Estudo e influência dos óleos essenciais de cravo, canela e laranja na preparação de filmes de poli (ácido lático): desenvolvimento de embalagens ativas

Autores

DOI:

https://doi.org/10.33448/rsd-v10i4.14340

Palavras-chave:

PLA; Óleos essenciais; Filmes; Atividade antimicrobiana.

Resumo

O poli (ácido lático) – PLA é um polímero biocompatível e biodegradável com algumas propriedades semelhantes aos polímeros convencionais, destacando-se em diversas aplicações, dentre elas, a indústria de embalagens. A substituição dos aditivos convencionais por componentes naturais como os óleos essenciais, vem tornando-se uma alternativa promissora para a produção das chamadas embalagens ativas, que promovem a segurança alimentar a partir da ação antimicrobiana. Sendo assim, o objetivo deste trabalho foi produzir filmes de PLA por casting aditivados com óleos essenciais (OE) de cravo, laranja e canela, para sua possível aplicação como embalagem ativa. Os óleos foram caracterizados por Cromatografia Gasosa acoplada com Espectrômetro de Massa (GC-MS), Espectroscopia no infravermelho com transformada de Fourier (FTIR) e por disco-difusão em ágar. Os filmes foram caracterizados por Microscopia óptica (MO), Calorimetria Exploratória Diferencial (DSC), FTIR, Análise Termogravimétrica (TG) e Análise antimicrobiana do filme. Com os resultados obtidos foi possível observar que o filme de PLA com os óleos essenciais apresentaram melhora no desempenho quanto a sua propriedade térmica e atividade antimicrobiana. Dentre os três filmes aditivados, o filme PLA/OE Cravo destacou-se por haver uma intensa ação bactericida sem degradação do filme, o que o torna um promissor aditivo adicionado ao PLA para aplicações em indústrias de embalagens.

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Publicado

18/04/2021

Como Citar

LIMA, J. C. da C.; PEREIRA, J. de C. N. .; ANDRADE , M. F. de; GÓIS , G. da S.; SIMÕES, I. T. de A.; SILVA , M. A. A. D. da; ALMEIDA , Y. M. B. de .; VINHAS , G. M. . Estudo e influência dos óleos essenciais de cravo, canela e laranja na preparação de filmes de poli (ácido lático): desenvolvimento de embalagens ativas. Research, Society and Development, [S. l.], v. 10, n. 4, p. e41810414340, 2021. DOI: 10.33448/rsd-v10i4.14340. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/14340. Acesso em: 22 nov. 2024.

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Seção

Ciências Agrárias e Biológicas