preservatives used in chips

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  • Sodium metabisulfite is commonly employed in various food products, ranging from dried fruits to beverages. One of its primary functions is to prevent oxidation, which can lead to spoilage and loss of flavor, color, and nutritional value. For instance, in dried fruits like apricots and raisins, sodium metabisulfite helps maintain a vibrant color and prolongs shelf life by inhibiting microbial growth.


  • Potassium sorbate is produced industrially by neutralizing sorbic acid with potassium hydroxide. The precursor sorbic acid is produced in a two-step process via the condensation of crotonaldehyde and ketene.

  • Salt is perhaps the oldest and most widely used natural preservative. Through the process of osmosis, salt draws moisture out of food, creating an environment where pathogens cannot thrive. It is commonly used in curing meats and pickling vegetables, making these foods not only safer but also imparting distinctive flavors.


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