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Salt inhibits the growth of microorganisms by drawing water out of microbial cells through osmosis. Concentrations of salt up to 20% are required to kill most species of unwanted bacteria. Smoking, often used in the process of curing meat, adds chemicals to the surface of meat that reduce the concentration of salt required.
Salt (sodium chloride) is the primary ingredient used in meat curing. [11] Removal of water and addition of salt to meat creates a solute-rich environment where osmotic pressure draws water out of microorganisms, slowing down their growth. [11] [12] Doing this requires a concentration of salt of nearly 20%. [12]
It is both a color agent and a means to facilitate food preservation as it prevents or slows spoilage by bacteria or fungus. Curing salts are generally a mixture of sodium chloride ( table salt ) and sodium nitrite , and are used for pickling meats as part of the process to make sausage or cured meat such as ham, bacon , pastrami , corned beef ...
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 benzoate (E212), the potassium salt of benzoic acid, is a food preservative that inhibits the growth of mold, yeast and some bacteria. It works best in low- pH products, below 4.5, where it exists as benzoic acid.
Canning involves cooking food, sealing it in sterilized cans or jars, and boiling the containers to kill or weaken any remaining bacteria as a form of sterilization. It was invented by the French confectioner Nicolas Appert. [4] By 1806, this process was used by the French Navy to preserve meat, fruit, vegetables, and even milk.
Salt (sodium chloride) is a primary ingredient used to cure fish and other foods. [5] Removal of water and addition of salt to fish creates a solute-rich environment where osmotic pressure draws water out of microorganisms, retarding their growth. [5] [6] Doing this requires a concentration of salt of nearly 20%. [6]
Sulfite is SO 3 2-, available as its sodium and potassium salts, Na 2 SO 3 and K 2 SO 3, respectively. When dissolved in water, these salts react with oxygen to give the corresponding sulfate salts, which are innocuous. Sodium sulfite used industrial as a corrosion inhibitor/oxygen scavenger. Monoprotonation of sulfite gives HSO 3 −, which is ...
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