Appearance
Purple sweet potato color powder is red to purple red, liquid is brown purple, both has the characteristic odor of sweet potato. It can be dissolved in water & alcohol, propylene glycol solution easily, but not in oil. The color of water solution changes when PH is different. When PH is between2-6, the color is red or purple red .The solution color becomes blue, and is unstable when PH is above 6. The color of solution can’t fade under light for a long time, and also has good resistance to high temperature in an acidic medium.
| Items |
Enterprise Standard |
| Powder |
| Color Value E（1%、1cm、PH3.0、530±3nm） |
30～80 |
| Loss on Drying |
% Less than |
10 |
| Ash |
% Less than |
4 |
| PH |
|
2～4 |
| Lead（as Pb） |
mg/kg Less than |
5 |
| Arsenic（as As） |
mg/kg Less than |
2 |
| Total Plate Count |
cfu/g less than |
1,000 |
| Pathogenic Bacteria |
|
Negative |
Legal registered number
INS NO:163 EEC NO： E-163 KFDA NO：Natural Additives,142 Japanese NO： Natural Additives,434 FDA NO： 21CFR, 73.260
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