Influence of Organic Fertilization on the Physico-Chemical and Organoleptic Quality of Attiekes of Three Varieties of Cassava (Manihot esculenta C.)
Serge Couhoulé Allou *
Laboratory of Food Biochemistry and Tropical Products Technology, Department of Food Science and Technology, University Nangui Abrogoua, Côte d'Ivoire, 02 BP 801 Abidjan 02, Côte d'Ivoire.
Catherine Bomoh Ebah
National Center for Agronomic Research, Laboratory of Chemistry-Technology of Technological Research Station, Côte d'Ivoire, 01 BP 1740 Abidjan 01, Côte d'Ivoire.
Jean-Baptiste Gnelie Gnahoua
National Center for Agronomic Research, Laboratory of Chemistry-Technology of Technological Research Station, Côte d'Ivoire, 01 BP 1740 Abidjan 01, Côte d'Ivoire.
Bilo Régis Jean-François LOA
Laboratory of Food Biochemistry and Tropical Products Technology, Department of Food Science and Technology, University Nangui Abrogoua, Côte d'Ivoire, 02 BP 801 Abidjan 02, Côte d'Ivoire.
FrançoiseAkissi Kouamé
Laboratory of Food Biochemistry and Tropical Products Technology, Department of Food Science and Technology, University Nangui Abrogoua, Côte d'Ivoire, 02 BP 801 Abidjan 02, Côte d'Ivoire.
*Author to whom correspondence should be addressed.
Abstract
Cassava occupies an important place in the food security of populations in Côte d'Ivoire. There are many products derived from cassava but«attiéké» remains the flagship product in Côte d'Ivoire. Faced with the productivity challenges, organic fertilization is increasingly used by farmers in order to sustainably increase cassava production. The perspective of our study is to assess the effects of the uncombined use of cowpea and poultry manure as organic soil fertilizers on certain physicochemical and sensory characteristics of «attiékés» of three varieties of cassava. To do this, on an experimental plot installed, cowpea fertilization was tested at planting densities of 62,500; 250,000 and 125,000 plants/ha and poultry manure at rates 5; 15 and 5 t/haon, respectively, the cassava varieties Yavo, BoCou1 and Yacé.The results obtained show that cowpea and poultry manure increased the dry matter content respectively by 3.99 and 3.53 % in the Yavo variety by 3.57 and 18.06 % in the BoCou 1 as well as by 17.43 and 17.64 % in the Yacé. For the other parameters of pH, titratable acidity, total carbohydrates and free glucose, the variations depended on the variety and the level of fertilization. The sensory attributes of attiekes from these varieties grown on fertilized soil have been accepted by consumers in terms of color, smell, taste and consistency. In addition, they were rated less good than the controls obtained without fertilizer due to color, taste and consistency, while in terms of odor, it would be the same rating.
Keywords: «attiéké», fertilization, cassava, physico-chemical, sensory