Potassium Sorbate is currently recognized as one of the safest food preservatives and is widely used globally. It achieves excellent preservative effects by inhibiting the dehydrogenase systems of molds, yeasts, and many aerobic bacteria. Compared to traditional benzoates, Potassium Sorbate has a broader antimicrobial range and minimal impact on the original flavor of products.
QUALITY STANDARD | |
ITEM | STANDARD |
Appearance | White or off white spherical |
Melting range(℃) | 133-135℃ |
Free alkalinity ( as K2CO3)/(%) | Passes test (≤ 1%) |
Loss on drying (105℃ for 3 h)/(%) | ≤1.0 |
Assay (on dry weight basis)/(%) | 99.0-101.0 of C6H7KO2, on dry weight basis |
pH-Value (10% water solution) | 8.5-10.5 |
Heavy metals(as lead)/( ppm) | ≤10.0 |
Lead/( ppm) | ≤ 2.0 |
Aldehydes (as formaldehyde)/(%) | ≤0.1 |
Arsenic/( ppm) | ≤3.0 |
Mercury/( ppm) | ≤1.0 |
Heat Stability | No discoloration after 90 minutes at 105℃ |
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