| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Psidium guajava | Fruit | -- | 262000.0 | 1.4 | * |
| Ligustrum lucidum | Fruit Essent. Oil | -- | 189500.0 | Leung, A. Y. and Foster, S. 1995. Encyclopedia of Common Natural Ingredients 2nd Ed. John Wiley & Sons, New York. 649 pp. | |
| Telosma cordata | Flower | -- | 1600.0 | 1.0 | K. Furukawa, T. Arai, S. Hashimoto, (1993); Volatile components of Telosma cordata Merrill flowers, Flavour Fragr. J., Vol 8, 221-223. |
| Ananas comosus | Fruit | 3.0 | 120.0 | -0.7 | * |
| Plectranthus coleoides | Shoot | -- | 12.0 | 1.0 | Buchbauer, G., Jorovetz, L., Wasicky, M. and Nikiforov, A. 1993. Volatile Constituents of the Headspace and Essential Oil of Plectranthus coleoides Marginatus (Labiatae). J. Ess. Oil Res. 5: 311-313. |
| Rheum palmatum | Rhizome | -- | 5.0 | * | |
| Aralia cordata | Stem | -- | 3.0 | * | |
| Ephedra sinica | Shoot | -- | 1.0 | -1.0 | * |
| Citrus sinensis | Fruit Juice | 0.01 | 0.58 | * | |
| Asimina triloba | Fruit | 0.008 | 0.143 | -0.7 | * |
| Carthamus tinctorius | Flower | 0.04 | 0.14 | -1.0 | * |
| Cucumis melo | Petiole | -- | -- | * | |
| Zea mays | Silk Stigma Style | -- | -- | * | |
| Camellia sinensis | Leaf | -- | -- | * | |
| Pueraria montana | Fruit Essent. Oil | -- | -- | * | |
| Malus domestica | Plant | -- | -- | * | |
| Capsicum annuum | Fruit | -- | -- | * | |
| Malus domestica | Fruit | -- | -- | * | |
| Zingiber officinale | Rhizome | -- | -- | * | |
| Ficus carica | Fruit | -- | -- | * |