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 Potassium Sorbate Sphere(PSS)
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Potassium Sorbate Sphere(PSS)

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Potassium sorbate is the potassium salt of Sorbic Acid, chemical formula C6H7KO2. Its primary use is as a food preservative (E number 202). Potassium sorbate is effective in a variety of applications including food, wine, and personal care products.

Potassium sorbate is produced by reacting sorbic acid with an equimolar portion of potassium hydroxide. The resulting potassium sorbate may be crystallized from aqueous ethanol.

Potassium sorbate is used to inhibit molds and yeasts in many foods, such as cheese, wine, yogurt, dried meats, apple cider, soft drinks and fruit drinks, and baked goods. It can also be found in the ingredients list of many dried fruit products. In addition, herbal dietary supplement products generally contain potassium sorbate, which acts to prevent mold and microbes and to increase shelf life, and is used in quantities at which there are no known adverse health effects, over short periods of time.

  • Specification
Appearance White to off-white sphere
Identification UV- Maximum 264 ± 2mm
Assay 99.0% - 101.0%
Loss on drying ≤ 1%
Odor Slight characterisitc odor
Heat stability No change in color after heating for 90 minutes at 105℃
Clarity Not less than 90%
Melting point (℃) 133.0- 135.0
Light stability No change in color after an hour light
pH (10%) 8.5 - 10.5
Alkanlinity (as K2CO3) Pass Test
Acidity (as Sorbic Acid) Pass Test
Chlorlde (as Cl) ≤ 0.018%
Aldehydes (as formadehyde) ≤ 0.1%
Sulfate (as SO4) ≤ 0.038%
Arsenic ≤ 3 mg/kg
Lead ≤ 2 mg/kg
Mercury ≤ 1 mg/kg
Total heavy metals (as Pb) ≤ 10 mg/kg
Total plate count ≤ 100 cfu/ g
Mould & yeast ≤ 50 cfu/ g
E. Coli/ 5g Negative

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