Lengthening Shelf-life of Fruits and Vegetables

How much would you pay to length the shelf-life of fruits and vegetables by seven days?

Fruit and vegetables emit ethylene when they are on the shelf in supermarkets, food
warehouses or in cold storage, and this is how the early ripening and decay of fruits and vegetables begins.

The frequent use of ozone contributes substantially to the increase in shelf-life of abovementioned stored products

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