Edible caterpillars of Imbrasia truncata and Imbrasia epimethea contain lipids and proteins of high potential for nutrition - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Food Composition and Analysis Année : 2019

Edible caterpillars of Imbrasia truncata and Imbrasia epimethea contain lipids and proteins of high potential for nutrition

Résumé

Imbrasia truncata and L epimethea caterpillars were evaluated as dietary protein and lipid sources. They contained approximately 7.0 g/100 g fresh weight (FW) of lipids and 20.0 g/100 g FW of proteins calculed with determined nitrogen to protein conversion factors: 6.01 +/- 0.21 and 6.27 +/- 0.15 for L truncata and I. epimethea, respectively. Unsaturated fatty acids represented about 2.63 +/- 0.21 g/100 g FW for L truncata and 3.24 +/- 0.21 g/100 g FW for L epimethea, with alpha-linolenic acid as major fatty acid (around 1.88 +/- 0.15 g/100 g FW for I. truncata 2.17 +/- 0.13 g/100 g FW for I. epimethea) and very low n-6/n-3 ratios: 0.15 (I. truncata) and 0.27 (I epimethea). Polar lipids (phospholipids and glycolipids + sulfolipids), representing between 4 and 6% of lipids, contained little amounts of arachidonic acid (C20:4n-6). The major tocopherol isomer was alpha-tocopherol in L truncata (0.52 +/- 0.08 g/100 g FW) and gamma-tocopherol in L epimethea (1.00 +/- 0.08 g/100 g FW). The proteins of both insect included all indispensable amino acids at amounts (mg/g protein) higher than the indispensable amino acid requirement patterns recommended by WHO/FAO/UNU (2007). In conclusion, Imbrasia caterpillars exhibit a great nutritional potential due to the presence of good quality proteins and healthy fat
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Dates et versions

hal-02613917 , version 1 (20-05-2020)

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Aymar Fogang, Germain Kansci, Michèle Viau, Rodolphe Rougerie, Claude Genot. Edible caterpillars of Imbrasia truncata and Imbrasia epimethea contain lipids and proteins of high potential for nutrition. Journal of Food Composition and Analysis, 2019, 79, pp.70-79. ⟨10.1016/j.jfca.2019.03.002⟩. ⟨hal-02613917⟩
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