Bolly Biology
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| Testing Items | Specifications | Results |
|---|---|---|
| Appearance | Yellow or yellowish powder | Conforms |
| Soluble in hexane content | ≤12.5% | 7.60% |
| Loss on drying | ≤8.0% | 2.55% |
| Residue on ignition | ≤0.30% | 0.26% |
| Heavy metals | ≤20ppm | <20ppm |
| The total number of aerobe | ≤1000cfu/g | 65cfu/g |
| Yeast & Mold | ≤100cfu/g | 10cfu/g |
| E. Coli | Negative | Negative |
| Nitrogen Assay | On dried basis: 13.1%~17.0% | 14.22% |
✓ Conclusion: The Product Conforms to Qualified standards.
The CAS number for ZEIN is 9010-66-6, and its EINECS registry number is 232-722-9.
ZEIN is standardly packaged in 25kg drums and has a shelf life of 2 years when stored under appropriate dry and cool conditions.
It typically presents as a yellow or yellowish powder, conforming to strict quality standards.
Heavy metals are strictly controlled at ≤20ppm. The microbiological limits require the total aerobe count to be ≤1000cfu/g, yeast & mold to be ≤100cfu/g, and testing must show negative results for E. Coli.
On a dried basis, the nitrogen assay specification for ZEIN ranges between 13.1% and 17.0%. The tested sample batch shows an actual result of 14.22%.
