Table 2.
Qualitative phytochemical screening of pomegranate peel and seed extracts according to the solvent used for extraction and the pomegranate cultivar.
| Solvent | By-product | Cultivar | TPC | TF | Tan | Sap | FA | CA | Alk | Pol | Terp | CG |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EtOH 0% | Peels | Acco | + + + | + + + | + + + | + | — | — | — | — | + | — |
| Big Full | + + + | + + + | + + + | + | — | + | — | — | + + | — | ||
| Wonderful | + + + | + + + | + + + | + | — | — | — | — | + | — | ||
| Seeds | Acco | + + + | + + | + + | — | — | + + | — | — | — | — | |
| Big Full | + + + | + + | — | — | + | + + + | — | — | — | — | ||
| Wonderful | + + + | + + | + + + | — | — | + | — | — | + | — | ||
| EtOH 25% | Peels | Acco | + + + | + + + | + + + | + + | — | — | — | — | + | — |
| Big Full | + + + | + + + | + + + | + | — | + | — | — | + + + | — | ||
| Wonderful | + + + | + + + | + + + | + + | — | — | — | — | + + | — | ||
| Seeds | Acco | + + + | + + | + + | — | — | + | — | — | + | — | |
| Big Full | + + + | + + | + | — | + + | + + + | — | — | — | — | ||
| Wonderful | + + + | + + | + + + | — | — | — | — | — | + | — | ||
| EtOH 50% | Peels | Acco | + + + | + + + | + + + | + + | — | — | — | — | — | — |
| Big Full | + + + | + + + | + + + | + + | — | — | — | — | + | + | ||
| Wonderful | + + + | + + + | + + + | + + | — | — | — | — | + | + | ||
| Seeds | Acco | + + + | + + | + + + | + | — | + | — | — | — | — | |
| Big Full | + + + | + + | + + + | — | + + + | + + + | — | — | + | + + | ||
| Wonderful | + + + | + + + | + + + | — | — | — | — | — | + | + | ||
| EtOH 75% | Peels | Acco | + + + | + + + | + + + | — | — | — | — | — | + | + |
| Big Full | + + + | + + + | + + + | — | — | + | — | — | + + | + + | ||
| Wonderful | + + + | + + + | + + + | — | — | — | — | — | + | + + | ||
| Seeds | Acco | + + + | + + | + + + | — | — | + | — | — | — | — | |
| Big Full | + + + | + + | + + | — | + + + | + + + | — | — | — | — | ||
| Wonderful | + + + | + + + | + + + | — | — | — | — | — | + + | + + |
+++: large response; ++: moderate response; +: minor response; -: no response. Results are expressed as mean values of duplicates of two independent extractions. TPC: total phenolic compounds; TF: total flavonoids; Tan: tannins; Sap: saponins; FA: free anthraquinones; CA: combined anthraquinones; Alk: alkaloids; Pol: polysteroids; Terp: triterpenoids; CG: cardiac glycosides.