Data/hora: 01/06/2024 10:21:58

Provedor de dados: 	52	
País: 	Brazil	
Título: 	Growth, sporulation and production of bioactive compounds by Bacillus subtilis R14	
Autores: 	Carvalho,André Lacerda Ulysses de; Oliveira,Fábio Henrique Portella Corrêa de; Mariano,Rosa de Lima Ramos; Gouveia,Ester Ribeiro; Souto-Maior,Ana Maria.	
Data: 	2010-06-01	
Ano: 	2010	
Palavras-chave: 	Bacillus subtilis; Batch cultivation; Oxygen availability; Antimicrobial activity.	
Resumo: 	The physiology of B. subtilis R14 was investigated in minimal medium under excess-oxygen and oxygen-limited conditions. Growth and efficient sporulation could be achieved in excess-oxygen culture on medium with readily metabolizable carbon and nitrogen sources, which allowed high growth rate and high biomass yield. A short transition phase between the exponential growth and sporulation could be attained by formulating a medium with a well-balanced C/N ratio. Under oxygen-limitation, but in the presence of essential nutrients (i.e. excess-nutrient cultivation), B. subtilis R14 produced bioactive compounds, which showed activity against several phytopathogenic bacteria. Under anaerobic condition, the organism did not grow neither through fermentation nor anaerobic respiration. However, addition of pyruvate to the medium allowed its growth through fermentation and anaerobic respiration. The knowledge acquired in this work could be relevant both for the design of a production process as well as for the formulation of an effective commercial biocontrol product.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000300020	
Editor: 	Instituto de Tecnologia do Paraná - Tecpar	
Relação: 	10.1590/S1516-89132010000300020	
Formato: 	text/html	
Fonte: 	Brazilian Archives of Biology and Technology  v.53 n.3 2010	
Fonte: 	info:eu-repo/semantics/openAccess