Data/hora: 08/06/2024 09:26:45

Provedor de dados: 	52	
País: 	Brazil	
Título: 	Evaluation of the types of starch for preparation of LDPE/starch blends	
Autores: 	Vinhas,Glória Maria; Lima,Suzana Moreira de; Santos,Lívia Almeida; Lima,Maria Alice Gomes de Andrade; Almeida,Yêda Medeiros Bastos de.	
Data: 	2007-05-01	
Ano: 	2007	
Palavras-chave: 	Amylolytic enzymes; Polyethylene; Starch; Blends; Talaromyces wortmanii; Phanerochaete crysosporium.	
Resumo: 	This study evaluated in relation the growth, and the amylolytic activity of mixed and isolated cultures of Phanerochaete chrysosporium and Talaromyces wortmanni on different types of starch. The thermal and mechanical properties in polyethylene/starch blends (proportion: 80/20 (w/w) before and after inoculation of the mixed cultures were evaluated. The regular starch Amidex 3 and the modified starch Fox5901 stood out in relation to the cellular growth and production of the amylase enzyme. In spite of the short time that the blends were exposed to the fungi, the microorganisms promoted physical and chemical changes in the structure of the blend, modifying its thermal and mechanical properties. The alteration of the degree of crystallinity and mechanical properties of the blends could be indications of the modification caused by the biodegradation process.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000300001	
Editor: 	Instituto de Tecnologia do Paraná - Tecpar	
Relação: 	10.1590/S1516-89132007000300001	
Formato: 	text/html	
Fonte: 	Brazilian Archives of Biology and Technology  v.50 n.3 2007	
Fonte: 	info:eu-repo/semantics/openAccess