Table 3.
Quantitative analysis (ppm) of polyphenolic compounds of pomegranate leaves and peels, fig leaves, guava leaves and olive leaves crude juices.
| Phenolic compound | Concentration (ppm) |
||||
|---|---|---|---|---|---|
| PP | PL | OL | FL | GL | |
| Gallic acid | 12622.08 | 256.69 | 97.19 | 20.57 | 142.74 |
| Chlorogenic acid | 333.41 | NP | 89.62 | 25.87 | 9.01 |
| Catechin | 633.81 | 226.90 | 143.21 | 58.36 | NP |
| Methyl gallate | 30.09 | 18.47 | 6.97 | 2.44 | 3.90 |
| Caffeic acid | 53.72 | NP | 7.07 | 19.54 | 5.03 |
| Syringic acid | 37.51 | 7.80 | 6.65 | 10.60 | NP |
| Pyrocatechol | NP | 14.24 | 28.43 | 16.77 | 112.41 |
| Rutin | NP | 11.16 | NP | 18.38 | NP |
| Ellagic acid | 496.25 | 82.95 | 22.43 | 38.54 | 20.90 |
| Coumaric acid | 17.59 | NP | 11.38 | 47.46 | 1.77 |
| Vanillin | 44.92 | 5.32 | NP | 8.99 | 5.77 |
| Ferulic acid | 47.25 | 19.15 | 21.62 | 23.65 | 16.39 |
| Naringenin | 90.12 | 23.20 | 113.45 | 31.20 | 5.85 |
| Taxifolin | NP | 5.16 | 151.39 | 115.03 | 28.05 |
| Cinnamic acid | NP | NP | 0.99 | 1.36 | 0.70 |
| Kaempferol | NP | NP | NP | 4.55 | NP |
NP refers to not present.
PP, PL, OL, FL and GL refer to pomegranate peels, pomegranate leaves, olive leaves, fig leaves and guava leaves, respectively.