Nutritional content of edible grasshopper (Sphenarium purpurascens) fed on alfalfa (Medicago sativa) and maize (Zea mays) | Contenido nutricional de chapulín comestible (Sphenarium purpurascens) alimentado con alfalfa (Medicago sativa) y maíz (Zea mays)
Ibarra-Herrera, Celeste C. | Acosta-Estrada, Beatriz | Chuck-Hernández, Cristina | Serrano-Sandoval, Sayra N. | Guardado-Félix, Daniela | Pérez-Carrillo, Esther
Edible insects have been proposed as a good source of different nutrients including protein. However, the nutritional value of edible insects could be affected by several factors that must be considered in order to enhance their potential application in food. In this work, the effect of feeding two different diets, alfalfa and maize green fodder, on the chemical composition of edible grasshopper (Sphenarium purpurascens) consumed in Mexico was assessed. The dry matter, crude protein content, amino acid profile, in vitro protein digestibility, crude fat, and insoluble fiber content differed significantly between grasshoppers fed with alfalfa and maize (p-value < 0.05). Grasshoppers fed with alfalfa showed an increment of 10% in essential amino acid index and biological value compared to grasshopper fed with maize green fodder. Our results demonstrate that the nutritional composition of edible grasshopper S. purpurascens can be modified through diet resulting in an increase in its nutritional value.
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