Final answer:
Fruits are usually harvested before they are ripe, known as picking unripe fruits, to prevent spoilage during long-distance transportation. They can then ripen during shipment or after arrival, with common methods like controlled atmosphere storage or ethylene treatment to manage ripening.
Step-by-step explanation:
When fruits are sold during conventional redemption, it typically means they are being sent to a market, possibly overseas, to be sold. Most commercial fruits are harvested before they are ripe, which is a practice known as picking unripe fruits. This is done to ensure that the fruits do not spoil during transportation over long distances and are ripe by the time they reach the supermarket shelves. These fruits can ripen en route to their destination or once they arrive, and methods such as controlled atmosphere storage or ethylene treatment are often used to manage the ripening process.