A toxin dangerous to humans may help E. coli fend off aquatic predators, enabling strains of E. coli that produce the toxin to survive longer in lake water than benign counterparts, a new study from researchers from the University at Buffalo and Mercyhurst University finds.
KSWFoodWorld
FoodWorld 
FooDB is a database on food constituents, chemistry and biology that has been under development since 2009. It currently has data on 28,500 food compounds and food associations. It is being jointly developed with Dr. Augustin Scalbert (IARC, Lyon). When completed in late 2012 or early 2013 it will be the most comprehensive resource on food composition in the world. It will provide information on both macronutrients and micronutrients, including many of the constituents that give foods their flavor, color, taste, texture and aroma. The link provided here gives some sample pages from the database.