Evaluation of Portuguese and Spanish Quercus pyrenaica and Castanea sativa species used in cooperage as natural source of phenolic compounds
2013
Castro-Vázquez, Lucía | Alañón, M Elena | Ricardo-da-Silva, Jorge Manuel | Pérez-Coello, M Soledad | Laureano, Olga
A study on the phenolic composition of Portuguese and Spanish Castanea sativa and Quercus pyrenaica woods used in cooperage has been carried out with the aim of looking for an extra value for the wood residues generated in cooperage industries. Results showed that both species are an important source of valuable phenolic compounds, although differences in the phenolic content were found. Chestnut samples showed the highest concentration of total phenolic compounds, being especially rich in vescalagin, gallic acid, vanillic aldehyde and syringaldehyde. The geographical origin was another parameter to take into account. Portuguese chestnut samples showed higher amounts of phenolic compounds than the Spanish samples, with vescalagin, gallic acid, vanillic acid and syringaldehyde being the most important features. As a consequence, the residues generated in the cooperage industry from chestnut and Q. pyrenaica heartwood seem to be an important source of valuable phenolic compounds, particularly those from Portuguese chestnuts.
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