For fish and prawn 0.1gkg, residue is not more than 0.01 mgkg; For sausage, fish meat paste, grape juice, bean product, the max dosage is 3.0gkg; It can work with sodium bicarbonate in the ration of 2:1 to make cracker,bread and cake, the dosage is 0.13% of weight of flour . It is made of starch, is not-toxic and harmless to human .