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| Parameter | Specification | Result | Method |
|---|---|---|---|
| Appearance | Fine powder, light yellow | Complies | Visual Inspection |
| Identification | Positive reaction for Rice Bran Extract | Complies | HPLC / TLC |
| Ferulic Acid | 98% minimum | 98.2% | HPLC |
| Moisture Content | ≤ 5% | 3.2% | Loss on Drying (105°C, 2 hrs) |
| Ash Content | ≤ 5% | 1.8% | Incineration at 550°C |
| pH (1% solution) | 4.5 - 7.0 | 6.1 | pH Meter |
| Particle Size | 100% pass 80 mesh | 100% pass 80 mesh | Sieve Analysis |
| Bulk Density | 0.3 - 0.5 g/cm³ | 0.42 g/cm³ | ASTM D1895 |
| Heavy Metals (as Pb) | ≤ 10 ppm | < 5 ppm | ICP-MS / AAS |
| Arsenic (As) | ≤ 1 ppm | < 0.5 ppm | ICP-MS |
| Lead (Pb) | ≤ 1 ppm | < 0.5 ppm | ICP-MS |
| Mercury (Hg) | ≤ 0.1 ppm | < 0.05 ppm | ICP-MS |
| Cadmium (Cd) | ≤ 1 ppm | < 0.5 ppm | ICP-MS |
| Total Plate Count | ≤ 1,000 CFU/g | 300 CFU/g | AOAC 990.12 |
| Yeast & Mold | ≤ 100 CFU/g | 50 CFU/g | AOAC 997.02 |
| E. Coli | Negative | Negative | AOAC 2002.05 |
| Salmonella | Negative | Negative | AOAC 2004.03 |
| Staphylococcus Aureus | Negative | Negative | AOAC 2003.07 |