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...
| Autores: | , , , , |
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| Tipo de recurso: | otro |
| Fecha de publicación: | 2014 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/98719 |
| Acceso en línea: | http://hdl.handle.net/10261/98719 |
| Access Level: | acceso abierto |
| Palabra clave: | Brewers’ spent grains Lignin 2D NMR |
| Sumario: | 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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