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Valorização de biomassa de insetos através do desenvolvimento de técnicas de processamento inovadoras
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Com o decurso do tempo, têm-se intensificado os esforços no sentido da resolução dos desafios globais. Neste quadro, a Organização das Nações Unidas (ONU) definiu um conjunto de Objetivos de Desenvolvimento Sustentável (ODS), entre os quais sobressai o combate à fome. No âmbito deste ODS, têm sido conduzidas diversas investigações, algumas com resultados promissores do ponto de vista da aplicação prática, mas cuja disponibilidade no mercado permanece limitada. É neste contexto que se insere a Agenda Mobilizadora InsectERA. A InsectERA visa potenciar a interligação entre entidades de investigação e desenvolvimento (I&D) e os demais intervenientes do setor agroalimentar, de modo a fomentar a acessibilidade a soluções inovadoras baseadas em insetos e seus derivados. Para o efeito, foram estabelecidas parcerias com operadores como a Auchan e a Casa Mendes Gonçalves, no domínio da distribuição e comercialização, bem como com instituições académicas e centros de investigação, designadamente a Universidade Nova de Lisboa e a Universidade de Aveiro. Até à presente data, os insetos contemplados no projeto InsectERA incluem Tenebrio molitor (TM), Hermetia illucens (HI) e Acheta domesticus (AD). O presente estudo concentra-se na extração e otimização do óleo de Hermetia illucens, com vista à sua incorporação em matrizes alimentares humanas e animais. Estes óleos poderão ainda no futuro ser usados na cosmética ou até mesmo como lubrificantes ou ceras. A Agenda Mobilizadora InsectERA contribui, assim, para reforçar a competitividade e a resiliência da economia portuguesa, através da colaboração estratégica entre organizações de I&D e operadores do setor. O presente trabalho consistiu na realização da extração sólido-líquido de óleo de larvas desidratadas da Hermetia illucens fornecidas pela Entogreen, que também integra a Agenda InsectERA. Foram usadas técnicas de extração sólido-líquido recorrendo a solventes verdes para a obtenção do óleo de várias amostras de HI (0,5 g), sempre à temperatura ambiente. Com recurso a métodos estatísticos, realizou-se a seleção do melhor solvente verde a usar na extração de óleo a partir da farinha de inseto utilizando técnicas gravimétricas. Selecionou-se ainda o volume e o tempo de contacto ideais para extrações máximas, procedendo-se depois a um scale-up laboratorial (500 g). Os extratos foram caracterizados ao nível da composição lipídica utilizando técnicas clássicas. Por espetroscopia de ressonância magnética nuclear (RMN) foi possível concluir que o extrato é essencialmente composto por triacilgliceróis (TAGs). Este resultado correlaciona bem com o obtido anteriormente para o TM. O rendimento máximo de extração foi de cerca de 30%, também em linha com o obtido para o TM. Este rendimento revela que se extraiu quase a totalidade do óleo esperado para o HI.
Over time, efforts to address global challenges have intensified. In this context, the United Nations (UN) defined a set of Sustainable Development Goals (SDGs), among which the fight against hunger stands out. Within the scope of this SDG, several studies have been conducted, some with promising results from a practical perspective, but their market availability remains limited. It is within this context that the InsectERA Mobilizing Agenda fits in. InsectERA aims to strengthen the interconnection between research and development (R&D) entities and other actors in the agrifood sector, in order to foster accessibility to innovative solutions based on insects and their derivatives. To this end, partnerships have been established with operators such as Auchan and Casa Mendes Gonçalves, in the field of distribution and marketing, as well as with academic institutions and research centers, especially the Universidade Nova de Lisboa and the Universidade de Aveiro. To date, the insects covered by the InsectERA project include Tenebrio molitor (TM), Hermetia illucens (HI), and Acheta domesticus (AD). This study focuses on the extraction and optimization of Hermetia illucens oil, with a view to its incorporation into human and animal food matrices. These oils could also be used in cosmetics or even as lubricants or waxes in the future. The InsectERA Mobilizing Agenda therefore contributes to strengthening the competitiveness and resilience of the Portuguese economy through strategic collaboration between R&D organizations and industry operators. This work consisted of performing solid-liquid oil extraction from dehydrated larvae of Hermetia illucens supplied by Entogreen, which is also part of the InsectERA Agenda. Solid-liquid extraction techniques using green solvents were employed to obtain oil from several samples of HI (0.5 g), always at room temperature. Using statistical methods, the best green solvent to use in oil extraction from insect meal was selected using gravimetric techniques. The ideal volume and contact time for maximum extractions were also selected, and a laboratory scale-up (500 g) was then performed. The extracts were characterized in terms of lipid composition using classical techniques. Nuclear magnetic resonance (NMR) spectroscopy revealed that the extract is essentially composed of triacylglycerols (TAGs). This result correlates well with that previously obtained for TM. The maximum extraction yield was approximately 30%, also in line with that obtained for TM. This yield reveals that almost all the oil expected for HI was extracted.
Over time, efforts to address global challenges have intensified. In this context, the United Nations (UN) defined a set of Sustainable Development Goals (SDGs), among which the fight against hunger stands out. Within the scope of this SDG, several studies have been conducted, some with promising results from a practical perspective, but their market availability remains limited. It is within this context that the InsectERA Mobilizing Agenda fits in. InsectERA aims to strengthen the interconnection between research and development (R&D) entities and other actors in the agrifood sector, in order to foster accessibility to innovative solutions based on insects and their derivatives. To this end, partnerships have been established with operators such as Auchan and Casa Mendes Gonçalves, in the field of distribution and marketing, as well as with academic institutions and research centers, especially the Universidade Nova de Lisboa and the Universidade de Aveiro. To date, the insects covered by the InsectERA project include Tenebrio molitor (TM), Hermetia illucens (HI), and Acheta domesticus (AD). This study focuses on the extraction and optimization of Hermetia illucens oil, with a view to its incorporation into human and animal food matrices. These oils could also be used in cosmetics or even as lubricants or waxes in the future. The InsectERA Mobilizing Agenda therefore contributes to strengthening the competitiveness and resilience of the Portuguese economy through strategic collaboration between R&D organizations and industry operators. This work consisted of performing solid-liquid oil extraction from dehydrated larvae of Hermetia illucens supplied by Entogreen, which is also part of the InsectERA Agenda. Solid-liquid extraction techniques using green solvents were employed to obtain oil from several samples of HI (0.5 g), always at room temperature. Using statistical methods, the best green solvent to use in oil extraction from insect meal was selected using gravimetric techniques. The ideal volume and contact time for maximum extractions were also selected, and a laboratory scale-up (500 g) was then performed. The extracts were characterized in terms of lipid composition using classical techniques. Nuclear magnetic resonance (NMR) spectroscopy revealed that the extract is essentially composed of triacylglycerols (TAGs). This result correlates well with that previously obtained for TM. The maximum extraction yield was approximately 30%, also in line with that obtained for TM. This yield reveals that almost all the oil expected for HI was extracted.
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ONU InsectERA Hermetia illucens Óleo Extrações sólido-líquido UN Oil Solid-liquid extractions