what is the answer friends........................?:)
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Food preservation prevents the growth of microorganisms (such as yeasts), or other microorganisms (although some methods work by introducing benign bacteria or fungi to the food), as well as slowing the oxidation of fats that cause rancidity.
Methods of preservation are drying, refrigeration, and fermentation. Other methods include canning, pasteurisation, freezing, irradiation, and the addition of chemicals.
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for home made turmeric and salt are food precervatives......
for modern like chips nitrogen gas ......❤️✌️☺️
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