[source] calyx of Roselle (Roselle) in Malvaceae.
[appearance] red purple powder
[character] the natural red pigment extracted from the calyx of Roselle. The product is soluble in water, ethanol, oil and acetone. In acid condition, the solution is purplish red and the color is stable. At ph2.85, the maximum absorption peak is about 520nm, and it will change with the increase of pH value, and the color of the pigment will obviously fade. This product is only suitable for acid food, sensitive to light and heat, unstable to oxygen and metal ions. Metal chelating agents such as phytic acid, chloride and L-ascorbic acid can be added to improve their heat and light resistance.
[ingredients] the main color components are delphinidin-3-diglucoside and cyanidin-3-diglucoside.
[preparation] the calyx of Roselle is extracted with water, purified and concentrated by membrane technology, and then dried.
[application] this product can be used for coloring fruit juice (flavor) drinks, candy, confectionery wine, jam, jelly, ice cream, soda and other foods, as well as advanced cosmetics.
[usage] add the required amount of pigment into the appropriate amount of water or dilute ethanol, dilute and stir evenly, add the solution into the product to be dyed, and stir evenly.