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| Chemical Name | Dosage | Reference |
|---|---|---|
| TRANS-TRANS-5-ETHYL-4,6,7-TRITHIA-2,8-DECADIENE-4-S-OXIDE | not available | Duke, 1992 * |
| TROLOX | IC50 (uM) =1000 | Duke, 1992 * |
| URSOLIC-ACID | not available | Ringbom, T., Seguar, L., Noreen, Y., Perera, P., Bohlin, L. 1998. Ursolic Acid from Plantago major, a Selective Inhibitor of Cyclooxygenase-2 Catalyzed Prostaglandin Biosynthesis. J. Nat. Prod., 61(10): 1212-1215. |
| URUSHIOL | not available | Williamson, E. M. and Evans, F. J., Potter's New Cyclopaedia of Botanical Drugs and Preparations, Revised Ed., Saffron Walden, the C. W. Daniel Co., Ltd., Essex UK, 362 pp, 1988, reprint 1989. |
| ZINGERONE | not available | Duke, 1992 * |
| Plant Name | Common Name | Chemical Count | Total Parts Per Million |
|---|---|---|---|
| Helichrysum angustifolium | Everlasting; Immortelle | 1 | 0 |
| Hibiscus rosa-sinensis | Chinese hibiscus; Shoe-flower | 1 | 0 |
| Hibiscus sabdariffa | Roselle; Indian Sorrel; Jamaica Sorrel; Kharkadi; Red Sorrel; Sorrel; Malventee (Ger.); Rosella (Ger.); Acedera de Guinea (Sp.); Rosa de Jamaica (Sp.); Sereni (Sp.) | 1 | 16, 390 |
| Hippophae rhamnoides | Sallow Thorn; Sea Buckthorn; Yellow Spine | 3 | 204, 000 |
| Holarrhena pubescens | Tellicherry Bark; Zhi Xie Mu; Conessi; Kurchi | 4 | 45, 600 |
| Hordeum vulgare | Barley; Barleygrass | 4 | 2 |
| Houttuynia cordata | Fishwort; Dokudami; Yu Xing Cao | 3 | 0 |
| Humulus lupulus | Hops | 7 | 5, 000 |
| Hura crepitans | Sandbox Tree | 1 | 0 |
| Hyacinthus orientalis | Hyacinth | 1 | 6.900000095367432 |
| Hydnocarpus kurzii | True Chaulmoogra | 1 | 0 |
| Hydnocarpus wightiana | Hindi Chaulmoogra | 1 | 0 |
| Hydrangea arborescens | Smooth Hydrangea; Hydrangea | 2 | 0 |
| Hydrastis canadensis | Goldenseal | 1 | 110, 000 |
| Hypericum perforatum | Common St. Johnswort; Hypericum; Klamath Weed; St. John's-wort; Goatweed | 4 | 105, 000 |
| Hyptis capitata | Knobweed | 1 | 0 |
| Hyptis dilatata | not available | 1 | 2, 963 |
| Hyptis suaveolens | Wild Hops | 1 | 8 |
| Hyssopus officinalis | Hyssop | 7 | 204, 904 |
| Ilex paraguariensis | Mate; Paraguay Tea; South American Holly | 2 | 480, 000 |