Table 3 Phenolic acids profile (mg g[-1) of PPP and its nanoparticles extracts are prepared using the optimal predicted independent variables.
From: Boosting antioxidative polyphenols extraction efficiency via nano sized pomegranate peel particles
Compounds | Free | Conjugated | Bound | ||||||
|---|---|---|---|---|---|---|---|---|---|
PPP | PPPN1 | PPPN2 | PPP | PPPN1 | PPPN2 | PPP | PPPN1 | PPPN2 | |
Gallic | 24.26 | 28.43 | 32.07 | 0.42 | 0.66 | 7.38 | 73.57 | 85.77 | 96.13 |
Protocatechuic | 2.06 | 2.26 | 2.42 | 1.76 | 2.08 | 3.11 | 1.59 | 2.25 | 4.48 |
Chlorogenic | 10.79 | 14.87 | 17.74 | ND | ND | ND | ND | ND | ND |
Vanillic | 4.28 | 4.31 | 4.49 | 0.41 | 0.49 | 0.52 | 0.24 | 0.63 | 0.92 |
Syringic | 0.42 | 0.56 | 0.93 | 0.80 | 0.88 | 0.95 | 0.34 | 0.43 | 0.54 |
Caffeic | 0.35 | 0.31 | 0.32 | ND | ND | ND | 0.15 | 0.10 | 0.19 |
Ellagic | 0.31 | 0.38 | 0.50 | 1.48 | 1.75 | 2.41 | 1.74 | 2.30 | 2.94 |
Ferulic | 0.28 | 0.33 | 0.36 | 0.35 | 0.43 | 0.44 | 0.22 | 0.21 | 0.25 |
Cinnamic | 0.04 | 0.03 | 0.03 | 0.37 | 0.39 | 0.44 | ND | 0.24 | 0.34 |
Sinapic | 0.34 | 0.40 | 0.43 | 0.60 | 0.82 | 0.98 | ND | ND | ND |
Rosmarinic | 0.24 | 0.32 | 0.35 | 2.68 | 2.38 | 2.21 | 2.32 | 4.27 | 5.39 |
Total | 43.37 | 52.2 | 59.64 | 8.87 | 9.88 | 18.44 | 80.17 | 96.2 | 111.18 |
