purple natural pigment

purple natural pigment purple sweet potato color natural pigment

Product Functions: Water-soluble edible natural color

Product Source: Purple tuberous root of purple sweet potato

Raw Material Sourcing Standards: Fresh, Unwounded, No-Mould-Contained

No-Foreign-Object-Infected purple-red to red sweet potato

Main Coloring Compositions: Anthocyanins (main contents: cyanidins, peonidins)

Solvent Stability:  Soluble in water and aqueous ethanol, Insoluble in oil

Acidity Stability:  Stable in acidic conditions pH 2-6 RED to RED-PURPLE 

Alkali Stability:  Unstable in alkaline conditions pH > 6 PURPLE-BLUE TO BLUE

Light Stability (under acidic conditions):   Excellent

Heat Stability (under acidic conditions):   Excellent

Quality Index:

Item	Index
	Liquid	Powder
Appearance	Purple--red	Purple red
E1% 530nm	≥8	≥10
Burning Residues	≤2%	≤4%
Drying Shrinkage		≤10%
Heavy metal(Pb)	≤20 mg/kg	≤20 mg/kg
Arsenic(As)	≤1 mg/kg	≤2 mg/kg
Plumbum(Pb)	≤3 mg/kg	≤5 mg/kg
Total Bacteria Count	≤1000 cfu/ml	≤1000 cfu/g
Pathogenic Bacteria	None	None

Applications:  Stain for wine, beverages, confectionaries, cakes, jam, etc.

Dosage Reference:  beverages 0.01~0.1%

cakes 0.01~0.1%

confectionaries 0.05~0.2%

Package: 10kg powder in every cardboard carton, cardboard drum, or plastic drum with inner plastic bag

        25kg liquid in every plastic drum

        Other packing method or size available according to consumers’ demand

Storage:  Sealed package in dark, cool and dry places

Expiration Date (without being opened): From the date of ex-factory

POWDER 2 years  LIQUID 6 months

Expiration Date (being opened): From the date of first open

POWDER 6 months LIQUID 1 month

purple natural pigment