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Product name: Black Rice Red Color
1. Source: Oryza sativa L.
2. Part of the plant used: fruit
3. Product de
Red rice red is a natural food color, extracted from red or black rice of Oryza sativ. The appearance of red rice red is purplish red liquid or powder. The main ingredient is cyanidin-3-glucoside, a kind of anthocyan. It is easily dissolved in water and water-alcohol solutions, but it is not dissolve in acetone and petroleum benzene. It has a good resistance to light and heat, but not to oxidant. Na+, K+, Ca2+, Ba2+, Zn2+, Cu2+and trace Fe2+ do not affect the pigment, but the shade of color becomes rose when there are much Sn2+,and becomes fading and deposition to Pb2+ and much Fe2+. The shade of color solution is red when PH is between 1~6, pale brown to yellow when PH is between 7~12. It is widely used in food, beverage, pharmaceutical, cosmetic and other industries.
4. Specifications:
|
Items |
Specifications |
|
|
Liquid |
Powder |
|
|
Appearance |
Purplish red liquid |
Purplish red powder |
|
Color value E(1% 1cm 535nm) |
20~60 |
100~200 |
|
Loss on drying |
- |
≤10% |
|
Ash |
2% |
5% |
|
PH |
2~4 |
2~4 |
|
Heavy metals |
≤10ppm |
≤10ppm |
|
Pb |
≤2ppm |
≤2ppm |
|
As |
≤1ppm |
≤1ppm |
|
Total plate count |
≤1000cfu/g |
≤1000cfu/g |
|
Yeast & Mold |
≤100 cfu/g |
≤100 cfu/g |
|
Salmonella |
Negative/10g |
Negative/10g |
|
E. Coli |
Negative/10g |
Negative/10g |
