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Purple Sweet Potato Color Natural pigment
Purple Sweet Potato Color Natural pigment

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Quality/Safety Certification: 0.00


Red or red-purple liquid or powder. In aqueous solution the color varies with its PH. Used in beverage, jelly, candy, etc.

Purple Sweet Potato is extracted from Ipomoea batatas L.

Main composition:  Anthocyanins and other flavonoides.

          

Properties: Red or red-purple liquid or powder. In aqueous solution the color varies with its PH. When PH is 2-6, it is red; when PH is more than 7, the color is violet or blue.

Quality standard:

ITEMS

INDICES

Appearance

Liquid

Powder

Red or Purple-red

Red or Purple-red

Color Value E10%1cm 530nm 

50—200

200—600

Loss on Drying     ≤ 

10%

Ash                ≤ 

2%

4%

Heavy Metal    ppm≤ 

20

20

Lead           ppm≤ 

5

5

Arsenic        ppm≤ 

2

2

Microbiologic Quality

Conforms to Standards of Food Additives

 

Technological Process:

Raw Material → Slicing → Immersion in water → Filtering →Purification → Concentration in Vacuum → Killing of Bacteria →Liquid

 

Applications/Use Rates:

Fruit Preps, Beverages; 0.01-0.05%

 

Storage Conditions:

 

 

Avoid exposure to heat, air, and light. Recommended storing at refrigerator conditions for maximum shelf life of 2 years .

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