Table 1.
Qualitative analysis of bioactive compounds in LR extract and BLR extract.
| Peak no. | tR (min) | Formula | (M-H)- |
Major fragment ions (m/z) | Proposed compounds | Found in LR or BLR | ||
|---|---|---|---|---|---|---|---|---|
| Measured | Calculated | Error |
||||||
| (ppm) | ||||||||
| 1 | 3.343 | C16H18O9 | 353.0901 | 353.0878 | 6.5 | 165.0406, 191.0379 | Chlorogenic acid a,b,c | LR |
| 2 | 3.454 | C6H12O7 | 195.0513 | 195.051 | 1.4 | 59.0139, 75.0089 | Gluconic acid b,c | LR, BLR |
| 3 | 3.57 | C9H8O4 | 179.0357 | 179.035 | 4.01 | 75.009 | Caffeic acid a,b,c | LR, BLR |
| 4 | 4.251 | C4H6O5 | 133.0148 | 133.0142 | 4.16 | 71.0142, 115.0036 | Malic acid b,c | LR, BLR |
| 5 | 4.476 | C15H18O9 | 341.0878 | 341.0878 | −0.02 | 59.0140, 179.0565 | Caffeic acid hexose b,c | LR |
| 6 | 4.738 | C16H18O8 | 337.073 | 337.0929 | 0.32 | 190.5793 | 5-p-Coumaroylquinic acid a,b,c | LR |
| 7 | 4.816 | C7H10O5 | 173.0452 | 173.0455 | −2.01 | 55.0193, 71.0142 | Shikimic acid a,b,c | LR |
| 8 | 5.5 | C7H12O6 | 191.0554 | 191.0561 | −3.74 | 87.0088, 111.0087 | Quinic acid a,b,c | LR, BLR |
| 9 | 6.181 | C9H11NO3 | 180.0684 | 180.0666 | 9.84 | 119.0503, 163.0399 | Tyrosine b,c | LR, BLR |
| 10 | 6.406 | C4H6O4 | 117.0197 | 117.0193 | 3.14 | 73.0295, 99.0087 | Succinic acid a,b,c | LR, BLR |
| 11 | 6.863 | C30H26O14 | 609.1264 | 609.125 | 2.33 | 305.067 | Epigallocatechin dimer a,b,c | LR |
| 12 | 9.02 | C15H14O7 | 305.0675 | 305.0667 | 0.6 | 125.0246, 261.0775 | Epigallocatechin a,b,c | LR |
| 13 | 10.156 | C30H26O12 | 577.1369 | 577.1351 | 3.03 | 289.0724, 407.0779 | Procyanidin B1 a,b,c | LR |
| 14 | 11.974 | C15H14O6 | 289.073 | 289.0723 | 2.5 | 109.0295, 245.0825, 271.0612 | Catechin a,b,c | LR, BLR |
| 15 | 14.134 | C15H14O6 | 289.0724 | 289.0723 | 2.21 | 109.0283, 125.0232, 151.0392, 203.0707, 245.0817 | Epicatechin a,b,c | LR, BLR |
| 16 | 22.916 | C15H12O5 | 271.0612 | 271.0612 | 0 | 107.0140, 119.9468, 125.0224, 197.0607 | Naringenin a,b,c | LR, BLR |
| 17 | 29.469 | C30H48O3 | 455.3549 | 455.3531 | 4.02 | 112.9859, 135.8063, 311.1698 | Betulinic acid a,b,c | LR, BLR |
| 18 | 10.526 | C21H24O11 | 451.1273 | 451.1246 | 6.02 | 289.0716 | Catechin-7-O-glucoside b,c | BLR |
| 19 | 22.694 | C29H36O15 | 623.1985 | 623.1981 | 0.57 | 179.0561, 297.1137, 460.1771 | Forsythoside A a,b,c | BLR |
| 20 | 22.879 | C29H24O12 | 563.1199 | 563.1195 | 0.71 | 137.0244, 400.1562, 401.1588, 426.1333 | Theaflavin a,b,c | BLR |
| 21 | 23.107 | C10H13N5O4 | 266.0893 | 266.0895 | −0.67 | 119.0499, 134.0610, 146.0412 | Adenosine a,b,c | BLR |
Note: a Compared with standard. b Compared with MSn data or/and data bases. c Compared with the literatures.