[Origin]Root of Ipomoes batatas.
[Appearance]Purple red powder.
[Description]A natural red pigment extracted from the root of Sweet potato. It is easily soluble in water and ethanol water liquor, not soluble in acetone and oil. The pigment also has a good stability to heat. The water solution of the pigment is red with a little purple hue when pH is below 6 and the absorbance peak is 530nm. The color of the pigment water liquor will change from red to purple and to unstable green when pH rises from 6 to 12. The pigment has a good dyeing ability to starch and protein in acid solution.
[Composition]Cyanidin acyl glucoside and peonidin acyl glucoside (anthocyanin)
[Production]The pigment is derived from soaking, refining and spray-drying.[Application]Soaked food, cake ,fruit juice and candy.
[Using method]Add desired pigment to some water or ethanol solution and stir to get a equal red solution. Heat up the solution when the pigment is hard to solve for the reason of low temperature. Put this red solution into your product for pigmentation. To get a good dying result. Stirring is also needed and the temperature shoud be controlled below 80¡æ.
[Pack]10 kg, plastic bag in fibre drum. Store in cool and dry place. Keep from sunlight.
[Shelf]One year (Original package)
[Specification]
No |
item |
data |
1 |
Absorbance E(1%,1cm,530nm) |
¡Ý 10 |
2 |
Loss on drying(powder only) |
¡Ü 7 percent |
3 |
Arsenic |
¡Ü 2 mg/kg |
4 |
Lead |
¡Ü 5 mg/kg |
5 |
Germ |
¡Ü 1000 /g |
6 |
Pathogenic bacteria |
Absent |
 
|
