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| Chemical Name | Dosage | Reference |
|---|---|---|
| THUJONE | not available | J. Ess. Oil Res. 7: 271. |
| THYMOHYDROQUINONE | MIC=6.25-100 ug/ml | Duke, 1992 * |
| THYMOL | MIC=50-400 ug/ml | Duke, 1992 * |
| THYMOQUINONE | not available | Farnsworth, N.R. and Cordell, G.A. A Review of Some Biologically Active Compounds Isolated From Plants as Reported in the 1974-1975 Literature. J. Nat. Prod. 39: 420, 1976. |
| TIN | not available | Duke, 1992 * |
| TOMATINE | not available | Duke, 1992 * |
| TRACHINODIOL-7-BETA-ACETATE | not available | Duke, 1992 * |
| TRACHINODIOL-DIACETATE | not available | Duke, 1992 * |
| TRACHINOL | not available | Duke, 1992 * |
| TRANS-ASARONE | not available | Duke, 1992 * |
| TRANS-ISOASARONE | not available | Duke, 1992 * |
| TRICROZARIN | not available | Duke, 1992 * |
| TROPOLONE | not available | Duke, 1992 * |
| TUBEROSIN | 250 u/ml | Wagner & Wolff, eds. 1977. New Natural Products (RS164. I56. 176) |
| ULIGINOSIN | not available | Duke, 1992 * |
| UMBELLIFERONE | not available | Jeffery B. Harborne and H. Baxter, eds. 1983. Phytochemical Dictionary. A Handbook of Bioactive Compounds from Plants. Taylor & Frost, London. 791 pp. |
| URESIN | not available | Duke, 1992 * |
| URSOLIC-ACID | not available | Duke, 1992 * |
| VANILLIC-ACID | 1.5-15 mg/ml | Recio, M. C., Rios, J. L., and Villar, A., A review of some antimicrobial compounds isolated from medicinal plants reported in the literature 1978-1988, Phytotherapy Research, 3(4), 1989, 117-125. |
| VERBASCOSIDE | not available | Duke, 1992 * |
| Plant Name | Common Name | Chemical Count | Total Parts Per Million |
|---|---|---|---|
| Plantago ovata | Blond Psyllium; Ispaghula; Spogel Seeds; Psyllium; Indian Plantago | 4 | 0 |
| Plantago psyllium | Psyllium | 5 | 21 |
| Platanus accrifolia | not available | 1 | 18, 000 |
| Platanus acerifolia | not available | 1 | 18, 000 |
| Platanus occidentalis | not available | 1 | 17, 500 |
| Platanus orientalis | not available | 1 | 17, 500 |
| Platanus vulgaris | not available | 1 | 0 |
| Platonia insignis | Bakuri; Pacouri | 1 | 2, 380 |
| Platycodon grandiflorum | Balloon Flower; Chieh-Keng; Jie-Geng | 1 | 0 |
| Plectranthus amboinicus | Amboini Coleus; Country Borage; Cuban Oregano; French Thyme; Indian Borage; Soup Mint; Spanish Thyme; Mexican Mint | 4 | 6, 897, 160 |
| Plectranthus barbatus | Forskohl's Coleus; Indian Coleus; False Boldo | 2 | 717, 000 |
| Plectranthus coleoides | not available | 2 | 335 |
| Plectranthus incanus | Lal Agada | 2 | 95 |
| Plectranthus trichocarpus | not available | 1 | 0 |
| Plectranthus urticifolius | not available | 1 | 0 |
| Pluchea carolinensis | Pito sico; Santa maria | 1 | 0 |
| Plumeria acutifolia | Frangipani | 9 | 58, 500 |
| Plumeria obtusa | not available | 1 | 3.4000000953674316 |
| Podophyllum hexandrum | Himalayan Mayapple | 3 | 12, 000 |
| Podophyllum peltatum | Mayapple | 5 | 50, 000 |