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 |
|---|---|---|---|---|---|---|
| PHLOROGLUCINOL | 8 | Bulb | not available | 100.0 | not available | Duke, 1992 * |
| PHLOROGLUCINOL-CARBOXYLIC-ACID | 0 | Bulb | not available | 100.0 | not available | Hermann, K. 1958. Flavonols and Phenols of the Onion (Allium cepa). Arch. Pharm. (Weinheim), 291: 238-247. |
| PHOSPHORUS | 4 | Bulb | 275.0 | 4038.0 | -1.00 | Duke, 1992 * |
| PHOSPHORUS | 4 | Leaf | 310.0 | 5513.0 | 0.10 | Duke, 1992 * |
| PHYTOHORMONE | 0 | Bulb | not available | not available | not available | Duke, 1992 * |
| PHYTOSTEROLS | 2 | Bulb | 150.0 | 1455.0 | 1.00 | Duke, 1992 * |
| POLYSACCHARIDES | 0 | Bulb | 100000.0 | 400000.0 | not available | Duke, 1992 * |
| POTASSIUM | 14 | Bulb | 1514.0 | 22164.0 | 1.00 | Duke, 1992 * |
| PROLINE | 0 | Bulb | 370.0 | 4033.0 | -1.00 | USDA's Ag Handbook 8 and sequelae) |
| PROP-CIS-ENYL-PROPYL-DISULFIDE | 0 | Bulb | not available | not available | not available | Kimura, K., Nishimura, H., Kimura, I., Iwata, I., Mizutani, J. 1984. Flavor Components of Roasted Onion. I. Changes in Flavor Components of Onion by Roasting. Nippon Eiyo Shokuryo Gakkaishi, 37(4): 343-347. |
| PROP-CIS-ENYL-PROPYL-TRISULFIDE | 0 | Bulb | not available | not available | not available | Kimura, K., Nishimura, H., Kimura, I., Iwata, I., Mizutani, J. 1984. Flavor Components of Roasted Onion. I. Changes in Flavor Components of Onion by Roasting. Nippon Eiyo Shokuryo Gakkaishi, 37(4): 343-347. |
| PROP-TRANS-ENYL-PROPYL-DISULFIDE | 0 | Bulb | not available | not available | not available | Kimura, K., Nishimura, H., Kimura, I., Iwata, I., Mizutani, J. 1984. Flavor Components of Roasted Onion. I. Changes in Flavor Components of Onion by Roasting. Nippon Eiyo Shokuryo Gakkaishi, 37(4): 343-347. |
| PROP-TRANS-ENYL-PROPYL-TRISULFIDE | 0 | Bulb | not available | not available | not available | Kimura, K., Nishimura, H., Kimura, I., Iwata, I., Mizutani, J. 1984. Flavor Components of Roasted Onion. I. Changes in Flavor Components of Onion by Roasting. Nippon Eiyo Shokuryo Gakkaishi, 37(4): 343-347. |
| PROPAN-1-OL | 0 | Bulb | not available | not available | not available | Duke, 1992 * |
| PROPANAL | 0 | Bulb | not available | not available | not available | Wealth of India. |
| PROPANE-1-THIOL | 0 | Bulb | not available | not available | not available | Wilkens, W. F. 1962. The Isolation and Identification of the Lachrymogenic Compound of Onion. Diss. Abstr. Int. B, 22: 3978. |
| PROPIONAL | 0 | Bulb | not available | not available | not available | Wilkens, W. F. 1962. The Isolation and Identification of the Lachrymogenic Compound of Onion. Diss. Abstr. Int. B, 22: 3978. |
| PROPIONALDEHYDE | 2 | Bulb | not available | not available | not available | Wilkens, W. F. 1964. Isolation and Identification of the Lachrymogenic Compound of Onion. Cornell Univ., Agr. Expt. Sta. Mem. No., 385: 31 pp. |
| PROPIONALDEHYDE | 2 | Leaf | not available | not available | not available | Burtsev, A. F., Pashchenko, T. W., Rik, G. R. 1974. Mass-Spectrometric Analysis of Volatile Phytonocide Substances of Cucumber and Common Onion Leaves. Fiziol Biokhim Kul't Rast, 6: 516-. |
| PROSTAGLANDIN-A | 0 | Bulb | not available | not available | not available | Pobozsny, K., Tetenyi, P., Hethelyi, I., Kocsar, L., Mann, V. 1979. Biologically Active Substances: Investigations into the Prostaglandin Content of Allium Species. I. Herba Hung, 18(2): 71-81. |
| Activity | Chemical Count | Reference |
|---|---|---|
| Hyperuricemic | 1 | Martindale's 28th |
| Hypnotic | 3 | Martindale's 29th |
| Hypoammonemic | 1 | Jeffery B. Harborne and H. Baxter, eds. 1983. Phytochemical Dictionary. A Handbook of Bioactive Compounds from Plants. Taylor & Frost, London. 791 pp. |
| Hypoarginanemic | 1 | Martindale's 29th |
| Hypocalcemic | 1 | Borchard, R. E., Barnes, C. D., and Eltherton, L. G. 1991. Drug Dosage in Laboratory Animals: A Handbook. (3rd Ed.) The Telford Press, Inc., P. O. Box 287, Caldwell NJ 07006. |
| Hypocholesterolemic | 27 | Duke, 1992 * |
| Hypoglycemic | 17 | Duke, 1992 * |
| Hypolipemic | 1 | Duke, 1992 * |
| Hypolipidemic | 4 | Duke, 1992 * |
| Hypotensive | 17 | Cunane, S. and Thompson, L. U., eds. 1995. Flaxseed in Human Nutrition. AOCS Press, Champaign IL. 384 pp. |
| Hypothermic | 1 | Duke, 1992 * |
| Hypouricemic | 1 | Duke, 1992 * |
| ICAM-1-Inhibitor | 1 | Duke, 1992 * |
| Ileorelaxant | 1 | Duke, 1992 * |
| Immunomodulator | 12 | Economic & Medicinal Plant Research, 6: 189. |
| Immunostimulant | 13 | Cunane, S. and Thompson, L. U., eds. 1995. Flaxseed in Human Nutrition. AOCS Press, Champaign IL. 384 pp. |
| Immunosuppressant | 3 | Duke, 1992 * |
| Inflammatory | 1 | Duke, 1992 * |
| iNOS-Inhibitor | 2 | Duke, 1992 * |
| Inotropic | 2 | Duke, 1992 * |