Comparative Analysis of Selected Bio chemical Properties of Cordyla pinnata Fruit Dried Using a Solar Dryer and Open- Air Drying

This study aims to evaluate the influence of drying methods (open-air sun drying and solar dryer drying) on the biochemical composition of Cordyla pinnata fruit, which is used in phytotherapy and local diets in Senegal. The objective is to identify the most effective drying technique for preserving nutrients and nutritional properties while reducing post-harvest losses. To assess drying efficiency, two distinct techniques were compared: solar dryer drying and open-air drying. Dried fruit samples were analyzed to determine total ash content, proteins, sugars (total and reducing), and mineral composition. The results show that the solar dryer better preserves proteins (4.39 ± 0.69 g/100 g) and reducing sugars (3.53 g/100 g) compared to open-air drying (3.99 ± 0.41 g/100 g and 1.94 g/100 g, respectively). Total sugar contents were similar for both methods, whereas open-air drying retained higher levels of minerals, including macroelements and trace elements (63 ± 1 mg/100 g and 234 ± 1 mg/100 g). These findings indicate that solar drying is more effective in preserving primary metabolites, while open-air drying favors the conservation of certain minerals. Drying therefore represents a promising approach for valorizing local food products. Solar drying appears to be the most balanced method, combining accessibility, hygiene, performance, and nutrient preservation, making it a suitable technology for Africa with strong potential to enhance food security.