Table 3.
Content of total polyphenols (mg GAE/1 g d. m) and anthocyanins (mg/100 g d. m) in potato juices without additives (control sample) and with additives fruit or vegetable concentrates.
| Concentrate | Variety of Potato Juice |
Polyphenol Content | Anthocyanin Content |
|---|---|---|---|
| control sample | Violet Queen | 5.65 ± 0.15 a | 61.0 ± 1.91 ab |
| lemon 10% | Violet Queen | 26.0 ± 1.54 c | 288.9 ± 8.54 d |
| lime 10% | Violet Queen | 24.8 ± 1.60 c | 148.4 ± 8.05 bc |
| rhubarb 10% | Violet Queen | 16.6 ± 0.56 b | 61.6 ± 1.05 ab |
| control sample | Mulberry Beauty | 6.07 ± 0.53 a | 24.9 ± 0.69 a |
| lemon 20% | Mulberry Beauty | 25.4 ± 1.97 c | 128.8 ± 1.09 bc |
| lime 20% | Mulberry Beauty | 20.7 ± 1.57 bc | 185.4 ± 10.40 c |
| rhubarb 20% | Mulberry Beauty | 19.7 ± 1.59 bc | 188.0 ± 11.77 c |
| control sample | Magenta Love | 4.27 ± 0.70 a | 23.9 ± 1.93 a |
| lemon 20% | Magenta Love | 22.1 ± 1.85 bc | 159.4 ± 10.41 bc |
| lime 20% | Magenta Love | 20.6 ± 1.88 bc | 142.4 ± 9.11 bc |
| rhubarb 20% | Magenta Love | 20.0 ± 0.70 bc | 132.9 ± 9.47 bc |
| LSD | 6.84 | 89.81 |
Data are expressed as the mean and standard deviation (± SD), n = 12; n = 6. Results in the same column followed by different letters indicate significant differences according to Duncan’s test at p < 0.05 between a variety of potato juices, as determined by two-way ANOVA. LSD—least significant difference.