Table 1.
Chemical components of BSF identified by HPLC-ESI/MS𝑛.
| No. | Retention time | Formula | Adduct/charge | Experimental mass | Identification |
|---|---|---|---|---|---|
| 1 | 1.18 | C4H9NO3 | [M + H]+ | 120.0655 | Threonine |
| 2 | 1.39 | C7H13NO2 | [M + H]+ | 144.1019 | Stachydrine |
| 3 | 1.63 | C5H5N5 | [M + H]+ | 136.0618 | Adenine |
| 4 | 1.65 | C5H4N4O | [M + H]+ | 137.0458 | 6-Hydroxypurine |
| 5 | 1.77 | C6H13NO2 | [M + H]+ | 132.1019 | Leucine |
| 6 | 4.44 | C7H6O5 | [M-H]- | 169.0142 | Gallic acid |
| 7 | 6.04 | C6H6O3 | [M + H]+ | 127.039 | 5-Hydroxymethylfurfural |
| 8 | 6.65 | C9H10O5 | [M-H]- | 197.0455 | Danshensu |
| 9 | 9.35 | C14H20O7.NH3 | [M + H]+ | 318.1547 | Salidroside |
| 10 | 11.22 | C17H24O9.NH3 | [M + H]+ | 390.1759 | Syringin |
| 11 | 11.7 | C9H6O4 | [M-H]- | 177.0193 | Esculetin |
| 12 | 12.78 | C17H26O10.HCOOH | [M-H]- | 435.1508 | Loganin |
| 13 | 13.03 | C21H20O9 | [M + H]+ | 417.118 | Puerarin |
| 14 | 13.39 | C16H22O9 | [M + H]+ | 359.1337 | Sweroside |
| 15 | 13.97 | C10H8O5 | [M + H]+ | 209.0444 | Fraxetin |
| 16 | 14.61 | C35H46O20 | [M-H]- | 785.251 | Echinacoside |
| 17 | 14.88 | C23H28O11.NH3 | [M + H]+ | 498.197 | Paeoniflorin |
| 18 | 16.22 | C36H48O20 | [M-H]- | 799.2666 | |
| 19 | 16.49 | C10H8O4 | [M + H]+ | 193.0495 | Isoscopoletin |
| 20 | 16.61 | C10H10O4 | [M + H]+ | 195.0652 | Ferulic acid |
| 21 | 16.96 | C22H22O10 | [M + H]+ | 447.1286 | Calycosin-7-o-glucoside |
| 22 | 17.11 | C34H44O19 | [M-H]- | 755.2404 | Forsythoside B |
| 23 | 17.32 | C21H20O12 | [M-H]- | 463.0882 | Isoquercitrin |
| 24 | 17.82 | C21H20O11 | [M + H]+ | 449.1078 | Homoorientin (isoorientin) |
| 25 | 18.38 | C7H6O3 | [M-H]- | 137.0244 | Salicylic acid |
| 26 | 18.98 | C20H18O10 | [M-H]- | 417.0827 | Salvianolic acid D |
| 27 | 19.16 | C29H36O15 | [M-H]- | 623.1981 | |
| 28 | 20.52 | C18H16O8 | [M-H]- | 359.0772 | Rosmarinic acid |
| 29 | 20.89 | C21H18O12 | [M + H]+ | 463.0871 | Scutellarin |
| 30 | 22.17 | C36H30O16 | [M-H]- | 717.1461 | Salvianolic acid B |
| 31 | 22.24 | C21H18O11 | [M-H]- | 445.0776 | Baicalin |
| 32 | 23.49 | C15H12O4 | [M + H]+ | 257.0808 | Isoliquiritigenin |
| 33 | 24.02 | C26H22O10 | [M-H]- | 493.114 | Salvianolic acid A |
| 34 | 24.23 | C27H34O11 | [M + NH4]+ | 552.2439 | Arctiin |
| 35 | 24.64 | C15H10O6 | [M-H]- | 285.0405 | Luteolin |
| 36 | 24.66 | C15H10O7 | [M-H]- | 301.0354 | Quercetin |
| 37 | 27.4 | C15H12O5 | [M + H]+ | 273.0757 | Naringenin |
| 38 | 27.7 | C30H32O12.NH3 | [M + H]+ | 602.2232 | Benzoylpaeoniflorin |
| 39 | 27.85 | C15H10O5 | [M-H]- | 269.0455 | Apigenin |
| 40 | 28.79 | C16H12O6 | [M + H]+ | 301.0707 | Diosmetin |
| 41 | 29.73 | C15H10O5 | [M + H]+ | 271.0601 | Baicalein |
| 42 | 31 | C15H12O4 | [M + H]+ | 257.0808 | Liquiritigenin |
| 43 | 33.2 | C41H68O14 | [M + FA-H]- | 829.4591 | Astragaloside IV |
| 44 | 35.37 | C16H12O5 | [M-H]- | 283.0612 | Wogonin |
| 45 | 36.5 | C21H22O8 | [M + H]+ | 403.1387 | Nobiletin |
| 46 | 38.17 | C15H20O3 | [M + H]+ | 249.1485 | Parthenolide |
| 47 | 39.32 | C20H20O7 | [M + H]+ | 373.1282 | Tangeretin |
| 48 | 46.36 | C19H20O3 | [M + H]+ | 297.1485 | Cryptotanshinone |
| 49 | 46.37 | C18H12O3 | [M + H]+ | 277.0859 | Tanshinone I |
| 50 | 49.29 | C19H18O3 | [M + H]+ | 295.1329 | Tanshinone IIA |
| 51 | 52.72 | C18H32O2 | [M-H]- | 279.233 | Linoleic acid |
| 52 | 35.8/37.6/38.98 | C43H70O15.HCOOH | [M-H]- | 871.4697 | Astragaloside II |
| 53 | 40.9/42.4/43.9 | C45H72O16.HCOOH | [M-H]- | 913.4802 | Astragaloside I |
| 54 | 51.7/52.1/56.8/57.4 | C30H48O3 | [M-H]- | 455.3531 | Oleanolic acid |