Table 2.
Pasta Types | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Control | Powdered WG | Encapsulated WG Extract | WG Extract | |||||||
Low | Mid | High | Low | Mid | High | Low | Mid | High | ||
Phenolic compounds (mg GAE/g d.m.) | ||||||||||
Total | 1.06 ± 0.001 a | 1.34 ± 0.006 b | 2.04 ± 0.009 e | 2.15 ± 0.007 f | 1.70 ± 0.006 c | 2.21 ± 0.002 g | 2.46 ± 0.010 h | 1.86 ± 0.012 d | 2.22 ± 0.002 g | 2.61 ± 0.012 i |
Free | 0.44 ± 0.005 a | 0.74 ± 0.005 b | 1.28 ± 0.007 g | 1.33 ± 0.003 h | 1.03 ± 0.004 f | 1.33 ± 0.000 h | 1.40 ± 0.005 i | 0.76 ± 0.007 c | 0.85 ± 0.002 d | 0.92 ± 0.003 e |
Bound | 0.62 ± 0.005 a | 0.60 ± 0.001 a | 0.76 ± 0.001 b | 0.82 ± 0.004 b, c | 0.67 ± 0.002 a | 0.88 ± 0.002 c | 1.06 ± 0.005 d | 1.10 ± 0.028 d | 1.38 ± 0.099 e | 1.71 ± 0.010 f |
Flavonoids (mg RU/g d.m.) | ||||||||||
Total | 0.05 ± 0.000 b | 0.12 ± 0.001 f | 0.18 ± 0.001 g | 0.22 ± 0.004 f | 0.08 ± 0.000 d | 0.20 ± 0.002 h | 0.23 ± 0.003 i | 0.04 ± 0.002 a | 0.07 ± 0.000 c | 0.10 ± 0.000 e |
Free | 0.05 ± 0.000 b | 0.11 ± 0.000 f | 0.17 ± 0.000 g | 0.20 ± 0.001 i | 0.08 ± 0.000 d | 0.19 ± 0.002 h | 0.22 ± 0.003 j | 0.04 ± 0.002 a | 0.06 ± 0.000 c | 0.09 ± 0.000 e |
Bound | 0.004 ± 0.000 a | 0.012 ± 0.000 d,e | 0.016 ± 0.001 e | 0.021 ± 0.000 f | 0.007 ± 0.000 a–c | 0.012 ± 0.000 c–e | 0.012 ± 0.000 d,e | 0.005 ± 0.000 a,b | 0.006 ± 0.021 a,b | 0.010 ± 0.000 b–d |
Note: Values expressed as mean ± standard deviation. Values in a row followed by different letters are significantly different at p < 0.05 (Tukey’s HSD test). Enrichment levels (Low–Mid–High): 5–7–9% powdered WG; 3–5–7% encapsulated WG; 20–30–40% WG extract.