EKOUA REGINA KRABI, TOURE MAMADOU, KOHI ALFRED KOUAME, KOFFI MAÏZAN JEAN-PAUL BOUATENIN, MARINA KOUSSEMON AND SEBASTIEN NIAMKE
Abstract
Côte dâIvoire is still dependent on foreign markets for animal protein, despite the efforts made by the Ivorian government. This dependence is linked to several factors, including the non-pastoral nature of the Ivorian people and, above all, the increasingly high price of animal feed. Consequently, the use of agricultural by-products in the formulation of animal feed is a necessity. Thus, the general objective of this study is to contribute to the valorization of pineapple (Ananas comosus) and cassava (Manihot esculenta) peelings with a view to formulating high-performance animal feeds. To this end, the Physico-chemical, antioxidant, anti-nutritional and mineral properties of cassava and pineapple by-products were determined. The results of the analyses showed that the dry matter content was 82.1 ± 0.17 and 81.5 ± 0.19 % for cassava and pineapple by-products. The pineapple by-product records a high ash content of 5.6±0.07 %, reducing sugars 2.1±0.03 %; protein 5.5±0.04 %; fiber 25.5±0.08 %; Flavonoid 120±0.86 % and oxalate 1554.7±16.80 %. However, the high content of Tannin 74.9±0.40 %; Lipid 1.5±0.21 %; Antioxidant activity 53.45±0.23 %; Polyphenol 139.37±2.08 % and Phytate 349.29±1.26 % was recorded in the cassava by-product. However, the cassava by-product is richer in minerals than the pineapple by-product, with the exception of potassium. The potassium content of the pineapple by-product (34.21±0.27 mg/100 g) is higher than that of cassava (21.11± 0.13 mg/100 g). Furthermore, the level of AMGs contamination of these by-products was (1.9 ± 0.01) Ã101 CFU /g and that of cassava was (1.8 ± 0.3) Ã101 CFU/g in cassava. These AMGs consisted only of Staphylococcus aureus.