Potassium Sorbate is a potassium salt of sorbic acid. Sorbic acid is an antimicrobial compound produced naturally by many plants. Although it exists naturally, the sorbic acid most commonly used in food production is chemically derived.
Potassium sorbate is highly effective at slowing the growth of many illness-causing pathogens. The Center for Science in the Public Interest lists this substance as safe for human consumption, with no known side effects. Potassium sorbate is also listed as GRAS (generally recognized as safe) by the FDA and is not associated with any known adverse health effects.
Products that contain Potassium Sorbate:
Naidu AS. Natural Food Antimicrobial Systems. (2000) Boca Raton, Florida; CRC Press.
Sorbic Acid. Center for Science in the Public Interest (ND). Available at: http://www.cspinet.org/reports/chemcuisine.htm#sorbicacid.
Alphabetical List of SCOG Substances. Food and Drug administration, 06/21/2013. Available at: http://www.fda.gov/Food/IngredientsPackagingLabeling/GRAS/SCOGS/ucm084104.htm.