Table 2.
Chemical composition of phenolic extracts from different components of artichoke waste.
| Compound | Heads | Leaves | Stalks | Roots |
|---|---|---|---|---|
| (mg/g dw) | (mg/g dw) | (mg/g dw) | (mg/g dw) | |
| Chlorogenic Acid | 2.281 ± 0.114 | 3.891 ± 0.195 | 2.796 ± 0.140 | 1.403 ± 0.070 |
| Cynarin | 0.142 ± 0.007 | 0.036 ± 0.002 | 0.025 ± 0.001 | 0.156 ± 0.008 |
| Caffeic Acid | 0.178 ± 0.009 | 0.110 ± 0.006 | 0.108 ± 0.008 | 0.060 ± 0.003 |
| Luteolin 7-O-glucoside | ND | 0.608 ± 0.030 | ND | ND |
| Luteolin 7-O-glucoronide | ND | 0.545 ± 0.027 | ND | ND |
| Trans Ferulic Acid | 0.040 ± 0.002 | 0.177 ± 0.009 | 0.015 ± 0.004 | 0.504 ± 0.025 |
| 1,5-di-O-Dicaffeoylquinic Acid | 2.783 ± 0.139 | 1.090 ± 0.055 | 2.450 ± 0.123 | 0.890 ± 0.045 |
| 3,4-O Dicaffeoylquinic Acid | 0.805 ± 0.031 | 0.201 ± 0.026 | 0.516 ± 0.029 | 0.270 ± 0.025 |
| Luteolin 7-O-rutinoside | ND | 0.264 ± 0.019 | ND | ND |
| Apigenin 7-O-glucoside | 0.249 ± 0.037 | 0.016 ± 0.002 | 0.017 ± 0,004 | ND |
| Quercitin | 0.002 ± 0.001 | 0.006 ± 0.001 | 0.002 ± 0.001 | 0.002 ± 0.001 |
| Apigenin 7-O-glucoronide | 0.035 ± 0.003 | 0.002 ± 0.001 | ND | ND |
| Apigenin 7-O-rutinoside | 0.008 ± 0.001 | ND | 0.006 ± 0.001 | ND |
| Total Phenols | 6.523 ± 0.326 | 6.943 ± 0.347 | 5.933 ± 0.297 | 3.283 ± 0.164 |
ND: Not detected because below the instrumental detection limit.