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| Chemical Name | Dosage | Reference |
|---|---|---|
| HUMULINIC-ACID | not available | Duke, 1992 * |
| HUMULONE | MIC=10-200 ug/ml | Duke, 1992 * |
| HYDNOCARPIC-ACID | not available | Merck 11th Edition |
| HYDRASTINE | not available | Duke, 1992 * |
| HYDROQUINONE | not available | Jeffery B. Harborne and H. Baxter, eds. 1983. Phytochemical Dictionary. A Handbook of Bioactive Compounds from Plants. Taylor & Frost, London. 791 pp. |
| HYPERFORIN | not available | Duke, 1992 * |
| HYPERICIN | not available | Duke, 1992 * |
| HYPERIN | not available | Duke, 1992 * |
| HYPEROSIDE | MIC=250-500 ug/ml | Planta Medica, 57: A43, 1991. |
| IMANINE | not available | Newall, C. A., Anderson, L. A. and Phillipson, J. D. 1996. Herbal Medicine - A Guide for Health-care Professionals. The Pharmaceutical Press, London. 296pp. |
| INDOLE | MBC=800 ug/ml | Duke, 1992 * |
| INDOLE | MIC=800 ug/ml | Muroi, H. and Kubo, I. 1993. Combination Effects of Antibacterial Compounds in Green Tea Flavor against Streptococcus mutans. J. Agric. Food Chem. 41: 1102-1105. |
| INTEGERRINE | not available | Jeffery B. Harborne and H. Baxter, eds. 1983. Phytochemical Dictionary. A Handbook of Bioactive Compounds from Plants. Taylor & Frost, London. 791 pp. |
| IODINE | not available | Duke, 1992 * |
| ISOALANTOLACTONE | not available | Duke, 1992 * |
| ISODOMEDONE | not available | Duke, 1992 * |
| ISODONAL | not available | Duke, 1992 * |
| ISOHUMULONE | not available | Duke, 1992 * |
| ISOMAGNOLOL | not available | Duke, 1992 * |
| ISOMANGOSTIN | not available | Duke, 1992 * |
| Plant Name | Common Name | Chemical Count | Total Parts Per Million |
|---|---|---|---|
| Rhododendron falconeri | not available | 1 | 0 |
| Rhododendron ferrugineum | Rusty-Leaved Alpenrose | 4 | 0 |
| Rhododendron grande | not available | 1 | 0 |
| Rhododendron ponticum | Pontic Alpenrose | 10 | 120, 000 |
| Rhodomyrtus tomentosa | not available | 1 | 6 |
| Rhodymenia palmata | Dulse | 2 | 153 |
| Rhus coriaria | Sicilian Sumac; Sumac; Tanner's Sumac | 9 | 840, 000 |
| Rhus glabra | Smooth Sumac | 2 | 270, 006 |
| Rhus toxicodendron | Poison Ivy | 3 | 0 |
| Rhynchosia minima | Burn Mouth Vine | 2 | 0 |
| Ribes nigrum | Black Currant | 37 | 164, 114 |
| Ribes rubrum | Red Currant; White Currant | 8 | 68, 528 |
| Ribes uva-crispa | Gooseberry | 10 | 19, 379 |
| Ricinus communis | Castorbean | 13 | 2, 380 |
| Robinia pseudoacacia | Black Locust | 12 | 326, 000 |
| Rollinia mucosa | Biriba; Lancewood | 1 | 2, 900 |
| Rosa canina | Rose; Dogbrier; Dog Rose | 21 | 774, 105 |
| Rosa centifolia | Cabbage Rose | 11 | 1, 200 |
| Rosa damascena | Damask Rose | 20 | 15, 000 |
| Rosa davurica | not available | 1 | 70 |