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Effect of Desmodium intortum and black soldier fly larvae (Hermetia illucens) based meal on sensory and physicochemical properties of broiler chicken meat in Kenya

In: Journal of Insects as Food and Feed
Authors:
M.M. Mutisya International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya.
Department of Animal Science, Jomo Kenyatta University of Agriculture and Technology (JKUAT), P.O. Box 62000-00200, Nairobi, Kenya.

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S.B.S. Baleba International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya.
Max Planck Institute for Chemical Ecology, Department of Evolutionary Neuroethology, Hans-Knöll-Straβe 8, 07745 Jena, Germany.

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J.N. Kinyuru Department of Food Science and Technology, Jomo Kenyatta University of Agriculture and Technology (JKUAT), P.O. Box 62000-00200, Nairobi, Kenya.

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C.M. Tanga International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya.

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M. Gicheha Department of Animal Science, Jomo Kenyatta University of Agriculture and Technology (JKUAT), P.O. Box 62000-00200, Nairobi, Kenya.

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G. Hailu International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya.

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D. Salifu International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya.

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J. Egonyu International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya.

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X. Cheseto International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya.

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S. Niassy International Centre of Insect Physiology and Ecology (icipe), P.O. Box 30772-00100, Nairobi, Kenya.

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https://orcid.org/0000-0003-1061-4041
Open Access

We evaluated the effect of dietary inclusion of different ratios of Desmodium intortum (DI) and black soldier fly larvae meal (BSFLM) on sensory traits and physicochemical qualities of broiler chicks meat. Three formulations: T1:75%BSFL:25%DI; T2:50%BSFL:50DI, and T3:25BSFL:75% DI as a protein source were tested. A conventional feed was used as the control diet. On day 42, the chickens were slaughtered, and thigh muscles were used for sensory and physicochemical evaluations. T1 was preferred for its flavour and tenderness, T2 for its juiciness and T3 for its colour, flavour, taste and overall acceptability scores. In terms of physical properties, all three types of meat had significantly lower moisture content and a higher water holding capacity than the control. T3 had the lowest moisture content, cooking loss and pH, whereas the meat from control diet had the highest cooking loss and pH. No significant differences were found in terms of meat lightness; however, meat from control diet showed the highest redness value, and T3 had the highest yellowness value. Dietary inclusion of DI-BSFL affected the fatty acid and cholesterol profiles of the meats. A holistic Principal Component Analysis indicated that the tested meats were distinct in their sensory and physicochemical properties. These variations in physicochemical properties may account for the difference in organoleptic perception, especially for T3. Further research should focus on feed modulation in relation to consumers’ preference and potential health benefits.

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