Solubility: soluble in water; Insoluble in ethanol; According to OT-42 method and OT- 16 method, the pigment identification test was determined. Eat blue pigment.
Content analysis:
The total pigment content was determined according to method 2 in OT- 15. The conditions are as follows: the sample quality is1.3 ~1.4g; The buffer solution is 15g sodium hydrogen tartrate; The pigment content of 0. 1 mol/L ticl3 per ml is equivalent to 0.02898g of calcium salt or 0.029 13g of sodium salt.
Toxicity: ADI does not stipulate (FAO/ WHO, 200 1), and HACSG stipulates that it should not be used in children's food.