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Potassium sorbate is the potassium salt of sorbic acid, chemical formula CH 3 CH=CH−CH=CH−CO 2 K. It is a white salt that is very soluble in water (58.2% at 20 °C). It is primarily used as a food preservative (E number 202). [4] Potassium sorbate is effective in a variety of applications including food, wine, and personal-care products.
Potassium is mainly an intracellular ion. High turnover of tumor cells leads to spill of potassium into the blood. Symptoms usually do not manifest until levels are high (> 6.5 mmol/L) [normal 3.5–5.0 mmol/L] and they include [8] palpitations, cardiac conduction abnormalities, and arrhythmias (can be fatal) muscle weakness or paralysis
Sorbic acid and its salts, especially potassium sorbate and calcium sorbate, are antimicrobial agents often used as preservatives in food and drinks to prevent the growth of mold, yeast, and fungi. In general the salts are preferred over the acid form because they are more soluble in water, but the active form is the acid.
Potassium sorbate; S. Sodium sorbate This page was last edited on 25 January 2021, at 19:27 (UTC). Text is available under the Creative Commons Attribution ...
Sub-acute, sub-chronic and chronic toxicity studies did not show any adverse effects at concentrations up to 9 200 mg/kg body weight (bw)/day in rats. Given the lack of genotoxicity data on calcium sorbate and the available positive genotoxicity data on sodium sorbate, the Panel concluded that calcium sorbate should be excluded from the group ADI.
In wine, it is often used to replace potassium sorbate, as it inactivates wine spoilage yeasts such as Brettanomyces. Once it has been added to beverages, the efficacy of the chemical is provided by the following reactions: DMDC + water → methanol + carbon dioxide DMDC + ethanol → ethyl methyl carbonate DMDC + ammonia → methyl carbamate
According to the U.S. National Cancer Institute: "Of the more than 7,000 chemicals in tobacco smoke, at least 250 are known to be harmful, including hydrogen cyanide, carbon monoxide, and ammonia. Among the 250 known harmful chemicals in tobacco smoke, at least 69 can cause cancer."
Without the addition of potassium sorbate the yeast population will only be stunned and eventually repopulate if provided with enough fermentable sugars. [ 3 ] A typical Campden tablet contains 0.44 g of sodium metabisulfite, plus filler; eight of these are equivalent to one-half level teaspoon (2.5 mL) of sodium metabisulfite.
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