Data Views Plants (>= 1 Chemical): 393 All Chemicals: 42 CSV Excel PDF Previous123 Show all rows. Paginate rows. Click on column headings to sort table by that column Chemical Dosage References TROLOX IC50 (uM)=170* ZINGERONE --* *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.