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Purple Sweet Potato Color

  • 4/28/2015 7:23:50 PM
  • sales@zelangusa.com
Purple Sweet Potato Color image

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.

As a professional large biopharmaceutical company, Zelang Group can not only provide all kinds of Chinese medicinal materials, but also provide you with pure natural plant pigment, antioxidant plant extracts, organic plant extracts and all kinds of green products. If you have any interest,please e-mail our Sales Executive for more products information which not listed in! Mailbox of our Sales Executive: sales@zelangusa.com

Purple Sweet Potato Color - Characteristics:natural dye, natural pigment, natural color

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.

Purple Sweet Potato Color - Quality Standard:natural dye, natural pigment, natural color


Enterprise Standard



Color Value E(1%、1cm、PH3.0、530±5nm)



Loss on Drying

%  Less than




%  Less than






Lead(as Pb)

mg/kg Less than



Arsenic(as As)

mg/kg Less than



Aerobic Plate Count

cfu/g less than



Pathogenic Bacteria



Applications and Usage Instruction(in compliance with GB2760:Hygienic standards for uses of food additives)

Purple sweet potato color can be widely used in wine, beverage, fruit sauce, candy, cake.

Usage Reference(in compliance with GB2760:Hygienic standards for uses of food additives)


Purple Sweet Potato Color - Package:natural dye, natural pigment, natural color

Powder is packed with corrugated box, carton, or plastic drum with inner double plastic bags, net weight is 10kg or 20kg for each container. Liquid is packed with plastic drum, net weight is 20kg.Package standards are also available according to consumer‵s demand.

Purple Sweet Potato Color - Storage:natural dye, natural pigment, natural color

Sealed, avoid light, store in cool and dry place.

Purple Sweet Potato Color - Shelf Life:natural dye, natural pigment, natural color

If the storage condition attains as mentioned above, Powder two years from production date, liquid is six months(unopened). Once opened, should seal up again and use within six months(powder)or one month (liquid).

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