Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Evaluation of Cyperus Starch Properties with Respect to USP Specifications
| Test | Cyperus starch | USP specifications for starch |
|---|---|---|
| Identification | Conforms | + |
| Microbial limits | Conforms | + |
| pH (20% slurry) | 6.5–6.9 | 4.5–7.0 |
| Loss on drying | 12.5% | ≤14.0% |
| Residue on ignition | 1.0% | ≤0.5% |
| Oxidizing substances | 0.001% | ≤0.002% |
| Sulfur dioxide | 0.005% | ≤0.008% |
| Iron content | 0.4000 ppm | ≤20 ppm |
| Magnesium content | 0.0014 ppm | – |
| Calcium content | 0.7440 ppm | – |
| Lipid content | 0.3% | – |
