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Título: | Analysis of chemical changes in Picea abies wood decayed by different Streptomyces strains showing evidence for biopulping procedures |
Autor: | Arias Fernández, Mª E.; Rodríguez Bullido, Juana; Pérez Leblic, Mª I.; Hernández Cutuli, M.; Polvillo, Oliva CSIC; González-Pérez, José Antonio CSIC ORCID ; González-Vila, Francisco Javier CSIC ORCID | Fecha de publicación: | 2010 | Editor: | Springer Nature | Citación: | Wood Science and Technology: 44(2): 179-188 (2010) | Resumen: | The present study is focused on analysing the suitability of different Streptomyces strains for biomechanical pulping purposes using spruce wood (Picea abies) as substrate. After 2 weeks of incubation, no apparent variations in lignin Klason content of treated woods were detected compared with the control. However, the increase in acid-soluble lignin fraction pointed out chemical alterations in lignin moiety. Through Py-GC/MS analysis enrichment in cellulose and lignin molecule modifications were detected in treated woods. The increase in the relative abundance of the most G-type phenol units with a higher oxidation degree suggests that some oxidation occurred in the lignin C3-alkyl chain. In addition, the decrease in the phenylmethane? phenylethane/phenylpropane(phC1? phC2/phC3) ratio would indicate the ability of Streptomyces strains to breakdown the C3-alkyl chain linkages once carbons had been oxidized. From this study it could be concluded that the assayed strains are able to produce a delignification of spruce wood which may improve mechanical pulping processes. | Descripción: | 10 pages, 1 figure, 2 tables, 24 references. | Versión del editor: | http://dx.doi.org/10.1007/s00226-009-0282-1 | URI: | http://hdl.handle.net/10261/56067 | DOI: | 10.1007/s00226-009-0282-1 | ISSN: | 0043-7719 | E-ISSN: | 1432-5225 |
Aparece en las colecciones: | (IRNAS) Artículos |
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