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Dr. Duke's Phytochemical and Ethnobotanical Databases
U.S. Department of Agriculture
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Tyrosinase-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
CUMINALDEHYDE ID50=0.05 mM *
GLABRIDIN *
KAEMPFEROL ID50=230 uM *
P-COUMARIC-ACID ID50=3,650 uM *
P-HYDROXYBENZALDEHYDE ID50=1.2 mM *
P-HYDROXYBENZALDEHYDE ID50=1,200 uM *
P-HYDROXYBENZYL-ALCOHOL ID50=650 uM *
PROTOCATECHUIC-ACID ID60=0.5 uM/ml *
QUERCETIN ID50=70 uM *
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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
Annona muricata Soursop 2 0
Anogeissus latifolia Gum Ghatti 1 0
Apium graveolens Celery 6 3, 000
Arachis hypogaea Groundnut; Peanut 3 48
Araucaria bidwillii Monkey puzzle 1 0
Arbutus unedo Arbutus; Strawberry Tree 1 54, 000
Arctium lappa Gobo; Great Burdock; Burdock 1 0
Arctostaphylos uva-ursi Bearberry; Uva Ursi 4 586, 060
Ardisia japonica Marlberry 1 0
Arisaema consanguineum Chinese Jack-In-The-Pulpit 1 0
Armoracia rusticana Horseradish 2 6
Artemisia absinthium Wormwood 2 0
Artemisia annua Qinghao; Sweet Annie; Annual Mugwort (GRIN); Annual Wormwood (GRIN); Sweet Wormwood (GRIN) 3 800
Artemisia dracunculus Tarragon 7 197
Artemisia herba-alba Desert Wormwood 1 0
Artemisia salsoloides 1 1, 000
Artocarpus altilis Breadfruit 1 0
Asclepias syriaca Milkweed 1 0
Asimina triloba Pawpaw 1 0
Aspalathus linearis Rooibos; Kaffree Tea; Red Bush Tea 6 190, 837.19999957085