Table 1.
Percent by weight of GbE constituents in unhydrolyzed samples quantitated by HPLC-ELSD/UV
| Source/type | GbE ID | Terpene trilactones1 | Rutin | Flavonols1 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Bilobalide | A | B | C | J | Quercetin | Kaempferol | Isorhamnetin | |||
| NTP UFP | 1 | 6.30 | 5.66 | 1.75 | 2.21 | 1.19 | 3.45 | 0.49 | 0.15 | 0.05 |
| NTP UFP | 1A | 7.33 | 5.18 | 1.89 | 1.99 | 1.70 | 3.95 | 0.48 | 0.16 | 0.08 |
| NTP UFP | 1F | 6.64 | 5.67 | 1.72 | 2.12 | 1.05 | 3.58 | 0.52 | 0.15 | 0.04 |
| 1 UFP | A | ND | ND | ND | ND | ND | 3.40 | 0.15 | ND | ND |
| 1 UFP | B | ND | ND | ND | ND | ND | 2.60 | 0.14 | ND | ND |
| 1 UFP | C | ND | ND | ND | ND | ND | 1.92 | 0.11 | ND | ND |
| 2 UFP | D | 1.48 | 2.09 | 1.42 | 2.77 | 1.36 | 1.54 | 4.22 | 0.95 | 0.19 |
| 3 UFP | E | 1.31 | 2.30 | 1.57 | 2.80 | 1.39 | 1.40 | 3.46 | 1.59 | 0.18 |
| 4 UFP | F | ND | ND | ND | ND | ND | 2.22 | 0.15 | ND | ND |
| 5 UFP | G | ND | 0.62 | 0.77 | 0.83 | 0.65 | ND | ND | ND | ND |
| 5 UFP | H | ND | ND | ND | ND | ND | ND | ND | ND | ND |
| 5 UFP | I | 1.53 | 2.63 | 1.41 | 1.89 | 1.19 | 1.05 | 5.17 | 1.17 | 0.23 |
| 6 UFP | J | 2.29 | 3.30 | 1.76 | 1.68 | 1.14 | 0.57 | 5.08 | 3.78 | 0.27 |
| 7 UFP | K | 3.13 | 2.78 | 1.30 | 1.92 | 1.27 | 1.79 | 3.48 | 2.43 | 0.21 |
| 8 UFP | L | 3.02 | 3.25 | 1.29 | 1.63 | 1.15 | 4.16 | 0.45 | 0.36 | 0.19 |
| 9 UFP | M | 1.31 | ND | ND | ND | ND | 0.09 | 0.44 | 0.31 | 0.11 |
| 9 UFP | N | 1.70 | 4.41 | 1.91 | 1.18 | 0.88 | 0.91 | 4.51 | 2.33 | 0.32 |
| 10 UFP | O | 2.75 | 3.78 | 1.82 | 1.72 | 1.27 | 1.25 | 6.36 | 0.68 | 0.22 |
| 11 UFP | P | 1.07 | ND | 0.64 | 0.75 | 1.39 | 2.12 | 1.50 | 2.34 | 0.17 |
| 12 UFP | Q | 1.95 | 3.18 | 1.57 | 2.46 | 1.48 | 1.79 | 2.91 | 1.02 | 0.20 |
| 13 UFP | R | 2.09 | 2.75 | 1.51 | 1.56 | 1.32 | 0.97 | 2.42 | 1.25 | 0.23 |
| 14 UFP | S | 2.95 | 2.24 | 1.11 | 1.62 | 1.26 | 0.88 | 4.07 | 3.47 | 0.30 |
| 15 UFP | T | 2.29 | 3.53 | 1.47 | 1.43 | 1.07 | 4.03 | 0.36 | 0.48 | 0.26 |
| NIST SRM | U | 3.53 | 2.79 | 2.74 | 1.66 | 2.03 | 3.04 | 0.36 | 0.29 | 0.18 |
| NIST SRM | V | 0.97 | 1.03 | 0.67 | 0.82 | ND | 0.49 | 0.21 | ND | ND |
| 16 FP | W | 4.19 | 6.11 | 2.91 | 1.76 | 1.16 | 4.56 | 0.71 | 0.63 | 0.06 |
| 16 FP | X | 3.73 | 4.76 | 1.51 | 2.12 | 1.69 | 4.47 | 0.33 | 0.16 | 0.05 |
| 16 FP | Y | 3.77 | 4.45 | 1.38 | 1.96 | 1.58 | 4.15 | 0.37 | 0.21 | 0.05 |
| 16 FP | Z | 3.42 | 4.48 | 1.28 | 1.97 | 1.54 | 4.21 | 0.30 | 0.18 | 0.05 |
1Values reported for quercetin, kaempferol, and isorhamnetin are aglycone concentrations. Glycoside values may be obtained by multiplying the quercetin, kaempferol, and isorhamnetin values by 2.504, 2.588, and 2.437, respectively
Values in italics are below LOQ. See Table S2 for LOD and LOQ values for each GbE constituent. ND, not detected
2FP, finished product; UFP, unfinished product; SRM, standard reference material