Data/hora: 23/09/2024 13:38:22

Biblioteca(s): 	Embrapa Agroindústria de Alimentos.	
Data corrente: 	10/10/2011	
Data da última atualização: 	30/11/2012	
Autoria: 	MELLINGER-SILVA, C.; SIMAS-TOSIN, F. F.; SCHIAVINI, D. N.; WERNER, M. F.; BAGGIO, C. H.; PEREIRA, I. T.; SILVA, L. M. da; GORIN, P. A. J.; IACOMINI, M.	
Afiliação: 	CAROLINE MELLINGER SILVA, CTAA; FERNANDA F. SIMAS-TOSIN, UFPR; DANIELE N. SCHIAVINI, FACULDADES PEQUENO PRÍNCIPE-PR; MARIA FERNANDA WERNER, UFPR; CRISTIANE H. BAGGIO, UFPR; ISABELA T. PEREIRA, UFPR; LUISA M. DA SILVA, UFPR; PHILIP A. J. GORIN, UFPR; MARCELO IACOMINI, UFPR.	
Título: 	Isolation of a gastroprotective arabinoxylan from sugarcane bagasse.	
Ano de publicação: 	2011	
Fonte/Imprenta: 	Bioresource Technology, v. 102, n. 22, p. 10524-10528, Nov. 2011.	
DOI: 	10.1016/j.biortech.2011.08.107	
Idioma: 	Inglês	
Conteúdo: 	After industrial processing, one-third of sugarcane culms is converted into residual bagasse. The xylanrich hemicellulose components of the bagasse were extracted with hot aqueous alkali (AX-CRUDE). Approximately 82% of the extracted hemicelluloses was precipitated with ethanol (AX-PET). Both AXCRUDE and AX-PET contained an arabinoxylan as confirmed by 13C NMR and methylation analysis. Fraction AX-PET was fed to female Wistar rats with ethanol-induced gastric lesions. Oral administrations of 30, 100, and 300 mg/kg reduced the gastric lesion area by over 50%, and replenished ethanol-induced depletion of glutathione. The polysaccharide also increased mucus production by over 70%, indicating its cytoprotective action on experimentally induced gastric ulcers. These findings are significant, since a biologically active compound can be extracted in high yields from an abundant, readily available residue.	
Palavras-Chave: 	Cana-de-açúcar.	
Thesagro: 	Bagaço; Polissacarídeo.	
Thesaurus Nal: 	Arabinoxylan.	
Categoria do assunto: 	X Pesquisa, Tecnologia e Engenharia	
Registro original: 	Embrapa Agroindústria de Alimentos (CTAA)	
Exemplares: 	CTAA - (11015-1) - UPC - AP - PP - 2011/053 -  - 2011.00355 - DIS