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État des lieux des mesures de prophylaxie sanitaire dans les élevages de poulets de chairs, souche COBB 500, dans le département de Korhogo (Côte d'Ivoire) 12717

This study aims to investigate the evolution, throughout the harvest season, of merchantability criteria and Ochratoxin A (OTA) levels in cocoa beans produced in Cote d'Ivoire. To this end, 567 samples of cocoa beans, collected in 6 production areas during the 2007-2008 season, were analyzed. Merchantability and OTA levels were determined respectively according to the Ivorian Coffee and Cocoa stock exchange standards and the European Community regulation related to the analytical methods for the control of mycotoxins levels in foodstuffs (EC 401/2006). Concerning merchantability, a significant difference at 5% risk was revealed between the values of moisture, graining and grades. As regards OTA levels, the concentrations obtained ranged from 0.41 µg/kg to 1.36 µg/kg of cocoa beans with an average concentration of 0.69 µg/kg. These concentrations are all below the maximum value set at 2 µg/kg by the European Commission. Moldy and/or slaty beans are chiefly answerable for the depreciation of cocoa beans marketability. These results served to devise a map summarizing the quality of Ivorian cocoa beans. Needless to say, this map is just a representation of a situation at a given time, and should therefore contribute to take up decisions relevant to the application of good production and postharvest processing practices in the country’s quest for cocoa beans of prime quality.

Aims: To measure their possible beneficial contributions on the rabbits’ health, Borassus aethiopum ripe fruits’ peels and combined peel-pulp were dried at 60, 65, 70 and 75oC. Place and Duration of Study: On January and February 2023, Borassus aethiopum ripe fruits were collected within the graduate school of agronomy at the National Polytechnic Institute Felix Houphouët Boigny in Yamoussoukro, Côte d’Ivoire. Methodology: The unspoiled fruits were peeled. One sample was composed of peels without the pulps, and a second was composed of peel and pulp combined. Following, they were dried during 5 days in ovens. Then, the products were crushed, and sieved. Thereafter, the products were extracted with distilled water through maceration and decoction for 1 hour. Afterwards, total phenols (TP), total flavonoids (TF), condensed tannins (TC) contents, and antioxidant activity (AOA) were assessed. Results: The best extracts were obtained through decoction. Moreover, the peels presented the highest TP extract for 0.082+/-0.001 mg GAE/g at 70oC. Whereas the lowest TP extract was observed in the combined peel-pulp dried at 70oC for 0.067+/-0.001 mg GAE/g. However, concerning the TF, the peel-pulp dried at 75oC gave the best extracts through maceration, for 0.0450+/-0.007 mg QE/g. Globally, results revealed that the peels contain higher flavonoid contents than the combined peel-pulp. Regarding AOA, the extracts had much higher free radical scavenging capacity in the peels than in the combined peel-pulp parts. The highest antioxidant activity was observed with the peels dried at 70oC for 6.653+/-0.075 μmol TE/g, while the lowest value was observed with the combined peel-pulp dried at 70oC for 1.996+/-0.075 μmol TE/g. With condensed tannins, the best output was obtained with the peel dried at 60oC for 0.468+/-0.003 µg CatE/g. Conclusion: Borassus aethiopum ripe fruits’ parts can be dried between 65 and 70oC. So, they could be good sources of fibres and phytochemicals for rabbits’ diets.

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