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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
100% Natural Pureple Color purple sweet potato color natural coloring agent