Table 1.
Total phenolics content and total anthocyanins content of buds, leaves, petioles, and stems of 11 leafy sweet potato varieties.
| Item | Total Phenolics Content (mg GAE/100 g fw) | Total Anthocyanins Content (mg/100 g fw) | ||||||
|---|---|---|---|---|---|---|---|---|
| Bud | Leaf | Petiole | Stem | Bud | Leaf | Petiole | Stem | |
| Variety | ||||||||
| GSC-2 | 231.87 ± 13.57b | 125.76 ± 2.36b | 32.35 ± 3.17b | 17.38 ± 2.36c | 1.75 ± 0.08d | 3.73 ± 0.06f | 0.88 ± 0.01f | 0.36 ± 0.11g |
| GCS-5 | 248.22 ± 14.85a | 148.36 ± 1.36a | 36.39 ± 1.29a | 32.69 ± 1.12a | 1.72 ± 0.45d | 3.22 ± 0.06f | 0.79 ± 0.07f | 0.45 ± 0.07g |
| Ziyang | 193.20 ± 2.58c | 123.97 ± 4.46b | 21.64 ± 1.01c | 23.03 ± 0.52b | 25.14 ± 0.85c | 82.91 ± 2.68b | 27.35 ± 0.92a | 13.88 ± 0.99a |
| GS-15-28 | 132.98 ± 11.23d | 53.19 ± 4.49fg | 10.70 ± 0.78e | 10.24 ± 1.18de | 11.40 ± 0.93d | 42.43 ± 3.31c | 10.99 ± 0.37d | 6.87 ± 0.11cd |
| GS-16-11 | 143.39 ± 5.15d | 100.78 ± 5.57c | 15.93 ± 1.27d | 15.59 ± 1.18c | 47.69 ± 0.53b | 80.02 ± 4.73b | 18.43 ± 1.58b | 8.94 ± 0.31b |
| GS-17-3 | 65.32 ± 3.41f | 56.17 ± 2.36fg | 7.37 ± 0.45g | 9.35 ± 0.45e | 2.04 ± 0.12d | 35.56 ± 2.80d | 6.41 ± 0.92e | 4.03 ± 0.26f |
| GS-17-5 | 109.93 ± 6.81e | 69.25 ± 6.93de | 9.21 ± 0.37fg | 12.62 ± 0.93d | 4.79 ± 0.11d | 33.60 ± 2.33d | 7.27 ± 0.06e | 4.40 ± 0.04ef |
| GS-17-10 | 80.93 ± 3.41f | 60.63 ± 3.09ef | 8.62 ± 0.21fg | 9.05 ± 1.12e | 5.04 ± 0.03d | 30.63 ± 0.14d | 7.39 ± 0.21e | 4.75 ± 0.07ef |
| GS-17-21 | 77.21 ± 4.64f | 48.43 ± 1.36g | 8.97 ± 1.62fg | 11.43 ± 2.58de | 2.65 ± 0.60d | 20.99 ± 0.53e | 6.81 ± 1.45e | 5.99 ± 1.72de |
| GS-17-22 | 112.16 ± 10.54e | 71.33 ± 7.93d | 9.33 ± 0.10fg | 11.58 ± 0.45de | 74.17 ± 18.48a | 109.60 ± 1.62a | 16.68 ± 0.39c | 9.04 ± 1.68b |
| GS-17-23 | 81.30 ± 1.58f | 62.11 ± 8.94ef | 9.92 ± 0.90f | 9.35 ± 0.77e | 4.64 ± 0.49d | 44.04 ± 9.15c | 10.01 ± 0.75d | 7.79 ± 0.11bc |
| p value | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 |
| Color | ||||||||
| Green | 240.04 ± 15.56A | 137.06 ± 12.50A | 34.37 ± 3.10A | 25.03 ± 8.55A | 1.74 ± 0.29B | 3.48 ± 0.30B | 0.82 ± 0.07B | 0.41 ± 0.09B |
| Green-purple | 111.84 ± 39.87B | 71.76 ± 24.28B | 11.30 ± 4.45B | 12.47 ± 4.40B | 19.52 ± 25.30A | 51.15 ± 27.32A | 12.63 ± 7.07A | 7.40 ± 3.13A |
| p value | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 |
The variety GSC-2 and GCS-5 with green aerial parts, and other nine varieties with green-purple aerial parts. For each variety, different lowercase letters (a, b, c, d, e, f, g) in a column indicate significant differences among variety means (p < 0.001). Different uppercase letters (A, B) in a column indicate significant differences among color means (p < 0.001).