Guilin Lianghua purple sweet potato Red natural colour
Purple Sweet Potato Red natural colour , 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).
1 purple sweet potato red pigment from the plant Ipomoea Convolvulaceae natural edible pigment extracted from the
anthocyanins, flavonoids composition.
2 products for the purple liquid, soluble in water and ethanol-water, but insoluble in oil, anhydrous ethanol.
3 by its hue and stability of the pH effects: acidic steady red or purple;-neutral blue; alkaline was unstable green.
Red natural colour Usage Reference
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Guilin Lianghua purple sweet potato Red natural colour