Extensionist placing trays of paste made from papaya and bananas to dry in solar a oven where they will remain for 4-5 days and, once dried, will last for two years. - - Popularizing the Use of Small-scale Fruit and Vegetable Preservation Techniques: TCP/SEN/8954. Senegal produces between 90 000 and 120 000 tonnes of fruit annually, -the difference reflecting climatic fluctuations and the fact that fruit crops are an alternate bearing. This project, funded by the Technical Cooperation Programme (TCP) of the Food and Agriculture Organization of the United Nations, aims at reducing losses of vegetables and fruits by the introduction of improved orchard management practices and fruit and vegetable preservation techniques for family consumption. This would benefit perishable horticultural crops such as mangoes, onions, peppers and tomatoes.