... widely used in dope,resin, medicines and plasticizer ,food additives ,feed additives and so on . Fumaric acid can be named fumerate ... ,resin, medicines and plasticizer ,food additives ,feed additives and so on .1,Food grade of fumaric acid as sourness tastes sterling , used ... keep challah,vegetable ,fruit and fresh meat well .3,Feed grade of fumaric acid and the ester as acidic antiseptic can improve ...