Black Rice Red Color

We are offering black rice red color.
Product no.: #1204 product name: black rice red color
1. Source: oryza sativa l.
2. Part of the plant used: fruit
3. Product description
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