Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/67142
Type: Artigo de Periódico
Title: Characterization of Lignin before and after Exposure to the Gastrointestinal Tract of Ruminants
Authors: 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
Abstract: 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.
Subject: Lignina
Ruminante
Eucalyptus Grandis
language: eng
metadata.dc.publisher.country: Brasil
Publisher: Universidade Federal de Minas Gerais
Publisher Initials: UFMG
metadata.dc.publisher.department: VET - DEPARTAMENTO DE ZOOTECNIA
Rights: Acesso Aberto
metadata.dc.identifier.doi: 10.4236/ajac.2016.711067
URI: http://hdl.handle.net/1843/67142
Issue Date: 27-Oct-2016
metadata.dc.url.externa: https://www.scirp.org/journal/paperinformation?paperid=71528
metadata.dc.relation.ispartof: American Journal of Analytical Chemistry
Appears in Collections:Artigo de Periódico



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