Table 3.
Total polyphenols, procyanidins, flavonoids and antioxidant properties of 14 resveratrol-containing food supplements.
| Sample | Form a | Tot. Polyphenols b | Tot. Procyanidins c | Tot. Flavonoids d | IC50 DPPH | IC50 ABTS |
|---|---|---|---|---|---|---|
| g/100g | mg/mL | |||||
| PC001 | P | 75.60 ± 2.94 | 2.28 ± 0.16 | 11.61 ± 0.52 | 16.34 ± 1.39 | 1.15 ± 0.07 |
| PC002 | P | 93.72 ± 1.44 | 0.54 ± 0.08 | 0.00 | 13.15 ± 1.11 | 0.65 ± 0.05 |
| PC003 | P | 98.47 ± 1.01 | 0.57 ± 0.04 | 0.00 | 14.40 ± 1.53 | 0.81 ± 0.05 |
| PC004 | P | 77.86 ± 2.58 | 1.63 ± 0.15 | 9.81 ± 0.85 | 24.83 ± 1.79 | 1.37 ± 0.11 |
| PC005 | P | 64.31 ± 2.34 | 0.44 ± 0.02 | 0.00 | 18.81 ± 1.81 | 1.19 ± 0.20 |
| PC006 | P | 99.07 ± 1.05 | 0.39 ± 0.03 | 0.00 | 13.81 ± 0.99 | 0.77 ± 0.05 |
| PC007 | M | 36.32 ± 3.63 | 0.33 ± 0.04 | 0.00 | 38.65 ± 2.04 | 1.55 ± 0.03 |
| PC008 | M | 42.14 ± 2.84 | 0.37 ± 0.09 | 8.01 ± 0.36 | 20.23 ± 1.83 | 2.24 ± 0.07 |
| PC009 | M | 13.80 ± 0.96 | 5.05 ± 0.25 | 1.78 ± 0.12 | 18.45 ± 1.03 | 6.77 ± 0.24 |
| PC010 | P | 28.30 ± 1.94 | 0.79 ± 0.12 | 4.11 ± 0.21 | 25.65 ± 1.87 | 2.54 ± 0.19 |
| PC011 | M | 21.71 ± 1.25 | 7.86 ± 0.86 | 3.13 ± 0.18 | 32.65 ± 1.43 | 3.71 ± 0.06 |
| PC012 | M | 18.83 ± 1.14 | 3.33 ± 0.22 | 2.33 ± 0.16 | 16.93 ± 1.09 | 4.49 ± 0.03 |
| PC013 | M | 51.18 ± 0.94 | 8.13 ± 0.91 | 17.23 ± 0.55 | 10.94 ± 0.93 | 1.79 ± 0.06 |
| PC014 | M | 49.57 ± 1.84 | 0.58 ± 0.03 | 47.44 ± 1.56 | 18.51 ± 0.89 | 2.36 ± 0.08 |
| trans-Resveratrol | 17.9 ± 1.38 | 0.84 ± 0.05 | ||||
Legend: a P = Pure, M = Multi-ingredient; b per 100g of capsule content, expressed as resveratrol; c per 100g of capsule content, expressed as cyanidin chloride; d per 100g of capsule content, expressed as quercetin.