin C15 H10 O6 17.812 [M − H] − 286.05 285.04 1.43 LsD
18. Luteolin C15 H10 O6 17.84 [M − H] − 286.05 285.04 1.15 LsE
19. 2′,3,5,6′,7-Pentahydroxyflavanone C15 H12 O7 16.152 [M − H] − 304.06 303.05 −0.79 LsCrude
20. 2,6,7,4′-Tetrahydroxyisoflavanone C15 H12 O6 17.255 [M − H] − 288.06 287.06 −0.72 LsCrude
21. 2,5-Dihydroxy-7-methoxy-8-methylflavanone C17 H16 O5 19.342 [M − H] − 300.10 299.09 1.81 LsCrude
22. 2′,3,5,6′,7-Pentahydroxyflavanone C15 H12 O7 16.175 [M − H] − 304.06 303.05 −0.38 LsD
23. 2,5-Dihydroxy-7-methoxy-8-methylflavanone C17 H16 O5 19.337 [M − H] − 300.10 299.09 1.02 LsD
24. 2′,3,5,6′,7-Pentahydroxyflavanone C15 H12 O7 16.207 [M − H] − 304.06 303.05 −0.99 LsE
25. Euchrestaflavanone A C25 H28 O5 21.226 [M − H] − 408.19 407.19 0.39 LsE
26. Uvarinol C36 H30 O7 15.753 [M − H] − 574.20 575.21 −1.73 LsW
Phenolics
27. Gallic acid C7 H6 O5 13.533 [M − H] − 170.02 169.01 −0.62 LsD
28. Resveratrol 4'-(2-galloylglucoside) C27 H26 O12 16.532 [M − H] − 542.14 541.14 0.55 LsD
29. Resveratrol 4'-(2-galloylglucoside) C27 H26 O12 16.482 [M − H] − 542.14 541.14 0.3 LsE
30. Kelampayoside A C20 H30 O13 9.572 [M + HCOO] − 478.17 501.15 −7.96 LsW