Use este identificador para citar ou linkar para este item: http://hdl.handle.net/1843/67142
Tipo: Artigo de Periódico
Título: Characterization of Lignin before and after Exposure to the Gastrointestinal Tract of Ruminants
Autor(es): Eloísa de Oliveira Simóes Saliba
Dorila Piló Veloso
E. A. Capanema
Jaqueline Simões Saliba
Ana Luiza da Costa Cruz Borges
Lúcio Carlos Gonçalves
Iran Borges
Diogo Gonzaga Jayme
Ricardo Reis Silva
Resumo: The aim of this study was to investigate the structural composition of lignin (LIPE®) extracted from Eucalyptus grandis, before and after exposure to the gastrointestinal tract of ruminants. For this study lignin was isolated, purified and characterized using 1H and 13C Nuclear Magnetic Resonance Spectroscopy, nitrobenzene oxidation, functional groups analysis and gas chromatography with mass spectroscopy. To have a better understanding of lignin morphology and of its ultra structure, electron microscopy in wood cell wall was utilized. The lignin fecal samples showed similar 1H NMR spectrums and nitrobenzene oxidation products compared with LIPE®. The result of the microanalysis of LIPE® was similar to data shown in the literature. The ultra structure of lignin was similar to that of Bamboo (hard wood). The lignin isolated from feces of sheep was identical to the original LIPE®, which means that this product can be used as an external marker in protein digestibility in sheep.
Assunto: Lignina
Ruminante
Eucalyptus Grandis
Idioma: eng
País: Brasil
Editor: Universidade Federal de Minas Gerais
Sigla da Instituição: UFMG
Departamento: VET - DEPARTAMENTO DE ZOOTECNIA
Tipo de Acesso: Acesso Aberto
Identificador DOI: 10.4236/ajac.2016.711067
URI: http://hdl.handle.net/1843/67142
Data do documento: 27-Out-2016
metadata.dc.url.externa: https://www.scirp.org/journal/paperinformation?paperid=71528
metadata.dc.relation.ispartof: American Journal of Analytical Chemistry
Aparece nas coleções:Artigo de Periódico

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