Data Views Exclude Ubiquitous Chemicals Activities: 9 Chemicals w/Activities: 2 All Chemicals: 2 CSV Excel PDF Click on column headings to sort table by that column # Activity Chemical Part All Plant Tuber Low PPM High PPM StdDev *Reference 5 5 STARCH Tuber -- -- * 4 4 CALCIUM-OXALATE Plant -- -- * *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.