Structural features of dioxane lignin from Eucalyptus globulus and their relationship with the pulp yield of contrasting genotypes
The chemical structure of dioxane lignins isolated from two groups of Eucalyptus globulus genotypes with contrasting pulpwood characteristics were evaluated. Six genotypes were selected and separated in two groups (G1 and G2) based on differences in wood density, pulp yield and chemical characterist...
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| Format: | Article |
| Language: | English |
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Universidad del Bío-Bío
2015-08-01
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| Series: | Maderas: Ciencia y Tecnología |
| Subjects: | |
| Online Access: | https://revistas.ubiobio.cl/index.php/MCT/article/view/2100 |
| _version_ | 1797354835969835008 |
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| author | María Graciela Aguayo José Ruiz Marcela Norambuena Regis Teixeira Mendonça |
| author_facet | María Graciela Aguayo José Ruiz Marcela Norambuena Regis Teixeira Mendonça |
| author_sort | María Graciela Aguayo |
| collection | DOAJ |
| description | The chemical structure of dioxane lignins isolated from two groups of Eucalyptus globulus genotypes with contrasting pulpwood characteristics were evaluated. Six genotypes were selected and separated in two groups
(G1 and G2) based on differences in wood density, pulp yield and chemical characteristics. Lignin was isolated from both milled wood and kraft pulps produced at kappa number 16, and were characterized by different
techniques such as FTIR, elemental analysis, molar mass distribution and 31P NMR spectroscopy. From the different characteristics evaluated, some were determined as more relevant, such as syringyl (S) and guaiacyl
(G) amounts, S/G ratio and condensed biphenyl units, were correlated with the pulp yield. High correlations were found between pulp yield and syringyl units (R2 = 0,69), and pulp yield and syringyl/guaicyl ratio (R2 = 0,88). The condensed 5-5 biphenyl units presented a negative correlation with pulp yield (R2 = 0,76). The information obtained explained part of the difference in pulpability of the contrasting genotypes and can be used for the selection and improvement of the species for the pulp and paper industry. |
| first_indexed | 2024-03-08T13:55:35Z |
| format | Article |
| id | doaj.art-de8a42ca10cd44e8b4b94139cb20f7ff |
| institution | Directory Open Access Journal |
| issn | 0717-3644 0718-221X |
| language | English |
| last_indexed | 2024-03-08T13:55:35Z |
| publishDate | 2015-08-01 |
| publisher | Universidad del Bío-Bío |
| record_format | Article |
| series | Maderas: Ciencia y Tecnología |
| spelling | doaj.art-de8a42ca10cd44e8b4b94139cb20f7ff2024-01-15T17:45:47ZengUniversidad del Bío-BíoMaderas: Ciencia y Tecnología0717-36440718-221X2015-08-011731527Structural features of dioxane lignin from Eucalyptus globulus and their relationship with the pulp yield of contrasting genotypesMaría Graciela AguayoJosé RuizMarcela NorambuenaRegis Teixeira MendonçaThe chemical structure of dioxane lignins isolated from two groups of Eucalyptus globulus genotypes with contrasting pulpwood characteristics were evaluated. Six genotypes were selected and separated in two groups (G1 and G2) based on differences in wood density, pulp yield and chemical characteristics. Lignin was isolated from both milled wood and kraft pulps produced at kappa number 16, and were characterized by different techniques such as FTIR, elemental analysis, molar mass distribution and 31P NMR spectroscopy. From the different characteristics evaluated, some were determined as more relevant, such as syringyl (S) and guaiacyl (G) amounts, S/G ratio and condensed biphenyl units, were correlated with the pulp yield. High correlations were found between pulp yield and syringyl units (R2 = 0,69), and pulp yield and syringyl/guaicyl ratio (R2 = 0,88). The condensed 5-5 biphenyl units presented a negative correlation with pulp yield (R2 = 0,76). The information obtained explained part of the difference in pulpability of the contrasting genotypes and can be used for the selection and improvement of the species for the pulp and paper industry.https://revistas.ubiobio.cl/index.php/MCT/article/view/2100Dioxane ligninkraft pulpingEucalyptus globulusFTIR31P NMR spectroscopy. |
| spellingShingle | María Graciela Aguayo José Ruiz Marcela Norambuena Regis Teixeira Mendonça Structural features of dioxane lignin from Eucalyptus globulus and their relationship with the pulp yield of contrasting genotypes Maderas: Ciencia y Tecnología Dioxane lignin kraft pulping Eucalyptus globulus FTIR 31P NMR spectroscopy. |
| title | Structural features of dioxane lignin from Eucalyptus globulus and their relationship with the pulp yield of contrasting genotypes |
| title_full | Structural features of dioxane lignin from Eucalyptus globulus and their relationship with the pulp yield of contrasting genotypes |
| title_fullStr | Structural features of dioxane lignin from Eucalyptus globulus and their relationship with the pulp yield of contrasting genotypes |
| title_full_unstemmed | Structural features of dioxane lignin from Eucalyptus globulus and their relationship with the pulp yield of contrasting genotypes |
| title_short | Structural features of dioxane lignin from Eucalyptus globulus and their relationship with the pulp yield of contrasting genotypes |
| title_sort | structural features of dioxane lignin from eucalyptus globulus and their relationship with the pulp yield of contrasting genotypes |
| topic | Dioxane lignin kraft pulping Eucalyptus globulus FTIR 31P NMR spectroscopy. |
| url | https://revistas.ubiobio.cl/index.php/MCT/article/view/2100 |
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