Table 1.
Relative concentrations* (%) of selected phenolic compounds in the extract of the PL cell line tissue grown on a high-anthocyanin producing medium during 24 days. (T: concentration less than 0.1%; ND: not detected.)
| Day | CA | CH | 3,5-DCQA | 4,5-DCQA | 3,4-DCQA | 3,4,5-TCQA | Total conc | Total amount (mg/gFW) |
|---|---|---|---|---|---|---|---|---|
| 0 | 4.7±0.0⧫ | 0.6±0.0 | 8.7±0.0 | 1.2±0.0 | 0.4±0.0 | ND | 15.2 | 20.2±0.0 |
| 2 | 6.0±1.4 | 3.2±0.3 | 0.1±0.1 | 0.1±0.1 | ND | ND | 9.4 | 21±3.8 |
| 4 | 3.8±1.3 | 1.2±0.4 | 15.8±5.2 | 1.8±0.1 | 0.6±0.1 | ND | 23.2 | 117±17.6 |
| 6 | 5.1±2.6 | 1.1±0.5 | 13.0±7.4 | 1.7±0.6 | 0.7±0.1 | T | 21.6 | 109±29.5 |
| 15 | 4.1±1.6 | 1.5±0.7 | 13.5±5.9 | 2.9±0.8 | 1.4±0.1 | 0.1±0.01 | 23.5 | 102±36.6 |
| 18 | 6.7±3.0 | 0.9±0.1 | 3.0±0.2 | 1.6±0.6 | — | 0.1±0.01 | 12.3 | 40±9.4 |
| 21 | 8.2±5.4 | 1.1±0.4 | 4.4±1.5 | 2.0±0.9 | 1.2±0.1 | 0.12±0.01 | 17.0 | 52±11.2 |
| 24 | 9.1±1.7 | 0.8±0.1 | 3.9±0.6 | 1.3±0.2 | 1.1±0.1 | 0.13±0.01 | 16.33 | 48±8.5 |
*The relative concentrations calculated based on the total peak area of phenolics detected at 326 nm (100%) and the area of the peaks of interest (%).
⧫Standard deviations of 6 independent determinations for each sampling point.