TABLE 3.
Stability testing of the NF as a powder.
| Parameter | Month 0 | Month 36 | ||||
|---|---|---|---|---|---|---|
| 2015–1 | 2015–2 | 2015–3 | 2015–1 | 2015–2 | 2015–3 | |
| pH value | 6.9 | 6.3 | 6.4 | 6.9 | 6.3 | 6.4 |
| Loss on drying | 0.1% | 0.1% | 0.2% | 0.1% | 0.1% | 0.2% |
| l‐Threonate | 88.7% | 88.2% | 86.5% | 85.8% | 86.6% | 86.0% |
| Oxalic acid | 0.4% | 0.3% | 0.2% | 0.4% | 0.3% | 0.2% |
| Magnesium | 7.6% | 7.8% | 7.8% | 7.6% | 7.6% | 7.6% |
| Assay | 99.6% | 100.8% | 100.9% | 98.6% | 98.6% | 98.4% |
| Bacterial count | < 10 cfu/g | < 10 cfu/g | < 10 cfu/g | < 10 cfu/g | < 10 cfu/g | < 10 cfu/g |
| Yeast and mould | < 10 cfu/g | < 10 cfu/g | < 10 cfu/g | < 10 cfu/g | < 10 cfu/g | < 10 cfu/g |
| E. coli | ND | ND | ND | ND | ND | ND |
| Salmonella | ND | ND | ND | ND | ND | ND |
Abbreviations: Cfu, colony forming unit; ND, not detected.