Avaliação proteica e parâmetros populacionais de Cynaeus angustus Le Conte (Coleoptera: Tenebrionidae)
DOI:
https://doi.org/10.12741/ebrasilis.v9i2.561Keywords:
Entomofagia, Desenvolvimento populacional, Composição Proteica, Proteína de Insetos, Tabela de vida, Entomophagy, Insect Protein, Population development, Protein composition, Table of LifeAbstract
Resumo. Cynaeus angustus (LeConte) caracteriza-se como praga de grãos armazenados, possui diversos substratos alimentares listados em sua ecologia alimentar entre eles o milho, trigo, sorgo e soja. Porém não há registro de seus hábitos no amendoim in natura, assim o objetivo deste estudo foi apresentar a tabela de vida estática, para C. Angustus em condições de laboratório utilizando como substrato o amendoim, e avaliar a composição proteica nos diferentes estádios de desenvolvimento de C. angustus. A quantificação de proteínas foi feita pelo método de microbiureto e o método qualitativo foi feito per método eletroforético. Assim a quantificação de proteínas indicou um aumento de seus valores durante o desenvolvimento dos insetos: larvas 38,22 mg/mL, pupas 47,53 mg/mL e adultos de 60.00 mg/mL. Foi possível observar o perfil electroforético de C. angustus indicando um aumento significativo na variedade de proteínas (29 a 700 kDa) sobre as diferentes etapas deste inseto. Os dados obtidos pela analise populacional indicam que C. angustus apresenta maiores taxas iniciais de sobrevivência, alto potencial biótico e desenvolvimento contínuo em condições favoráveis que mostram potenciais condições de cultivo e pode ser usado como uma fonte nutricional tal como mencionado para outras espécies da mesma família.
Protein Evaluation and Static life Table Cynaeus angustus (LeConte) (Coleoptera: Tenebrionidae)
Abstract. Cynaeus angustus (LeConte) is characterized as a pest of stored grain, there is several food substrates on their feeding ecology including corn, wheat, sorghum and soybeans. But there is no record of their habits in peanut in natura, so the aim of this study was to present the static life table, to C. angustus in laboratory conditions using as substrate the peanut, and evaluate the protein composition in different stages of development C. angustus. The quantification of proteins was taken by microbiureto method and qualitative method was done per electrophoretic method. Protein quantitation indicated an increase of its values during development of insects: larvae 38,22 mg/mL, pupae 47,53 mg/mL and adults 60,00 mg/mL. It was possible to observe the electrophoretic profile C. angustus showed a significant increase in the variety of proteins (29-700 kDa) on the different stages of the insect. Data obtained from the population analysis indicate that C. angustus shows higher initial survival rates, high biotic potential and continuous developing in favorable conditions showing potential growing conditions and, that can be used as a nutritional source such as mentioned for other species of the same family.
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