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Dr. Duke's Phytochemical and Ethnobotanical Databases
U.S. Department of Agriculture
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NO-Inhibitor

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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
(+)-CATECHIN IC11=250 uM *
AJOENE IC50=2.5-5 uM *
ALLICIN IC50=2.5-5 uM *
ANDROGRAPHOLIDE IC50=36 uM *
BOLDINE *
BROUSSOCHALCONE-A *
CITRAL *
CURCUMIN *
DELPHINIDIN IC78=250 uM *
DIOSMETIN EC50=19 uM *
EMODIN IC50=60.7 uM *
EPICATECHIN *
GALLIC-ACID IC-26=250 uM *
GAMMA-TOCOPHEROL *
INDOLE-3-CARBINOL *
KAEMPFEROL IC50=13.9 uM *
LUTEOLIN *
QUERCETIN IC50=20 uM *
QUERCETIN IC>50=125 uM *
TOCOPHEROL *
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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
Pimpinella anisum Anise; Sweet Cumin 2 2, 500
Pinus mugo Dwarf Pine; Swiss Mountain Pine 2 0
Pinus sylvestris Scotch Pine 4 0
Piper nigrum Black Pepper; Pepper; White Pepper 3 0
Pistacia lentiscus Mastic; Chios Mastictree; Mastictree; Mastixbaum (Ger.); Lentisco (Sp.) 2 0
Pisum sativum Pea 3 522
Plantago major Common Plantain 1 0
Plantago ovata Blond Psyllium; Ispaghula; Spogel Seeds; Psyllium; Indian Plantago 1 0
Plumeria acutifolia Frangipani 2 0
Podophyllum hexandrum Himalayan Mayapple 2 24, 000
Podophyllum peltatum Mayapple 3 100, 000
Podophyllum pleianthum Chinese Mayapple 2 0
Polygonum aviculare Prostrate Knotweed 2 0
Polygonum hydropiper Common Smartweed 3 0
Polygonum hydropiperoides Mild Water Pepper 3 0
Polygonum multiflorum Chinese Cornbind; Fleeceflower; Fo Ti; He Shou Wu; Chinese Knotweed 2 0
Populus nigra Black Poplar 2 0
Populus tacamahacca Balm Of Gilead 2 0
Portulaca oleracea Purslane; Verdolaga 1 4, 618
Prosopis juliflora Mesquite 1 0