Produção e caracterização da amilase obtida de Rhizopus microsporus var. oligosporus

Autores

DOI:

https://doi.org/10.33448/rsd-v9i7.4810

Palavras-chave:

Biocatálise; Termoestabilidade; Metodologia de Superfície de Resposta.

Resumo

As amilases possuem a capacidade de catalisar a ligação α-1,4 do amido liberando glicose e dextrina, com destaque em diversos campos industriais. A pesquisa buscou caracterizar a enzima amilase obtida do fungo Rhizopus microsporus var. oligosporus, através da metodologia de Doehlert, avaliando o comportamento da enzima frente as variações de pH e temperatura. A produção da amilase ocorreu com a utilização do amido como indutor, e a caracterização foi realizada através da metodologia de superfície de resposta, com a análise do pH em 5 níveis (3,0, 4,0, 5,0, 6,0 e 7,0) e temperatura em 3 níveis (30, 50 e 70 °C).  A avaliação da termoestabilidade da amilase ocorreu à 60, 70 e 80ºC. A aplicação do modelo experimental indicou que a amilase obtida de R. microsporus var. oligosporus apresenta melhor desenvolvimento catalítico em temperaturas entre 40ºC e 55ºC e pH entre 2,5 e 3,2. A avaliação da termoestabilidade indicou que o aumento da temperatura influencia negativamente na atividade catalítica da amilase. O modelo experimental conduziu à compreensão das condições favoráveis à produção de amilases de R. microsporus var. oligosporus.

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Publicado

04/06/2020

Como Citar

SANTOS, I. R.; MENDES, T. P. S.; MIRANDA, A. C. dos A.; COSTA, D. N.; FIGUEROA, G. M.; SOARES, V. D. M.; VALASQUES JUNIOR, G. L.; CEDRO, P. Évelin P. Produção e caracterização da amilase obtida de Rhizopus microsporus var. oligosporus. Research, Society and Development, [S. l.], v. 9, n. 7, p. e694974810, 2020. DOI: 10.33448/rsd-v9i7.4810. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/4810. Acesso em: 27 set. 2024.

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Seção

Ciências Exatas e da Terra