Utilize este identificador para referenciar este registo:
http://hdl.handle.net/10773/5234
Título: | Miscanthus x giganteus Extractives: A Source of Valuable Phenolic Compounds and Sterols |
Autor: | Villaverde, J. J. Domingues, R. M. A. Freire, C. S. R. Silvestre, A. J. D. Neto, C. Pascoal Ligero, P. Vega, A. |
Palavras-chave: | Miscanthus x giganteus Bark Core Fatty acids Sterols Aromatic compounds GC-MS analysis |
Data: | 2009 |
Editora: | American Chemical Society |
Resumo: | The chemical composition of the lipophilic extracts of bark and core, of the Miscanthus x giganteus stalk, was studied by gas chromatography-mass spectrometry (GC-MS). Aromatic compounds, sterols, and fatty acids, followed by long-chain fatty alcohols, were the major families of components present in the M. x giganteus stalk. Aromatic compounds are more abundant in the M. x giganteus bark (521 mg/kg of bark), with vanillic acid, vanillin, and p-hydroxybenzaldehyde as the major compounds of this family. In the M. x giganteus core, sterols represent about 949 mg/kg of dry core with beta-sitosterol, 7-oxo-beta-sitosterol, stigmasterol, and campesterol as the major components. The detection of small amounts of esters in the GC-MS analysis with short columns explains the small increase in the abundance of the identified families after alkaline hydrolysis. The high content of valuable sterols and aromatic compounds in M. x giganteus and, particularly, in the core, which is considered a residue in most applications, can open new perspectives for the integrated upgrading of this grass within the biorefinery perspective. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/5234 |
DOI: | 10.1021/jf900071t |
ISSN: | 0021-8561 |
Aparece nas coleções: | DQ - Artigos |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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J. Agric. Food Chem., 2009, 57 (9), 3626-3631.pdf | 475.39 kB | Adobe PDF |
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