Purple Sweet Potato Color,China erica price supplier

Purple Sweet Potato Color:

We have our own factory, which is professionally manufacturing various kinds of natural pigment.

Properties:
Appearance: Powder:Red to purple red  Liquid: Brown purple
Color value E(1%,1cm,pH3.0,530+/-3nm): Powder:30-80 Liquid:10-30
Package: Powder is packed with 10kg or 20kg carton or plastic drum with inner plastic bags.
         Liquid is packed with 20kg plastic drum.
         or as per customer's demand
Storage: Sealed, avoid light, store in cool and dry place.
Shelf life: Powder: two years Liquid: six months

Description:
Purple Sweet Potato Color, a pure natural and water soluble food color produced by our company, is extracted from purple root tuber of edible purple sweet potato (Impomoea batatas) planted locally. The process is checking, washing, slicing, extracting, filtrating, purifying, concentrating, sterilizing(purple sweet potato color  liquid), spraying & drying(purple sweet potato color  powder). The main ingredient is cyanidin acyl glucoside & peonidin acyl glucoside.

Purple sweet potato color powder is red to purple red, liquid is brown purple, both has the characteristic odor of sweet potato. It can be dissolved in water & alcohol, propylene glycol solution easily, but not in oil. The color of water solution changes when PH is different. When PH is between2-6, the color is red or purple red .The solution color becomes blue, and is unstable when PH is above 6. The color of solution can’t fade under light for a long time, and also has good resistance to high temperature in an acidic medium.
 
Usage:
Purple sweet potato color can be widely used in wine, beverage, fruit sauce, candy, cake.