Fumaric Acid Food Grade 99.5% Fumaric Acid Industrial Grade 99% Food Grade Fumaric Acid is produced by the oxidation of benzene, ... unsaturanted resins,organic synthesis,pharmaceutical,oil,preservatives industry.Feed Grade Fumaric Acid,content of 99.5%,mainly for the production ... and reproduction of beneficial bacteria to enhance feed palatability and utilization rate. Fumaric Acid industrial grade