How can the preservation of locally grown fruits be optimized during the off-season?

Bangladesh grows a lot of fruits like jackfruit and mangoes, as well as vegetables and potatoes. But, after these are harvested, there’s a big problem in keeping them fresh and safe. About one-third of these fruits and vegetables get wasted every year because they’re not stored or moved properly, and they go bad quickly. This is a huge loss, not just in food but also in the chance to sell these products to other countries. To fix this, Bangladesh needs better ways to handle these foods after they’re picked. This means finding better methods for keeping them fresh, storing them properly, and transporting them without damage. Doing this will help reduce waste, keep the prices stable, and could help the country earn more money by selling more fruits and vegetables abroad. This will also help local farmers a lot, as they won’t lose as much of what they grow. The primary issue is to solve the problem of preservation of local fruits to use in the off-season.