Data/hora: 16/06/2024 07:41:58

Provedor de dados: 	5	
País: 	France	
Título: 	Ultrasonic depolymerization of an exopolysaccharide produced by a bacterium isolated from a deep-sea hydrothermal vent polychaete annelid	
Autores: 	Petit, Anne-celine; Noiret, Nicolas; Guezennec, Jean; Gondrexon, N; Colliec-jouault, Sylvia.	
Data: 	2007-02	
Ano: 	2007	
Palavras-chave: 	Exopolysaccharide; Depolymerization; Ultrasound.	
Resumo: 	Low frequency ultrasound was used to depolymerize a high-molecular-weight exopolysaccharide (EPS) produced by a deep-sea hydrothermal bacterium Alteromonas macleodii subsp. fijiensis biovar deepsane. The influence of several parameters was examined including the duration of ultrasonic irradiation, EPS concentration. reaction temperature and volume of the sonicated solution. With the aim of optimizing the depolyrnerization, the native EPS was simultaneously treated with hydrogen peroxide and ultrasound. This study identified the sonication conditions that produce low-molecular-weight derivatives from the native EPS (&gt;10(6) Da) with good reproducibility. (C) 2006 Elsevier B.V. All rights reserved.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	http://archimer.ifremer.fr/doc/2007/publication-2123.pdf

DOI:10.1016/j.ultsonch.2006.03.010	
Editor: 	Elsevier	
Relação: 	http://archimer.ifremer.fr/doc/00000/2123/	
Formato: 	application/pdf	
Fonte: 	Ultrasonics Sonochemistry (1350-4177) (Elsevier), 2007-02 , Vol. 14 , N. 2 , P. 107-112	
Fonte: 	2006 Elsevier