Data/hora: 25/06/2024 08:25:27

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