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Objectif: Cette etude a pour but d’etablir la cartographie de la composition biochimique et nutritionnelle de la farine de la chenille Imbrasia oyemensis sechee. En effet, cet animal jadis prise par les societes traditionnelles connait de nos jours un abandon systematique au profit d’autres sources proteiques animales beaucoup plus vulgarisees dans le cadre de la consommation. Methodologie et resultats: Apres une analyse chimique par les methodes standards (AOAC) au laboratoire, la composition de cet animal a ete determinee : 7,19 g d’eau et de 2,36 g de cendres pour 100g de farine. Les cendres contiennent : du potassium 61 mg/100g de MS, calcium 51,1 mg/100gMS, magnesium 20,8 mg/100gMS et du phosphore 51,4 mg/100g MS. La teneur en oligoelements tels que le fer, le zinc, le cuivre, le manganese, le molybdene et le selenium sont respectivement de 702,14 mg/100gMS, 111,85 mg/100gMS, 48,09 mg/100gMS, 3879 mg/100gMS, 850 mg/100gMS et 309,8 mg/100g MS. Les taux de sucres totaux et reducteurs sont respectivement de 0,55g et 0,08g/100gMS. 23,10 g de matieres grasses contiennent comme acides: laurique 0,6% , myristique 0,49%, stearique 9,05%, oleique 38,53%, linoleique 12,28%, linoleique 0,58%, gadoleique 0,82% et palmitique 1,01%. Par ailleurs, les acides satures et insatures s’elevent respectivement a 52,23% et 47,77% de la totalite des acides gras. En outre, les indices de saponification, d’iode, d’acide et de peroxyde sont successivement de 149,22 ; 51,07 ; 10,87 et 7,4. L’acidite oleique et les insaponifiables sont de 5,6% et 1,49%. Cette farine est composee de 55,49g/100MS de proteine et comporte dans son profil 9 acides amines essentiels: la leucine 6,85%, isoleucine 5,58%, lysine 8,98%, threonine 7,99%, valine 6,11%, methionine + cysteine 0.418% et la phenylalanine+ tyrosine 8,83%. Les acides amines nonessentiels sont : histidine 12%, tryptophane 2,08%, serine 6,12%, glycine 7,99%, proline 5,92% et l’alanine 7,04%. La valeur energetique de 100g de matieres seches etait evaluee a 477 Kcal. Cette valeur nutritive est voisine de celle de la viande et du poisson qui sont plus onereux pour les populations plus demunies. Conclusion et application des resultats: Ces chenilles constituent donc une source riche en proteine animale et une securite alimentaire pouvant garantir le bon equilibre proteino-energetique de l’Homme. Mots cles: acides gras, acides amines, Imbrasia oyemensis , valeur nutritionnelle English Title: Biochemical and nutritional study of dried powder from caterpillars Imbrasia oyemensis eaten in west of Cote d’Ivoire English Abstract Objective: This study aims to evaluate the biochemical and nutritional composition of the flour of dried Imbrasia oyemensis caterpillar. Indeed, this Caterpillar was once prized by traditional societies But has been abandoned for other more popular animal proteins. Methods and Results: After chemical analysis by the standard methods (AOAC) in the laboratory, the composition of this insect was determined as 7.19 grams of water and 2.36 g of ash per 100g flour. The ash contains Potassium 61 mg/100g/dw, calcium 51.1 mg/100gdw, magnesium 20.8 mg/100gdw and phosphorus 51.4 mg/100gdw. The micro-nutrient content such as iron, zinc, copper, manganese, molybdenum and selenium were respectively 702.14 mg/100gdw, 111.85 mg/100gdw, 48.09 mg/100gdw, 3879 mg/100gdw, 850 mg /100gdw and 309.8 mg/100gdw. The rates of total and reducing sugars were 0.55g and 0.08g/100gdw,. 23.10g. Fat contained as acid: 0.6% lauric, myristic 0.49%, 9.05% stearic, oleic 38.53%, 12.28% linoleic, linolenic 0.58%, gadoleic 0, 82%, palmitic and 1.01%. Furthermore, saturated and unsaturated acids amounted to 52.23% and 47.77% respectively of the total fatty acids. In addition, the saponification index, acid and iodine peroxide are successively 149.22; 51.07; 10.87 and 7.4. Oleic acid and unsaponifiables were 5.6% and 1.49%. This flour contained 55.49g/100gdw of proteins whom 9 essential : 6.85% leucine, isoleucine 5.58%, 8.98% lysine, threonine 7.99%, 6.11% valine, methionine + cysteine 0.418% tyrosine and phenylalanine + 8.83%. Non-essential amino acids : histidine 12%, tryptophan 2.08%, serine 6.12%, 7.99% glycine, 5.92% proline and alanine 7.04%. The energy value of 100 g of dry matter was estimated at 477 Kcal. This nutritional value is similar to that of meat and fish that are more costly for the poorest populations. Conclusion and application of the results: These caterpillars are thus a rich source of animal protein and food security can guarantee the proper human protein-energy balance. Keywords: Fat, Fatty acids, amino- acids, Imbrasia oyemensis , nutritional value

journal of applied biosciences

Étude de la qualité biochimique et nutritionnelle de la poudre séchée d’&lt;i&gt;Embrasai oyemensis&lt;/i&gt;, chenilles consommées au Centre-Ouest de la Côte d’Ivoire