BIODEGRADAÇÃO DE COPOLÍMERO ACRÍLICO-ESTIRENADO COM REDUÇÃO DE EFEITO TÓXICO EM CUCUMIS ANGURIA L.
DOI:
https://doi.org/10.61164/rmnm.v9i1.3939Palavras-chave:
Biorremediação, Ecotoxicidade, ResinasResumo
Polímeros sintéticos oferecem diversas aplicações na indústria, mas sua persistência no ambiente representa um desafio. Este trabalho avaliou a utilização de um copolímero acrílico-estirenado (CAE) como fonte de carbono por Pseudomonas aeruginosa TGC04 e os efeitos ecotoxicológicos dos metabólitos sobre a germinação e desenvolvimento de Cucumis anguria L. (maxixe-do-norte). O experimento foi realizado em frascos contendo meio mineral mínimo adicionado com CAE 1%, e incubado por 72h à 30ºC. A redução do contaminante foi de 5,01%, determinada por gravimetria. Isto resultou na recuperação parcial do desenvolvimento da planta, comparada ao controle, demonstrando uma diferença significativa na massa da raiz (p=0,041) e tendência à significância na massa da parte aérea (p=0,065), i.e., caule e folhas. Como conclusão, P. aeruginosa TGC04 exibiu potencial para uso na biorremediação.
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