| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Aloe vera | Juice | -- | -- | Yamaguchi, I., Mega, N., Sanada, H. 1993. Components of the Gel of Aloe vera (L.) Burm. F. Biosci Biotech Biochem 57(8): 1350-1352. | |
| Carica papaya | Seed Oil | -- | -- | Jim Duke's personal files. | |
| Citrullus lanatus | Fruit Juice | -- | -- | * | |
| Cocos nucifera | Seed Oil | -- | -- | Jim Duke's personal files. | |
| Helianthus annuus | Seed | -- | -- | * | |
| Magnolia denudata | Leaf Essent. Oil | -- | -- | * | |
| Malus domestica | Seed | -- | -- | Fathy, M. M., Abd El Megid, R. M. 1995. A Comparative Study of the Lipid Contents and the Antimicrobial Activity of Certain Rosaceous Seeds. Zagazig J Pharm Sci, 4(2): 121-127. | |
| Melissa officinalis | Tissue Culture | -- | -- | Gbolade, A.A. and Lockwood, G.B. 1991. The Constituents of Melissa officinalis L. Cultures. J. Ess. Oil Res., 3: 111-114. | |
| Oenanthe javanica | Shoot | -- | -- | * | |
| Pastinaca sativa | Seed | -- | -- | * | |
| Petasites hybridus | Root | -- | -- | * | |
| Piper nigrum | Fruit | -- | -- | * | |
| Plantago ovata | Seed Coat | -- | -- | * | |
| Sambucus nigra | Flower Essent. Oil | -- | -- | * | |
| Scutellaria baicalensis | Root Essent. Oil | -- | -- | * | |
| Vanilla planifolia | Fruit | -- | -- | * |