Table 3.
Analysis of bioactive compounds of tuber, leaf and flower Tropaeolum pentaphyllum Lam freeze-dried
| Parameters | T. pentaphyllum | T. pentaphyllum | T. pentaphyllum |
|---|---|---|---|
| Tuber | Leaf | Flower | |
| Chlorophyll “a” (mg/g dw) | Na | 4.25 ± 0.44a | 0.51 ± 0.02b |
| Chlorophyll “b” (mg/g dw) | Na | 1.62 ± 0.20a | 0.44 ± 0.01b |
| Total Chlorophyll (mg/g dw) | Na | 5.87 ± 0.61a | 0.95 ± 0.02b |
| Lutein (µg/g dw) | 0.22 ± 0.02c | 642.50 ± 4.56a | 243.23 ± 0.89b |
| Zeaxanthin (µg/g dw) | Nq | 23.20 ± 0.82a | 14.23 ± 0.04b |
| β-cryptoxanthin (µg/g dw) | Nq | 21.71 ± 0.09a | 2.58 ± 0.03b |
| α-carotene (µg/g dw) | 0.063 ± 0.00c | 8.14 ± 0.02a | 3.61 ± 0.02b |
| β-carotene (µg/g dw) | 4.20 ± 0.02c | 467.74 ± 2.39a | 132.06 ± 0.76b |
| Total carotenoids (µg/g dw) | 4.48 | 1163.29 | 395.71 |
| α-tocopherol (µg/g dw) | Nd | 0.09 ± 0.05b | 0.28 ± 0.07a |
| γ-tocopherol (µg/g dw) | Nd | 0.03 ± 0.02b | 0.10 ± 0.04a |
| Vitamin C (µg/g dw) | 26 ± 0.01c | 160 ± 0.30a | 82 ± 0.10b |
| Phenolic compounds | |||
| (GAE/g dry sample) | 2.79 ± 0.02c | 6.83 ± 0.09b | 21.30 ± 0.01a |
| Luteolin (µg/g dw) | Nd | 1124.06 ± 9.75a | 408.95 ± 0.14b |
| Myricetin (µg/g dw) | Nd | 41.87 ± 0.96a | 5.43 ± 0.01b |
| Quercetin (µg/g dw) | 30 ± 0.10c | 3798.61 ± 37.57a | 840.39 ± 10.99b |
| Kaempferol (µg/g dw) | Nd | Nd | 20 ± 0.09b |
Mean ± SD (standard deviation) of three replicates (n = 3)
(ZeaxanthinLOQ = 1.59 µg/g; β-CryptoxanthinLOQ = 0.0451 µg/g; α-tocopherolLOQ = 0.0137 µg/g; γ-tocopherolLOQ = 0.0265 µg/g; LuteolinLOQ = 1.77 µg/g; MyricetinLOQ = 0.0023 µg/g; KaempferolLOQ = 0.0027 µg/g)
Na not applied, Nd not detected
Different letters on the same line represent significant difference p < 0.05 by Tukey’s test