POTASSIUM SORBATE (E202 food grade) 99%, kg

Parameter	Attribute
Potassium sorbate	E202, potash sorbistate
Formula	CH3CH=CH−CH=CH−CO2K
Structure
IUPAC	potassium hexa 2,4-dienate
INCI	POTASSIUM SORBATE
CAS	24634-61-5
Molar mass	150.218 g/mol
Density	1,363 g/cm3
Solubility	In water: 58.5 g/100 mL (100 °C)

It is the sodium salt of sorbic acid with the chemical formula C₆H₇KO₂. It is a widely used food preservative with the E number E202. It can be produced by reacting potassium hydroxide with sorbic acid.

In the food industry potassium sorbate is used as a preservative. Potassium sorbate is used to inhibit the growth of moulds and yeasts in food products (cheese, wine, yoghurt, dried meat, cider, soft drinks, fruit juice drinks, bakery products). It is used in the manufacture of maple syrup, milkshakes. It is also used as an ingredient in dried fruit products. Potassium sorbate is commonly found in herbal food supplements as it inhibits the growth of moulds and other microbes, which extends shelf life. The recommended rate of potassium sorbate in food preservation is up to 0.1% of the total weight of the product. Potassium sorbate is also known as a wine stabilizer and is converted into sorbic acid when it enters the wine. Once the wine is actively fermenting and the bottles of clarified wine have been racked, potassium sorbate inhibits further yeast growth. This stops further conversion of wine sugars into CO2 and ethanol. This is important for sweetened wines, where sorbate is added before bottling. Sorbate is usually used in combination with potassium metabisulphite. Potassium sorbate is added to sweet wines, sparkling wines, ciders, and some table wines that do not retain their clarity well after bottling.

In cosmetics, potassium sorbate E202 is used as a preservative in cosmetic and personal care products, baby products, bath products, soaps and detergents, eye make-up, cleaning products, make-up products, as well as hair, nail and skin care products. Some cosmetic and pharmaceutical manufacturers use potassium sorbate instead of parabens. The main INCI functions are:

• Masking: reduces or suppresses the odor or main flavor of the product
• Preservative: Inhibits the development of micro-organisms in cosmetic products.

In animal husbandry, potassium sorbate can be used as a preservative in agriculture for animal and poultry feed. The most common use is in the summer period for the preparation of feeds which are moist, coated with molasses, glycerol, propylene glycol and mineral additives. The warm temperatures quickly cause the feed to spoil, reducing its efficiency and digestibility during the day. To avoid additional feed preparation, deterioration of livestock health and loss of milk production, up to 0,1% potassium sorbate is added to the total amount of feed prepared.

In aquaculture, potassium sorbate is used both alone and in combination with sodium benzoate in the preparation of fishing lures. It is most commonly found in flavoring products for carp fishing, boilies, dips, etc. Concentrations up to 5% of the total weight are used. The highest concentrations are found in the raw additives to ensure long term freshness of the baits. The solubility of potassium sorbate in propylene glycol, the absence of off-odors and its easy degradability in water make it one of the main preservatives.

In pharmaceuticals, potassium sorbate can be used in nutrient preparations that are fed by tubes directly into the stomach of patients, as it helps to reduce the number of pathogenic bacteria.

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