The optimization of Aspergillus sp. GM4 tannase production under submerged fermentation

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Autor(es): dc.creatorMelo, Alessandra Gonçalves de-
Autor(es): dc.creatorPedroso, Rayssa Cristina Faria-
Autor(es): dc.creatorGuimarães, Luis Henrique Souza-
Autor(es): dc.creatorAlves, José Guilherme Lembi Ferreira-
Autor(es): dc.creatorDias, Eustáquio Souza-
Autor(es): dc.creatorResende, Mário Lúcio Vilela de-
Autor(es): dc.creatorCardoso, Patrícia Gomes-
Data de aceite: dc.date.accessioned2026-02-09T12:32:52Z-
Data de disponibilização: dc.date.available2026-02-09T12:32:52Z-
Data de envio: dc.date.issued2015-05-22-
Data de envio: dc.date.issued2015-05-22-
Data de envio: dc.date.issued2014-01-25-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/9653-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1163492-
Descrição: dc.descriptionTannase is a hydrolytic enzyme that is involved in the biodegradation of tannins and it has biotechnological po- tential in the pharmaceutical, chemical, food and beverage industries. Microorganisms, especially filamentous fungi, are important tannase producers. The aims of this work were to find a potential tannase producer and to improve the cultivation conditions. Three Aspergillus species (A. japonicus 246A, A. tamarii 3 and Aspergillus sp. GM4) were investigated in different culture media (Adams, Czapeck, Khanna, M5 and Vogel) and inducers (1% and 2% tannic acid; 1% green tea; 1% methyl gallate; 1% gallic acid). Aspergillus sp. GM4 and Adams medium were selected. The tannase production by Aspergillus sp. GM4 in Adams medium was induced in the presence of 2% (w/v) tannic acid and gallic acid as carbon sources, while green tea was not able to induce tannase produc- tion. The Plackett-Burman screening design was performed with the variables MgSO 4 , KH 2 PO 4 , yeast extract, tannic acid, agitation rate and salt solution. The variables MgSO 4 and agitation rate were selected for the opti- mization of tannase production using a Central Composite Rotatable Design. Under optimized conditions, a 2.66-fold increase in the enzyme production was observed with small modifications in the medium composition.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Publicador: dc.publisherScientific Research Publishing-
Direitos: dc.rightsacesso aberto-
???dc.source???: dc.sourceAdvances in Microbiology-
Palavras-chave: dc.subjectAspergillus sp.-
Palavras-chave: dc.subjectResponse surface methodology-
Palavras-chave: dc.subjectSubmerged fermentation-
Palavras-chave: dc.subjectTannase-
Palavras-chave: dc.subjectTannic acid-
Título: dc.titleThe optimization of Aspergillus sp. GM4 tannase production under submerged fermentation-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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