Table 6.
The spectrometric data of compounds isolated from fruit of Cornus alba and IC50 values for inhibition.
| No. | Fraction | UV Max | [M-H]− m/z | MS2 Fragment Ions (m/z) | Identified Compound | IC50 [mM] | References |
|---|---|---|---|---|---|---|---|
| 1 | D2.1 | 217, 324 | 353 | 191 | chlorogenic acid | 0.80 ± 0.32 | [18] |
| 2 | D2.3 | 223, 311 | 675 * | 337, 191 | 5-O-coumaroylquinic acid | 0.84 ± 0.14 | [16] |
| 3 | D2.4 | 226, 312 | 351 | 163, 145, 119 | 5-O-(E)-p-coumaroylquinic acid methyl ester | 0.16 ± 0.01 | [17] |
| 4 | D2.5 | 265, 344 | 475 | 327, 299, 285, 255, 227 | kaempferol 3-O-glucuronide 6″-methylester | 0.21 ± 0.05 | [19] |
| 5 | H1.1 | 196, 290 | 631 * | 315, 179, 143 | hydroxytyrosol glucoside | 1.46 ± 0.18 | [20] |
* adducts.