Table 1.
Content levels of ginkgo compounds in ShuXueNing injection or GBE50
| Compound | ShuXueNing injection (μmol·mL−1) | GBE50 (μmol·10 mg−1) |
|---|---|---|
| Bilobalide (1) | 0.0002 | 0.954 |
| Ginkgolide A (2) | 0.289 | 0.551 |
| Ginkgolide B (3) | 0.100 | 0.325 |
| Ginkgolide C (4) | 0.184 | 0.316 |
| Ginkgolide J (5) | 0.091 | 0.105 |
| Quercetin 3-O-dirhamnosyl-glucoside (10) | 0.072 | 0.270 |
| Quercetin 3-O-(p-coumaroyl)-glucosyl-O-rhamnoside (11) | 0.096 | 0.617 |
| Quercetin 3-O-rhamnosyl-O-glucoside (12) | 0.174 | 0.660 |
| Quercetin 3-O-glucosyl-O-rhamnoside (13) | 0.065 | 0.354 |
| Quercetin (16) | 0.003 | 0.088 |
| t-Quercetin | 0.397 | 2.149 |
| Kaempferol 3-O-dirhamnosyl-glucoside (19) | 0.089 | 0.425 |
| Kaempferol 3-O-(p-coumaroyl)-glucosyl-O-rhamnoside (20) | 0.080 | 0.707 |
| Kaempferol 3-O-rhamnosyl-O-glucoside (21) | 0.162 | 0.655 |
| Kaempferol 3-O-glucosyl-O-rhamnoside (22) | 0.072 | 0.474 |
| Kaempferol (26) | 0.004 | 0.095 |
| t-Kaempferol | 0.441 | 2.378 |
| Isorhamnetin 3-O-dirhamnosyl-glucoside (27) | 0.002 | 0.018 |
| Isorhamnetin 3-O-rhamnosyl-O-glucoside (29) | 0.088 | 0.559 |
| Isorhamnetin 3-O-glucosyl-O-rhamnoside (30) | 0.0003 | 0.004 |
| Isorhamnetin (32) | 0.001 | 0.014 |
| t-Isorhamnetin | 0.127 | 0.665 |
The ginkgo compounds are given ID numbers in parentheses, which are consistent with those for GBE50 described in our earlier publication (Li et al., 2012). Hydrochloric acid-based hydrolysis was applied to the sample to convert the flavonol glycosides present into their aglycone forms before measurement of the content levels of t-quercetin, t-kaempferol, and t-isorhamnetin in ShuXueNing injection or GBE50.