Table 2.
The content of phenolic acids (TPAC), flavonoids (TFC) and total phenolic compounds (TPC) and the ratio of TPAC, TFC to TPC in the extracts from the leaves of T. europaeus on which aphids were present (TAph) and were not present (TE), n = 6
| Content [%] | Extract | TAph/TE [%] | ||
|---|---|---|---|---|
| TAph | TE | |||
| TPAC (%CA) | 0.32 ± 0.01 | 0.25 ± 0.01 | 28.0 | |
| TFC (%V) | 0.25 ± 0.03 | 0.20 ± 0.04 | 25.0 | |
| TPC (%CA) | 3.86 ± 0.02 | 2.87 ± 0.02 | 34.5 | |
| Ratio [%] | ||||
| TPAC / TPC | 8.3 | 8.7 | ||
| TFC / TPC | 6.5 | 7.0 | ||
| (TPAC + TFC) / TPC | 14.8 | 15.7 |
CA- caffeic acid, V- vitexin, TAph/TE - Increase in the content of the compounds in TAph compared to TE [%], TAph- the methanol extract from the leaves of Trollius europaeus on which aphids were present, TE- the methanol extract from the leaves of Trollius europaeus on which aphids were not present.