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Activities: 780
All Chemicals: 452
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# Activity Chemical Low PPM High PPM StdDev *Reference
0 EICOSEN-1-OL Seed -- -- *
4 TRANS-5-ETHYL-4,6,7-TRITHIA-2-DECENE-4-S-OXIDE Bulb -- -- *
0 DIMETHYL-PENTASULFIDE Essential Oil -- -- Jirovetz, L., Koch, H. P., Jager, W., Remberg, G. 1992. Investigations of German Onion Oil by GC-FID, GC-MS and GC-FTIR. Pharmazie, 47(6): 455-456.
0 DIPROPYL-TRISULFIDE Essential Oil -- -- Jirovetz, L., Koch, H. P., Jager, W., Remberg, G. 1992. Investigations of German Onion Oil by GC-FID, GC-MS and GC-FTIR. Pharmazie, 47(6): 455-456.
0 BETA-TOCOPHEROL Seed -- -- *
3 ABSCISSIC-ACID Bulb -- -- *
0 METHYL-METHANE-THIOSULFINATE Fruit Juice -- -- 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.
0 SELENOSIDE Plant -- -- *
0 HEXADECEN-1-OL Seed -- -- *
0 3,4-DIMETHYL-2,5-DIOXO-2,5-DIHYDROTHIOPHENE Bulb -- -- *
0 ALLYL-PROPENYL-DISULFIDE Bulb -- -- Leung, A.Y., Encyclopedia of Common Natural Ingredients Used in Food, Drugs, and Cosmetics, John Wiley & Sons, New York, 1980.
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 S-ALLYL-CYSTEINE Bulb -- -- Renis, H. E., Henze, R. E. 1957. Studies on Sulfur Compounds from Onion. Diss. Abstr. Int. B, 17: 1456-1457.
0 GAMMA-L-GLUTAMYL-S-(2-CARBOXY-BETA-METHYL-ETHYL)-CYSTEINYL-GLYCINE Bulb -- -- *
7 GLUTATHIONE Bulb -- -- Ueda, Y., Taubuku, T., Miyajima, R. 1994. Composition of Sulfur-Containing Components in Onion and Their Flavor Characters. Biosci. Biotech. Biochem., 58(1): 108-110.
0 D-MANNITOL Bulb -- -- *
0 3,4-DIMETHYLTHIOPHENE Essential Oil -- -- Albrand, M., Dubois, P., Etievant, P., Gelin, R., Tokarska, B. 1980. Identification of a New Volatile Compound in Onion (Allium cepa) and Leek (Allium porum): 3,4-dimethyl-2,5-dioxo-2,5-dihydrothiophene. J. Agric. Food Chem., 28(5): 1037-1038.
8 FRUCTOSE Bulb -- -- Osman, S. A. 1980. Chemical and Biological Studies of Onion and Garlic in an Attempt to Isolate a Hypoclycaemic Extract. Abstr. 4th Asian Symp. Med. Plants Spices Bangkok, Thailand, September 15-19: 117.
25 P-COUMARIC-ACID Leaf -- -- Das, V. S. R., Rao, J. V. S. 1964. Phenolic Acids of Onion Plant. Curr. Sci., 33(15): 471-472.
0 4-HYDROXY-BENZOIC-ACID Root -- -- Das, V. S. R., Rao, J. V. S. 1964. Phenolic Acids of Onion Plant. Curr. Sci., 33(15): 471-472.
*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.