Caracterização molecular e bioquímica de micróbios biodegradadores de resíduos sólidos isolados da lixeira municipal da cidade de Karachi

Resumo

O presente estudo visou determinar os microrganismos produtivos para a biodegradação de resíduos. Foram recolhidas dez amostras de diferentes áreas de depósitos de resíduos de Karachi. A identificação e caracterização dos isolados foram feitas através de testes morfológicos e bioquímicos. Os micróbios isolados foram selecionados qualitativamente para a ação de fazer bio-enzimas industriais chave. Os potenciais micróbios produtores de enzimas foram submetidos a um teste de degradação de resíduos durante 90 dias. Registaram-se alterações no odor, na cor e na perda de peso do lixo em decomposição. A maior capacidade de degradação em termos de perda de peso foi demonstrada por Aspergillus (SSI14) e Bacillus (SSI6). Foram escolhidos quatro metais (sulfato de zinco, cloreto de cádmio, sulfato de cobre e sulfato de ferro) para o ensaio de tolerância dos metais e para a concentração mínima inibitória (MIC) das estirpes microbianas isoladas. O estudo atual relatou que Zn foi considerado mais letal em comparação com e Fe. A identificação molecular dos micróbios isolados foi feita por reação em cadeia de polimerase. As estirpes microbianas foram caracterizadas pela reação em cadeia de polimerase (PCR) seguida de confirmação do produto por eletroforese de gel de agarose. As descobertas podem ser servidas como dados de base para desenvolver aparelhos microbianas para a biodegradação e gestão de resíduos sólidos.

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Publicado
2023-06-06
Como Citar
AFSHAN, Naheed et al. Caracterização molecular e bioquímica de micróbios biodegradadores de resíduos sólidos isolados da lixeira municipal da cidade de Karachi. Acta Brasiliensis, [S.l.], v. 7, n. 1, p. 7-13, jun. 2023. ISSN 2526-4338. Disponível em: <http://revistas.ufcg.edu.br/ActaBra/index.php/actabra/article/view/629>. Acesso em: 03 jul. 2024. doi: https://doi.org/10.22571/2526-4338629.
Seção
Microbiologia