Table 1.
Antifeedant activities of lignans from stem bark of Zanthoxylum armatum.
| Compound | Antifeedant Index (%, Mean ± SD) | EC50 (ppm) | ||||
|---|---|---|---|---|---|---|
| 25 ppm | 74 ppm | 222 ppm | 667 ppm | 2000 ppm | ||
| Asarinin (1) | 49.45 ± 3.78 | 55.51 ± 1.79 | 68.03 ± 4.22 | 70.72 ± 2.83 | 75.83 ± 3.69 | 25.64 ± 3.21 |
| Fargesin (2) | 40.65 ± 4.51 | 52.12 ± 2.31 | 60.71 ± 3.21 | 75.21 ± 1.39 | 81.96 ± 2.93 | 63.24 ± 4.83 |
| Horsfieldin (3) | 34.99 ± 5.32 | 48.91 ± 3.37 | 73.74 ± 3.04 | 73.79 ± 6.01 | 81.12 ± 3.33 | 68.39 ± 5.58 |
| Eudesmin (4) | 35.73 ± 4.37 | 41.28 ± 3.07 | 43.57 ± 2.16 | 55.97 ± 3.46 | 69.82 ± 3.56 | 245.72 ± 3.74 |
| Planispine (5) | - | - | - | - | - | - |
| Planispine B (6) | 29.76 ± 3.16 | 45.95 ± 5.11 | 47.79 ± 3.27 | 58.38 ± 3.17 | 68.64 ± 5.23 | 219.84 ± 4.69 |
| Yangambin (7) | 37.80 ± 3.12 | 49.71 ± 2.61 | 50.82 ± 4.27 | 60.95 ± 3.26 | 66.96 ± 4.16 | 132.50 ± 3.61 |
| Acuminatolide (8) | 39.15 ± 1.21 | 41.36 ± 3.83 | 54.51 ± 2.18 | 77.35 ± 3.65 | 74.76 ± 3.93 | 102.12 ± 2.40 |
| Salicifoliol (9) | 6.82 ± 3.47 | 12.52 ± 2.15 | 24.78 ± 3.17 | 30.46 ± 5.23 | 39.06 ± 4.17 | 1069.20 ± 3.83 |
| Magnolone (10) | 38.93 ± 4.29 | 47.52 ± 1.91 | 62.16 ± 3.93 | 71.94 ± 3.19 | 74.14 ± 3.95 | 78.37 ± 3.44 |
| Magnone A (11) | 21.66 ± 3.91 | 28.99 ± 3.85 | 32.76 ± 4.33 | 43.53 ± 2.77 | 56.60 ± 5.06 | 1203.53 ± 3.95 |
| Toosendanin * | 32.32 ± 2.28 | 52.45 ± 3.27 | 69.52 ± 2.47 | 76.54 ± 3.62 | 86.27 ± 3.51 | 71.69 ± 3.13 |
* represents the positive control. The antifeedant index of the blank control is 0.