Data Views Exclude Ubiquitous Chemicals Activities: 764 Chemicals w/Activities: 195 All Chemicals: 361 CSV Excel PDF Previous1..10111213141516171819 Show all rows. Paginate rows. Click on column headings to sort table by that column # Activity Chemical Part All Flower Fruit Fruit Epidermis Hull Husk Leaf Pericarp Plant Root Seed Low PPM High PPM StdDev *Reference 176 176 QUERCETIN Fruit -- -- CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses *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.