Revisão bibliográfica sobre comparação de metodologias convencionais de extração de óleos essenciais
Data
2022-11-22
Autores
Costa, Leonardo Duarte da 
Orientadores
La Scalea, Mauro Aquiles
Tipo
Trabalho de conclusão de curso
Título da Revista
ISSN da Revista
Título de Volume
Resumo
Óleos essenciais de origem vegetal têm sido cada vez mais utilizados, não só como matéria-prima em diversos tipos de produtos de higiene e limpeza, mas também como alternativa no tratamento de problemas da saúde pela população em geral. Por terem baixo rendimento na extração, a escolha do método a ser utilizado é de extrema importância na indústria, uma vez que, falhas nesta etapa do processo podem influenciar na qualidade e também na quantidade de óleo essencial extraído. Atualmente, empresas de saúde e beleza tem sido alvo de críticas por não possuírem práticas de negócios ambientalmente amigáveis. No entanto, com o avanço do movimento de sustentabilidade, esse setor se tornou cada vez mais consciente da necessidade urgente de mudança. Sendo assim, o objetivo deste trabalho é reunir os métodos de extração de óleos essenciais, traçando uma comparação entre métodos convencionais e sustentáveis, além da viabilidade das técnicas encontradas. Os métodos de extração abordados foram a hidrodestilação, a extração por solventes orgânicos, a prensagem a frio, a extração por micro-ondas, a extração por ultrassom e por fim, a extração por solventes verdes. Através de uma revisão bibliográfica utilizando artigos científicos e livros sobre o tema, foram traçadas as principais vantagens e desvantagens de cada método. Os principais critérios avaliados foram: a pureza e diversidade dos extratos obtidos, gastos econômicos envolvidos, alinhamento com os princípios da Química Verde e o interesse das indústrias nas metodologias escolhidas.
Essential oils of vegetal sources have been increasingly used, not only as a raw material in different types of hygiene and cleaning products but also as an alternative in the treatment of health problems by the population. As they have low extraction yields, the choice of the method to be used is crucial in the industry, since failures in this stage of the process can influence the quality and quantity of essential oil extracted. Currently, health and beauty companies have been the target of criticism for not having environmentally friendly business practices. However, with the advancement of the sustainability movement, this area has become increasingly aware of the urgent need for change. Therefore, the goal of this work is to investigate the methods for essential oil extraction, drawing a comparison between conventional and sustainable methodologies and the feasibility of the techniques found. The extraction methods covered were hydrodistillation, extraction by organic solvents, cold pressing, microwave extraction, ultrasound extraction, and finally, extraction by green solvents. Through a literature review using scientific articles and books on the topic, the main advantages and disadvantages of each method were outlined. The main criteria evaluated were: the purity and diversity of the extracts obtained, economic expenses involved, alignment with the principles of Green Chemistry, and the interest of the industries in the chosen methodologies.
Essential oils of vegetal sources have been increasingly used, not only as a raw material in different types of hygiene and cleaning products but also as an alternative in the treatment of health problems by the population. As they have low extraction yields, the choice of the method to be used is crucial in the industry, since failures in this stage of the process can influence the quality and quantity of essential oil extracted. Currently, health and beauty companies have been the target of criticism for not having environmentally friendly business practices. However, with the advancement of the sustainability movement, this area has become increasingly aware of the urgent need for change. Therefore, the goal of this work is to investigate the methods for essential oil extraction, drawing a comparison between conventional and sustainable methodologies and the feasibility of the techniques found. The extraction methods covered were hydrodistillation, extraction by organic solvents, cold pressing, microwave extraction, ultrasound extraction, and finally, extraction by green solvents. Through a literature review using scientific articles and books on the topic, the main advantages and disadvantages of each method were outlined. The main criteria evaluated were: the purity and diversity of the extracts obtained, economic expenses involved, alignment with the principles of Green Chemistry, and the interest of the industries in the chosen methodologies.
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Revisão bibliográfica sobre comparação de metodologias convencionais de extração de óleos essenciais