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Dr. Duke's Phytochemical and Ethnobotanical Databases
U.S. Department of Agriculture

Biological Activity Collagenic

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List of activity chemicals.
Click on column headings to sort table by that column. *Unless otherwise noted all references are to (Duke, 1992)
Chemical Name Dosage Reference
ANTHOCYANIDINS *
ASCORBIC-ACID *
ASIATIC-ACID *
AUCUBIN *
PROANTHOCYANIDINS *
ZINC *
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List of Activity Plants.
Click on column headings to sort table by that column.
Plant Name Common Name Chemical Count Total Parts Per Million
Hylocereus guatemalensis Guatemala Cereus; Nopalito De Guatemala 1 1, 030
Hylocereus undatus Night-Blooming Cereus; Nopalito De Noche; Strawberry Pear; Belle-of-the-Night; Queen-of-the-Night 1 2, 575
Hyoscyamus niger Henbane 1 48
Hypericum perforatum Common St. Johnswort; Hypericum; Klamath Weed; St. John's-wort; Goatweed 2 608, 557.5
Illicium verum Star Anise; Chinese Star Anise; Chinesischer Sternanis (Ger.); Sternanis (Ger.); anis de China (Sp.); anis estrellado (Sp.) 1 0
Inga edulis Guaba; Icecream Bean 1 710
Inula helenium Elecampane 2 23.90000009536743
Ipomoea aquatica Swamp Cabbage; Water Spinach 2 14, 784
Ipomoea batatas Sweet Potato 2 5, 431
Iris x germanica Orris 1 9, 930
Isatis tinctoria Dyer's Woad 1 40
Juglans cinerea Butternut 1 37
Juglans nigra Black Walnut 2 46
Juglans regia English Walnut 2 28, 082
Juncus effusus Rush 1 38
Juniperus communis Common Juniper; Juniper 2 1, 200
Juniperus virginiana Red Cedar 1 317
Jussiaea repens Jussiaeae Herba; Pond Dragon 1 80
Justicia pectoralis Angel Of Death; Bolek Hena; Curia 1 5, 601
Krameria triandra Rhatany 1 0