An official website of the United States government.
Common Names
Onion; Shallot
How this plant is used
Food
| Chemical Name | Activity Count | Plant Part | Low Parts Per Million | High Parts Per Million | Standard Deviation | Reference |
|---|---|---|---|---|---|---|
| OLEIC-ACID | 18 | Seed | not available | 46800.0 | -0.59 | Wealth of India. |
| OLEIC-ACID | 18 | Seed Oil | 260000.0 | 292900.0 | -0.15 | Duke, 1992 * |
| OXALIC-ACID | 9 | Bulb | not available | 10.0 | not available | Duke, 1992 * |
| OXALIC-ACID | 9 | Leaf | not available | not available | not available | Gad, S. S., Esmat El-Zalaki, M., Hohamed, M. S., Mohasseb, S. Z. 1982. Oxalate Content of Some Leafy Vegetables and Dry Legumes Consumed Widely in Egypt. Food Chem., 8(3): 169-177. (Coll. Agric. Alexandria Univ. Ale.) |
| P-COUMARIC-ACID | 25 | Bulb | not available | not available | not available | Duke, 1992 * |
| P-COUMARIC-ACID | 25 | Leaf | not available | not available | not available | Das, V. S. R., Rao, J. V. S. 1964. Phenolic Acids of Onion Plant. Curr. Sci., 33(15): 471-472. |
| P-COUMARIC-ACID | 25 | Root | not available | not available | not available | Das, V. S. R., Rao, J. V. S. 1964. Phenolic Acids of Onion Plant. Curr. Sci., 33(15): 471-472. |
| P-CYMENE | 16 | Fruit Juice | not available | not available | not available | Schmidt, N. E., et. al. 1996. Rapid Extraction Method of Quantitating the Lachrymatory Factor of Onion Using Gas Chromatography. J. Agric. Food Chem., 44(9): 2690-2693. |
| P-HYDROXY-BENZOIC-ACID | 13 | Bulb | not available | 107.0 | 1.00 | Duke, 1992 * |
| P-HYDROXYBANZOIC-ACID | 0 | Bulb | not available | 107.0 | not available | Duke, 1992 * |
| PAEONIDIN-GLYCOSIDE | 0 | Bulb | not available | not available | not available | Williamson, E. M. and Evans, F. J., Potter's New Cyclopaedia of Botanical Drugs and Preparations, Revised Ed., Saffron Walden, the C. W. Daniel Co., Ltd., Essex UK, 362 pp, 1988, reprint 1989. |
| PALMITIC-ACID | 13 | Bulb | 240.0 | 2325.0 | -1.00 | Duke, 1992 * |
| PALMITIC-ACID | 13 | Seed | not available | 13140.0 | -0.43 | Wealth of India. |
| PALMITIC-ACID | 13 | Seed Oil | not available | 73000.0 | -0.72 | Duke, 1992 * |
| PANTOTHENIC-ACID | 11 | Bulb | 1.0 | 16.0 | 1.00 | USDA's Ag Handbook 8 and sequelae) |
| PECTIN | 24 | Bulb | not available | not available | not available | Leung, A. Y. and Foster, S. 1995. Encyclopedia of Common Natural Ingredients 2nd Ed. John Wiley & Sons, New York. 649 pp. |
| PELARGONIDIN-MONOGLYCOSIDE | 0 | Bulb | not available | not available | not available | Fuleki, T. 1969. The Anthocyanins of Strawberry, Rhubarb, Radish, and Onion. J. Food Sci., 34(4): 365-369. |
| PENTOSAN | 0 | Bulb | not available | not available | not available | Duke, 1992 * |
| PEROXIDASE | 0 | Bulb | not available | not available | not available | Duke, 1992 * |
| PHENYLALANINE | 7 | Bulb | 300.0 | 3270.0 | -1.00 | USDA's Ag Handbook 8 and sequelae) |
| Activity | Chemical Count | Reference |
|---|---|---|
| Neuroprotective | 3 | Duke, 1992 * |
| Neurotoxic | 1 | Jeffery B. Harborne and H. Baxter, eds. 1983. Phytochemical Dictionary. A Handbook of Bioactive Compounds from Plants. Taylor & Frost, London. 791 pp. |
| Neurotransmitter | 1 | Duke, 1992 * |
| NF-kB-Inhibitor | 4 | Duke, 1992 * |
| NO-Genic | 1 | Duke, 1992 * |
| NO-Inhibitor | 3 | Duke, 1992 * |
| NO-Scavenger | 1 | Duke, 1992 * |
| NO-Synthase-Inhibitor | 1 | Duke, 1992 * |
| Occuloirritant | 2 | Duke, 1992 * |
| Odontolytic | 1 | Zebovitz, T. C. Ed. 1989. Part VII. Flavor and Fragrance Substances, in Keith L. H. and Walters, D.B., eds. Compendium of Safety Data Sheets for Research and Industrial Chemicals. VCH Publishers, New York. 3560-4253. |
| Ophthalmic-Antialkali | 1 | Jeffery B. Harborne and H. Baxter, eds. 1983. Phytochemical Dictionary. A Handbook of Bioactive Compounds from Plants. Taylor & Frost, London. 791 pp. |
| Ornithine-Decarboxylase-Inhibitor | 4 | Hagerman, A.E. Tannin-Protein Interactions. Phenolic Compounds in Food and Their Effects on Health, Ch.19. |
| Osmoregulator | 1 | Duke, 1992 * |
| Osteogenic | 1 | Davies, S., and Stewart, A. 1990. Nutritional Medicine. Avon Books, New York. 509pp. |
| Osteolytic | 1 | Duke, 1992 * |
| Oviposition-Stimulant | 1 | Jeffery B. Harborne and H. Baxter, eds. 1983. Phytochemical Dictionary. A Handbook of Bioactive Compounds from Plants. Taylor & Frost, London. 791 pp. |
| Ovulant | 1 | Duke, 1992 * |
| Oxidant | 2 | Larson, R.A. 1987. Review Article Number 30. The Antioxidants of Higher Plants. Phytochemistry. 27: 969-978. |
| P450-Inducer | 1 | Father Nature's Farmacy: The aggregate of all these three-letter citations. |
| P450-Inhibitor | 1 | Father Nature's Farmacy: The aggregate of all these three-letter citations. |