Insetos comestíveis. Avaliação nutricional de duas espécies comercializadas em Portugal
2015
Wemans, Maria da Piedade Cabral da Camara | Martins, Margarida Moldão | Figueiredo, Elisabete
Mestrado em Engenharia Alimentar - Ramo de Processamento de Alimentos - Instituto Superior de Agronomia
Show more [+] Less [-]For centuries, insects have played an important role in food, not only for primates but also humans. Insects are considered a valuable resource used by several populations across the world, due to palatability, beliefs, cultural traditions, but mainly because of its nutritional value. The main purpose of this study was to analyze larvaes of Tenebrio molitor and crickets Acheta domesticus as possible food source. Both species have been acquired directly from an insects’ productor and afterwards freeze-dried. The samples reflect high protein contents, 45% for A. domesticus, 44% for T. molitor, and a crude fat level of 18% for both of them. Fatty acids have been quantified unveiling that percentages of 28,9% and 32,9% of the total amount of crude fat of A. domesticus and T. molitor represent essential fatty acids (linoleic and α-linolenic). Furthermore both species may be considered as mineral sources due to essential microelements content of iron and zinc (8.65 and 9.2 mg of iron /100g d.m. and 8.15 and 6.17 mg of zinc /100g d.m. for A. domesticus and T. molitor respectively) and also manganese content (2.5 mg/100g d.m., for A. domesticus)
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