Ponceau 4R
CAS No.:1082572-30-2
Physical and chemical properties
Red to crimson uniform powder or particles, odorless. Strong light and heat resistance (105 ℃). It is stable to citric acid and tartaric acid. Poor reduction resistance and turns brown in case of alkali. Soluble in water and red solution. Soluble in glycerol, insoluble in ethanol, insoluble in oil.
Ponceau 4R was prepared by chemical method from 4-amino-1-naphthalene sulfonic acid diazotization, 2-naphthol-6,8-disulfonic acid, and sodium chloride. Other forms of the carmine aluminum lake: it is obtained by reacting aluminum salt solution such as aluminum sulfate and aluminum chloride with sodium hydroxide or sodium carbonate, adding the carmine aqueous solution to make it completely adsorbed, and then filtering, drying, and crushing.
Toxicological basis
① LD50: 19.3g/kg (BW) in mice and more than 8g / kg (BW) in rats.
②ADI：0～4mg/kg（BW）（FAO/WHO，1994）.
Application
Colorant. Carmine is a traditional edible red pigment, which is used for color addition, color enhancement, or color matching.
GB 2760-2014 stipulates that it can be used for preparing milk, flavor fermented milk, prepared condensed milk (including sweetened condensed milk and prepared condensed milk with non milk raw materials), frozen drinks (except 03.04 edible ice), preserved fruits, pickled vegetables, cocoa products, chocolate and chocolate products (including cocoa butter chocolate and products), candy (except 05.04 decorative candy, topping and sweet juice), shrimp flavor chips, color packaging on cakes Hanging pulp for filling and surface of baked food (only for biscuit sandwich and cake sandwich), fruit and vegetable juice (pulp) beverage, milk containing beverage, carbonated beverage, flavor beverage (only for fruit flavor beverage), prepared wine, jelly and puffed food, with the maximum dosage of 0.05g/kg (calculated by carmine, the dosage of solid beverage shall be increased according to the dilution multiple; if used for jelly powder, the dosage shall be increased according to the mixing multiple);
For preparing milk powder and cream powder, the maximum dosage is 0.15g/kg (calculated by carmine); It is used for coating canned fruits, decorative fruits and vegetables, candy, and chocolate products, with the maximum dosage of 0.1g/kg (calculated by carmine); It is used for jam, fruit flavoring syrup and semi-solid compound seasoning (except mayonnaise and salad dressing at 12.10.02.01).
The maximum dosage is 0.5g/kg (calculated by carmine); For egg rolls, the maximum dosage is 0.01g/kg (calculated by carmine); Edible animal casings, vegetable protein drinks, and collagen casings for meat products, with the maximum dosage of 0.025g/kg (calculated by carmine, the dosage of solid drinks shall be increased according to the dilution multiple); It is used for seasoning syrup, mayonnaise, and salad dressing. The maximum dosage is 0.2g/kg (calculated by carmine).
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