| # Activity | Chemical | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|---|
| 2 | ARSENIC | Tuber | -- | 0.05 | -1.39 | * |
| 47 | BETA-SITOSTEROL | Tuber | -- | -- | * | |
| 4 | BETA-SITOSTEROL-BETA-D-GLUCOSIDE | Tuber | -- | -- | * | |
| 28 | CALCIUM | Tuber | 870.0 | 3450.0 | -0.13 | * |
| 12 | COPPER | Tuber | 3.0 | 4.0 | -1.11 | * |
| 1 | D-GLUCOSE | Tuber | -- | -- | * | |
| 6 | IRON | Tuber | 70.0 | 340.0 | 1.88 | * |
| 65 | MAGNESIUM | Tuber | 390.0 | 410.0 | -0.95 | * |
| 14 | MANGANESE | Tuber | 5.0 | 27.0 | -0.41 | * |
| 3 | MUCILAGE | Tuber | -- | -- | * | |
| 6 | OCTACOSANOL | Plant | -- | -- | * | |
| 14 | POTASSIUM | Tuber | 8580.0 | 10600.0 | -0.36 | * |
| 8 | RUSCOGENIN | Tuber | -- | -- | * | |
| 1 | SODIUM | Tuber | 113.0 | 273.0 | -0.68 | * |
| 12 | STIGMASTEROL | Tuber | -- | -- | * | |
| 14 | SUCROSE | Tuber | -- | -- | * | |
| 3 | TRIACONTANOL | Plant | -- | -- | * | |
| 77 | ZINC | Tuber | 7.0 | 16.0 | -0.66 | * |