| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Thymus funkii | Shoot | -- | -- | Vila, R., et al. 1995. Composition and study of the variability of the essential oil of Thymus funkii Cousson. Flav. & Fragr. J. 10(6): 379-383. | |
| Thymus capitatus | Shoot | -- | 21.0 | -0.5 | Biondi, D., Cianci, P., Geraci, C. and Ruberto, G. 1993. Antimicrobial Activity and Chemical Composition of Essential Oils from Sicilian Aromatic Plants. Flav. & Frag. J. 8: 331-7. |
| Tilia sp. | Flower | -- | -- | * | |
| Trifolium pratense | Flower | -- | -- | * | |
| Umbellularia californica | Plant | 10.0 | 40.0 | -0.6 | * |
| Vaccinium myrtillus | Fruit Juice | -- | 0.01 | * | |
| Vaccinium corymbosum | Fruit | -- | 0.02 | -0.7 | * |
| Vaccinium macrocarpon | Fruit | -- | -- | * | |
| Vanilla planifolia | Fruit | -- | -- | Leung, A.Y., Encyclopedia of Common Natural Ingredients Used in Food, Drugs, and Cosmetics, John Wiley & Sons, New York, 1980. | |
| Viola odorata | Leaf | -- | -- | * | |
| Viola odorata | Flower | 147.0 | 357.0 | -0.4 | * |
| Zea mays | Seed | -- | -- | * | |
| Zingiber officinale | Rhizome Essent. Oil | -- | -- | * |