Structural characterization of the milled wood lignin isolated from brewer´s spent grain
Brewer´s spent grain (BSG) is the major by-product generated by the brewing industry. BSG is rich in carbohydrates, lignin, proteins and lipids, and has a high potential as source of food, energy and chemicals. In this work, the composition and structural characteristics of the lignin from BSG have been studied in detail by Py-GC/MS and 2D-NMR. The data demonstrated that this lignin is a p-hydroxyphenyl-guaiacyl-syringyl (H-GS) lignin, with a predominance of G units (S/G ratio of 0.4). 2D-NMR indicated that the main substructures present include β–O–4´ alkyl-aryl ethers followed by small amounts of phenylcoumarans and resinols.
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| Main Authors: | , , , , |
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| Format: | capítulo de libro biblioteca |
| Language: | English |
| Published: |
CSIC - Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS)
2014-06-24
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| Subjects: | Brewers’ spent grains, Lignin, 2D NMR, |
| Online Access: | http://hdl.handle.net/10261/98719 |
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