Data Views Total Plants: 3 CSV Excel PDF Click on column headings to sort table by that column Plant Part All Fruit Leaf Essent. Oil Low PPM High PPM StdDev *Reference Psidium guajava Fruit -- 3000.0 1.0 * Aspalathus linearis Leaf Essent. Oil -- 600.0 * Carica papaya Fruit -- -- -1.0 Jim Duke's personal files. *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.