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Activities: 780
All Chemicals: 452
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# Activity Chemical Low PPM High PPM StdDev *Reference
2 PROSTAGLANDIN-A-1 Bulb -- 1.0 *
0 PROSTAGLANDIN-B Bulb -- -- 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.
2 PROSTAGLANDIN-E-1 Bulb -- -- Ustunes, L., Claeys, M., Laekeman, G., Herman, A.G., Vlietinck, A.J., Ozer, A. 1985. Isolation and Identification of Two Isomeric Trihydroxy Octadecenoic Acids with Prostaglandin E-Like Activity from Onion Bulbs(Allium cepa). Prostaglandins, 29(5):847-865
0 PROSTAGLANDIN-F Bulb -- -- 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.
0 PROTEIN Leaf 18000.0 231000.0 0.19 CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses
0 PROTEIN Bulb 10940.0 162000.0 -1.0 *
43 PROTOCATECHUIC-ACID Leaf -- -- Das, V. S. R., Rao, J. V. S. 1964. Phenolic Acids of Onion Plant. Curr. Sci., 33(15): 471-472.
43 PROTOCATECHUIC-ACID Bulb 4500.0 17540.0 *
4 PUFA Bulb 620.0 6005.0 USDA's Ag Handbook 8 and sequelae)
12 PYROCATECHOL Bulb -- -- Hermann, K. 1958. Flavonols and Phenols of the Onion (Allium cepa). Arch. Pharm. (Weinheim), 291: 238-247.
1 PYRUVIC-ACID Fruit -- 1034.0 *
1 PYRUVIC-ACID Bulb -- -- Malkki, Y., Nikkila, O. E., Aalto, M. 1978. The Composition and Aroma of Onions and Influencing Factors. J. Sci. Agr. Soc. Finland, 50: 103-.
1 PYRUVIC-ACID Fruit Juice -- 1034.0 Morgan, E. J. 1946. Pyruvic Acid in the Juice of Onion (Allium cepa). Nature (London), 157: 512.
176 QUERCETIN Bulb -- 48100.0 1.0 *
0 QUERCETIN-3,4'-DI-O-BETA-D-GLUCOSIDE Bulb 1700.0 5600.0 *
2 QUERCETIN-3,4'-DIGLUCOSIDE Bulb -- -- *
2 QUERCETIN-3-O-BETA-D-GLUCOSIDE Bulb -- 40.0 Abstract (See species file)
0 QUERCETIN-3-O-SOPHOROSIDE-7-O-GLUCURONIDE Epidermis -- -- Urushibara, S. I., Kitayama, Y., Watanabe, T., Okuno, T., Watarai, A., Matsumoto, T. 1992. New Flavonol Glycosides, Major Determinants Inducing the Green Fluorescence in the Guard Cells of Allium cepa. Tetrahedron Lett., 33(9): 1213-1216.
0 QUERCETIN-4',7-DI-O-BETA-D-GLUCOSIDE Bulb -- 160.0 *
0 QUERCETIN-4-O-BETA-D-GLUCOSIDE Bulb 100.0 800.0 *
*Unless otherwise noted all references are to Duke, James A. 1992. Handbook of phytochemical constituents of GRAS herbs and other economic plants. Boca Raton, FL. CRC Press.