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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
ACETALDEHYDE ID50=43 ug/ml *
ANACARDIC-ACID *
ANISALDEHYDE ID50=380-970 uM *
ANISALDEHYDE ID50=320 uM *
ANISALDEHYDE ID50=0.32 mM *
ANISE-ALCOHOL ID50=5,300 uM *
ANISIC-ACID ID50=680 uM *
ANISOLE ID50=7,100 uM *
ARBUTIN IC50=40 uM *
BENZALDEHYDE ID50=820 uM *
BENZALDEHYDE ID50=87 ug/ml *
BENZALDEHYDE ID50=830 uM *
BENZALDEHYDE ID50=0.82 mM *
BENZOIC-ACID ID50=710 uM *
BENZOIC-ACID ID50=640 uM *
CINNAMALDEHYDE ID50=970 uM *
CINNAMALDEHYDE ID50=129 ug/ml *
CINNAMIC-ACID ID50=700 uM *
CITRAL ID50=1.5 mM *
CITRAL ID50=1,500 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
Asparagus officinalis Asparagus 2 0
Astragalus membranaceus Huang-Chi; Huang Qi 2 0
Avena sativa Oats 3 310
Averrhoa carambola Carambola; Star Fruit 1 0
Azadirachta indica Neem 2 3, 000
Barosma betulina Buchu 1 0
Basella alba Vinespinach 2 0
Berberis vulgaris Barberry 2 0
Beta vulgaris Beet; Beetroot; Sugar Beet; Garden Beet 3 0
Borago officinalis Borage; Beebread; Beeplant; Talewort 2 0
Boswellia sacra Olibanum; Frankincense; Olibanum Tree; Weihrauchbaum (Ger.); Weihrauchpflanze (Ger.); arbol del incensio (Sp.); Oliban (Sp.) 1 0
Brassica nigra Black Mustard 2 0
Brassica oleracea Kohlrabi 3 100.07999999821186
Brassica oleracea var. botrytis l. Cauliflower 4 84
Brassica oleracea var. capitata l. Cabbage; Red Cabbage; White Cabbage 5 1, 227
Brassica oleracea var. gemmifera Brussels-Sprouts; Brussel-Sprout 2 74
Brassica oleracea var. italica Broccoli; Heading Broccoli; Sprouting Broccoli; Cape Broccoli; Purple Cauliflower; Asparagus Broccoli; Winter Broccoli; Calabrese 4 104
Brassica oleracea var. sabellica l. Kale; Curly Kale; Kitchen Kale; Scotch Kale 2 252
Brassica pekinensis Chinese Cabbage 1 7
Caesalpinia pulcherrima Bird Of Paradise 2 0