| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Zea mays | Flower | -- | -- | * | |
| Vaccinium macrocarpon | Fruit | -- | -- | * | |
| Pisum sativum | Seed | -- | -- | * | |
| Pimpinella anisum | Seed | -- | 0.2 | 0.1 | * |
| Phaseolus vulgaris | Seed | -- | -- | * | |
| Phaseolus coccineus | Plant | -- | -- | J.S. Glasby Dict.Pls Containing 2ndary Metabolite. 1991. | |
| Persea americana | Fruit | -- | 0.76 | 1.0 | Jeffery B. Harborne and H. Baxter, eds. 1983. Phytochemical Dictionary. A Handbook of Bioactive Compounds from Plants. Taylor & Frost, London. 791 pp. |
| Malus domestica | Fruit | -- | -- | * | |
| Malus domestica | Fruit Juice | -- | -- | * | |
| Lycopersicon esculentum | Leaf | -- | -- | * | |
| Hordeum vulgare | Seed | -- | -- | * | |
| Helianthus annuus | Seed | -- | -- | * | |
| Glycine max | Seed | -- | -- | * | |
| Glycine max | Nodule | -- | -- | * | |
| Fucus vesiculosus | Plant | -- | -- | Bisset, N.G., ed. 1994. Herbal Drugs and Phytopharmaceuticals. CRC Press. Boca Raton, FL. 566 pp. | |
| Foeniculum vulgare | Seed | -- | 0.4 | 1.6 | Jim Duke's personal files. |
| Cucurbita pepo | Seed | -- | 0.03 | -1.2 | * |
| Coriandrum sativum | Fruit | -- | 0.03 | -1.0 | * |
| Citrus sinensis | Tissue Culture | -- | -- | Jim Duke's personal files. | |
| Ceratonia siliqua | Fruit | -- | -- | Leung, A. Y. and Foster, S. 1995. Encyclopedia of Common Natural Ingredients 2nd Ed. John Wiley & Sons, New York. 649 pp. |