Plant Allium cepa (Liliaceae) | Dr. Duke's Phytochemical and Ethnobotanical Databases

Common Names

Onion; Shallot

How this plant is used

Food

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List of plant chemicals.
Click on column headings to sort table by that column. *Unless otherwise noted all references are to (Duke, 1992)
Chemical Name	Activity Count	Plant Part	Low Parts Per Million	High Parts Per Million	Standard Deviation	Reference
TYROSINE	8	Bulb	290.0	3161.0	-1.00	USDA's Ag Handbook 8 and sequelae)
VALINE	3	Bulb	270.0	2943.0	-1.00	Duke, 1992 *
VANILLIC-ACID	24	Bulb	not available	258.0	1.00	Duke, 1992 *
VIT-B-6	0	Bulb	1.0	18.0	not available	USDA's Ag Handbook 8 and sequelae)
WATER	0	Bulb	866000.0	918000.0	0.78	Duke, 1992 *
WATER	0	Leaf	not available	922000.0	0.57	CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses
XYLITOL	10	Bulb	not available	not available	not available	Counsell, J. N., Roberton, D. J. 1976. Xylitol-A Sweetener Which is Kind to the Teeth. Food Process Ind., 45(54): 24-26.
XYLOSE	3	Bulb	not available	not available	not available	Sinha, A. 1959. Chemical Examination of Allium cepa. I. Glycosidic and Sugar Fractions. Indian J. Appl. Chem., 22: 89-91.
ZEAXANTHIN	5	Bulb	not available	not available	not available	Granado, F., Olmedilla, B., Blanco, I., Rojas-Hidalgo, E. 1992. Carotenoid Composition in Raw and Cooked Spanish Vegetables. J. Agr. Food Chem., 40(11): 2135-2140.
ZINC	77	Bulb	2.0	53.0	1.41	Duke, 1992 *
ZINC	77	Seed	not available	34.0	-0.32	Duke, 1992 *
ZIRCONIUM	0	Bulb	0.8	1.0	not available	Duke, 1992 *

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List of plant activities.
Click on column headings to sort table by that column. *Unless otherwise noted all references are to (Duke, 1992)
Activity	Chemical Count	Reference
COMT-Inhibitor	1	Duke, 1992 *
Contraceptive	2	Martindale's 28th
Convulsant	1	Jeffery B. Harborne and H. Baxter, eds. 1983. Phytochemical Dictionary. A Handbook of Bioactive Compounds from Plants. Taylor & Frost, London. 791 pp.
Copper-Antagonist	1	Challem, J., Berkson, Burt, and Smith, Melissa Dianne. 2000. Syndrome X - The complete nutritional program to prevent and reservse insulin resistance. John Wiley & Sons, New York. 272 pp. $24.95
Copper-Chelator	2	Duke, 1992 *
Cosmetic	2	Jeffery B. Harborne and H. Baxter, eds. 1983. Phytochemical Dictionary. A Handbook of Bioactive Compounds from Plants. Taylor & Frost, London. 791 pp.
COX-1-Inhibitor	2	Duke, 1992 *
COX-2-Inhibitor	7	Duke, 1992 *
Cyclooxygenase-Inhibitor	12	Duke, 1992 *
Cytochrome-P450-1A2-Inhibitor	1	Duke, 1992 *
Cytochrome-P450-2E1-Inhibitor	1	Duke, 1992 *
Cytoprotective	2	Newall, C. A., Anderson, L. A. and Phillipson, J. D. 1996. Herbal Medicine - A Guide for Health-care Professionals. The Pharmaceutical Press, London. 296pp.
Cytotoxic	5	Duke, 1992 *
Decalcifier	1	Merck 11th Edition
Deiodinase-Inhibitor	1	Jim Duke's personal files.
Deliriant	1	Davies, S., and Stewart, A. 1990. Nutritional Medicine. Avon Books, New York. 509pp.
Demulcent	2	Duke, 1992 *
Deodorant	1	Martindale's 29th
Depressant	2	Cooper-Driver, G. A., Chemical substances in plants toxic to animals, pp. 213-47 in Rechcigl, M., Jr., ed. CRC Handbook of Naturally Occurring Food Toxicants, CRC Press, Boca Raton, 1983, 339 pp.
Dermatitigenic	4	Jeffery B. Harborne and H. Baxter, eds. 1983. Phytochemical Dictionary. A Handbook of Bioactive Compounds from Plants. Taylor & Frost, London. 791 pp.