Table 1.
Nutritional report in percentage of lipid composition, total phenols, antioxidant content, and quercetin content of the different diets employed.
| Component | ND | FD | FD + HAP | FD + SDAP | FD + DAP |
|---|---|---|---|---|---|
| Carbohydrates (%) | 69.4 | 57.0 | 59.8 | 57.6 | 56.2 |
| Proteins (%) | 21.0 | 17.6 | 12.5 | 18.2 | 17.3 |
| Lipids (%) | 1.8 | 16.8 | 20.2 | 16.4 | 17.5 |
| Water (%) | 6.0 | 15.3 | 19.4 | 18.3 | 12.2 |
| Ash (%) | 6.0 | 5.1 | 4.8 | 4.8 | 5.1 |
| Fiber (%) | 2.8 | 3.5 | 2.8 | 3.0 | 3.9 |
| Myristic acid (14:0) | 1.6 | 0.1 | 1.1 | 0.0 | 0.1 |
| Palmitoleic acid (16:1) | 0.0 | 0.0 | 1.5 | 4.6 | 1.4 |
| Palmitic acid (16:0) | 40.0 | 14.0 | 14.1 | 38.9 | 29.7 |
| Linoleic acid (18:2) | 11.6 | 34.0 | 31.5 | 15.5 | 28.2 |
| Oleic acid (18:1) | 29.8 | 44.4 | 39.4 | 32.0 | 19.0 |
| Stearic acid (18:0) | 9.7 | 7.5 | 6.5 | 9.0 | 7.3 |
| Total phenols | 0.0 | 0.0 | 1.6 ± 0.5 | 2.0 ± 0.1 | 1.8 ± 0.1 |
| Antioxidant activity | 0.0 | 0.0 | 0.2 ± 0.02 | 0.3 ± 0.1 | 0.2 ± 0.02 |
| Q. rutinoside | 0.0 | 0.0 | 16.4 ± 7.2 | 19.2 ± 4.3 | 29.0 ± 1.4 |
| Q. galactoside | 0.0 | 0.0 | 55.9 ± 9.1 | 93.8 ± 16.8 | 46.0 ± 4.5 |
| Q. glucoside | 0.0 | 0.0 | 10.6 ± 5.8 | 29.9 ± 5.0 | 10.2 ± 0.4 |
| Q. xyloside | 0.0 | 0.0 | 7.9 ± 4.4 | 16.3 ± 2.8 | 8.9 ± 0.2 |
| Q. arabinoside | 0.0 | 0.0 | 15.6 ± 4.6 | 29.7 ± 5.7 | 20.9 ± 1.1 |
| Q. rhamnoside | 0.0 | 0.0 | 10.2 ± 3.4 | 14.5 ± 3.3 | 14.1 ± 0.9 |
ND, normal diet; FD, fat diet; HAP, healthy apple peel; SDAP, sun damaged apple peel; DAP, dehydrated apple peel. All lipid components have a methyl ester conjugation. Total phenols and antioxidant capacity expressed with mg eq. chlorogenic acid/sample g. The quercetin glycoside expressed with µg/sample g.