E 1420 ACETYLATED STARCHU.K.
Synonyms | Starch acetate |
Definition | Acetylated starch is starch esterified with acetic anhydride or vinyl acetate |
Einecs | |
Chemical name | |
Chemical formula | |
Molecular weight | |
Assay | |
Description | White or nearly white powder or granules or (if pregelatinised) flakes, amorphous powder or coarse particles |
Identification | |
---|---|
Microscopic observation | Passes test (if not pregelatinised) |
Iodine staining | Passes test (dark blue to light red colour) |
Purity | |
Loss on drying | Not more than 15,0 % for cereal starch Not more than 21,0 % for potato starch Not more than 18,0 % for other starches |
Acetyl groups | Not more than 2,5 % (on an anhydrous basis) |
Vinyl acetate | Not more than 0,1 mg/kg (on an anhydrous basis) |
Sulphur dioxide | Not more than 50 mg/kg for modified cereal starches (on an anhydrous basis) Not more than 10 mg/kg for other modified starches, unless otherwise specified (on an anhydrous basis) |
Arsenic | Not more than 1 mg/kg |
Lead | Not more than 2 mg/kg (on an anhydrous basis) |
Mercury | Not more than 0,1 mg/kg |