Table 1.
The content of total phenolics, flavonoids, and protein in Cucurbita spp. peel extracts.
| Species/Variety | Extract | Total Phenolics (mg GAE/g dw) |
Flavonoids (mg QE/g dw) |
Protein (mg BSA/g dw) |
|---|---|---|---|---|
| C. maxima/Halloween | W | 12.116 ± 0.233 a | 5.032 ± 0.910 a | 29.892 ± 3.513 a |
| HG | 13.920 ± 0.153 b | 3.967 ± 0.269 ab | 25.841 ± 4.719 a | |
| E | 17.599 ± 0.124 c | 3.114 ± 0.558 b | 7.871 ± 0.535 b | |
| C. maxima/Hokkaido | W | 17.336 ± 0.249 a | 7.108 ± 0.120 a | 47.470 ± 5.277 a |
| HG | 12.593 ± 0.493 b | 2.967 ± 0.081 b | 22.128 ± 4.421 b | |
| E | 4.623 ± 0.082 c | 3.629 ± 0.258 c | 15.588 ± 0.925 b | |
| C. moschata/Butternut | W | 11.005 ± 0.179 a | 5.032 ± 0.123 a | 18.618 ± 0.385 a |
| HG | 9.879 ± 0.737 b | 4.542 ± 0.099 b | 10.722 ± 0.578 b | |
| E | 6.575 ± 0.109 c | 3.381 ± 0.055 c | 5.136 ± 0.545 c | |
| C. moschata/Nelson | W | 16.871 ± 0.382 a | 4.294 ± 0.254 a | 68.695 ± 7.790 a |
| HG | 10.646 ± 0.386 b | 3.036 ± 0.123 b | 16.692 ± 4.022 b | |
| E | 16.599 ± 0.247 a | 1.738 ± 0.079 c | 44.427 ± 7.319 c | |
| C. moschata/Muscat | W | 14.700 ± 0.935 a | 2.598 ± 0.127 a | 76.143 ± 4.261 a |
| HG | 11.619 ± 0.406 b | 2.511 ± 0.222 a | 21.957 ± 3.207 b | |
| E | 7.171 ± 0.189 c | 1.983 ± 0.111 b | 25.681 ± 3.579 b |
W—aqueous extracts, HG—hydroglycolic extracts, E—ethanolic extracts; mean ± SD; means that do not share the same letter are significantly different with p < 0.05 within one species/variety.