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Natamycin (E235)is an anti-fungal compound producedby Streptomyces fermentation. Except inhibiting the growth of various molds and yeasts.Natamycin can also reduce the production of mycotoxins. As a food preservative, it's usuallyused in cheese, cakes and other foods.Natamycin has no inhibitory effect on bacteria, so itdoes not affect the natura maturation process of yogurt, cheese, raw ham, dry sausage
1.Natamycin,also known as pimaricin and sometimes sold as Natamycin, is a naturally occurring antifungal agent produced during fermentation by the bacterium Streptomyces natalensis, commonly found in soil. Natamycin has a very low solubility in water.
| Test Items | Specification | Test Result |
| Appearance | White to creamy-yellow almost odorless crystalline powder | Light yellow odorless crystalline powder |
| Identification | Should meet the requirements | Complies |
| Assay (on dried basis) | ≥95.0% | 95.4% |
| PH | 5.00-7.50 | 5.90 |
| Specific rotation α m (20ºC, D) | +250°dm 2 kg -1 -+290°dm 2 kg -1 | +260°dm 2 kg -1 |
| Loss on drying | ≤8.00% | 7.8% |
| Residue on ignition | ≤0.5% | 0.42% |
| Lead | ≤2.0 mg/kg | Pass |
| Arsenic | ≤1.0 mg/kg | Pass |
| Mercury | ≤0.05 mg/kg | Pass |
| Conclusion | Conform to the standard |
| Test Items | Specification | Test Result |
| Appearance | White to creamy-yellow almost odorless crystalline powder | Light yellow odorless crystalline powder |
| Assay | ≥ 50.0% | 53.0% |
| Loss on drying | ≤ 8.0 % | 4.47% |
| PH | 5.0-7.5 | 6.32 |
| Residue on ignition | ≤ 0.5% | 0.230% |
| Heavy Metal | ≤ 10mg/kg | < 10mg/kg |
| Lead | ≤ 1mg/kg | < 1mg/kg |
| Total Plate Count | ≤ 100cfu/g | < 10cfu/g |
| Coliforms | < 3.0 MPN/100g | <3.0 MPN/ 100 g |
| Salmonella | Negative in 25g | Negative |
| Conclusion | Complies With enterprise Standard | |