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The present study was carried out to characterise tomatoes produced on soilless substrates (cocoa, sawdust, cashew and rice husk) and to evaluate their impact on the technological and organoleptic characteristics of the tomato. A tomato crop was grown on these different substrates for three months. The tomato fruits from each substrate were subjected to chemical, technological and sensory analysis. The tomatoes of the different substrates have a high water content (94.83- 96.37%). Regarding the technological properties, the results recorded are for saccharin index (1.15%), saccharin coefficient (121.5%) and acidity coefficient (8.29%). The sensory study of the tomatoes reveals that the tasters perceived sensory differences between the tomatoes. Their overall perception of the tomatoes confirms their good acceptability. Also taste, colour, shape and consistency are important criteria of fresh tomatoes. At the end of this study, it was found that the C100 substrate presented the best physicomorphological parameters. Technologically, tomatoes from the RB5050 and B100 substrates can be recommended for industrial processing.

This study was conducted with the aim of valorising papaya seeds. To do this, papayas were purchased in order to extract the seeds, then these seeds were dried at different temperatures (50°C/72h; 75°C/48h and 105°C/24h) in the oven. The dried seeds were ground with a mixer to obtain a flour. The effect of temperature on the physicochemical and functional characteristics of this flour was determined. The results of the physicochemical parameters showed that the 50°C dried seeds had the best pH (67.6), fat (5%), protein (32%) and fibre (17.9%). On the other hand, the 100°C temperature recorded parameters such as dry matter (92.17%), carbohydrates (41.12%) and energy value (334.48Kcal). The best ash content was recorded at 75°C (7.80%). On the other hand, no significant difference was recorded for these three temperatures on the functional properties of the papaya seeds. Given the good physicochemical and functional characteristics of papaya seeds we can say that these seeds could be recommended to people suffering from obesity and digestive disorders.

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