Data/hora: 06/06/2024 14:54:08

Provedor de dados: 	Acta Scientiarum: Biological Sciences	
País: 	Brazil	
Título: 	Optimization of asparaginase production from Zymomonas mobilis by continuous fermentation	
Autores: 	Menegat, Francieli Bortoluzzi; Baldo, Cristiani; Celligoi, Maria Antonia Pedrine Colabone; Buzato, João Batista.	
Data: 	2016-10-24	
Ano: 	2016	
Palavras-chave: 	Sucrose; Asparagine; Yeast extract; Enzyme; Microbial production; Factorial design.	
Resumo: 	Asparaginase is an enzyme used in clinical treatments as a chemotherapeutic agent and in food technology to prevent acrylamide formation in fried and baked foods. Asparaginase is industrially produced by microorganisms, mainly gram-negative bacteria. Zymomonas mobilis is a Gram-negative bacterium that utilizes glucose, fructose and sucrose as carbon source and has been known for its efficiency in producing ethanol, sorbitol, levan, gluconic acid and has recently aroused interest for asparaginase production. Current assay optimizes the production of Z. mobilis asparaginase by continuous fermentation using response surface experimental design and methodology. The studied variables comprised sucrose, yeast extract and asparagine. Optimized condition obtained 117.45 IU L-1 with dilution rate 0.20 h-1, yeast extract 0.5 g L-1, sucrose 20 g L-1 and asparagine 1.3 g L-1. Moreover, carbon:nitrogen ratio (1:0.025) strongly affected the response of asparaginase activity. The use of Z. mobilis by continuous fermentation has proved to be a promising alternative for the biotechnological production of asparaginase. 	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/31057

10.4025/actascibiolsci.v38i2.31057	
Editor: 	Universidade Estadual De Maringá	
Relação: 	http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/31057/pdf	
Formato: 	application/pdf	
Fonte: 	Acta Scientiarum. Biological Sciences; v. 38, n. 2 (2016); 163-168

Acta Scientiarum. Biological Sciences; v. 38, n. 2 (2016); 163-168

1807-863X

1679-9283	
Fonte: 	Direitos autorais 2016 Acta Scientiarum. Biological Sciences