Question

Labels on many packaged foods read, "Contains added preservatives". What does this mean?
What is the role of preservatives in these packaged foods?​

Answer 1

Answer:

Preservatives are used in packed food items to avoid rancidity.

Explanation:

rancidity means spoiling of foods.

sugar is used as a preservative in jams

vinegar is used as a preservative in pickles.

nitrogen is flushed in oil containing food items while packing .