Effect of Modified Cooking on Chemical Composition of Pulps from Eucalyptus globulus and Eucalyptus nitens
The effects of SuperBatch™ (SB), CompactCooking™ (CC), and Lo-Solids™ (LS) modified cooking processes on pulp properties of Eucalyptus globulus and Eucalyptus nitens were investigated. The syringyl/guayacil (S/G) lignin ratio in the wood of E. globulus was significantly higher (4.7) than that of E....
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| Format: | Article |
| Language: | English |
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North Carolina State University
2014-11-01
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| Series: | BioResources |
| Subjects: | |
| Online Access: | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_1_210_Modified_Cooking_Chemical_Composition |
| _version_ | 1828496921277235200 |
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| author | Rudine Antes Olli Pekka Joutsimo |
| author_facet | Rudine Antes Olli Pekka Joutsimo |
| author_sort | Rudine Antes |
| collection | DOAJ |
| description | The effects of SuperBatch™ (SB), CompactCooking™ (CC), and Lo-Solids™ (LS) modified cooking processes on pulp properties of Eucalyptus globulus and Eucalyptus nitens were investigated. The syringyl/guayacil (S/G) lignin ratio in the wood of E. globulus was significantly higher (4.7) than that of E. nitens (3.5). From the brown stock pulps, the viscosity, total lignin, carbohydrate composition, acetone extractives, and hexenuronic acids were measured. For the same Kappa number level (17 ± 0.5), pulps from E. globulus needed lower H-factor. They also presented a higher brightness and more cooking rejects, independent of the cooking method. CC presented a slightly higher cooking yield and pulp viscosity compared to the other modified cooking methods. At the same Kappa number level, the pulps of E. nitens presented a greater amount of total lignin, whereas E. globulus presented a higher amount of hexenuronic acid content, independent of the cooking method. |
| first_indexed | 2024-12-11T12:38:26Z |
| format | Article |
| id | doaj.art-a849130ff3d94c6dab3bcc69cdec6616 |
| institution | Directory Open Access Journal |
| issn | 1930-2126 1930-2126 |
| language | English |
| last_indexed | 2024-12-11T12:38:26Z |
| publishDate | 2014-11-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj.art-a849130ff3d94c6dab3bcc69cdec66162022-12-22T01:07:03ZengNorth Carolina State UniversityBioResources1930-21261930-21262014-11-0110121022610.15376/biores.10.1.210-226Effect of Modified Cooking on Chemical Composition of Pulps from Eucalyptus globulus and Eucalyptus nitensRudine Antes0Olli Pekka Joutsimo1 Aalto University; ChileFinlandThe effects of SuperBatch™ (SB), CompactCooking™ (CC), and Lo-Solids™ (LS) modified cooking processes on pulp properties of Eucalyptus globulus and Eucalyptus nitens were investigated. The syringyl/guayacil (S/G) lignin ratio in the wood of E. globulus was significantly higher (4.7) than that of E. nitens (3.5). From the brown stock pulps, the viscosity, total lignin, carbohydrate composition, acetone extractives, and hexenuronic acids were measured. For the same Kappa number level (17 ± 0.5), pulps from E. globulus needed lower H-factor. They also presented a higher brightness and more cooking rejects, independent of the cooking method. CC presented a slightly higher cooking yield and pulp viscosity compared to the other modified cooking methods. At the same Kappa number level, the pulps of E. nitens presented a greater amount of total lignin, whereas E. globulus presented a higher amount of hexenuronic acid content, independent of the cooking method.http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_1_210_Modified_Cooking_Chemical_CompositionModified cookingPulpingHardwoodEucalyptusChemical compositionHemicellulosesKraft cookingSyringyl/guayacil (S/G) lignin ratio |
| spellingShingle | Rudine Antes Olli Pekka Joutsimo Effect of Modified Cooking on Chemical Composition of Pulps from Eucalyptus globulus and Eucalyptus nitens BioResources Modified cooking Pulping Hardwood Eucalyptus Chemical composition Hemicelluloses Kraft cooking Syringyl/guayacil (S/G) lignin ratio |
| title | Effect of Modified Cooking on Chemical Composition of Pulps from Eucalyptus globulus and Eucalyptus nitens |
| title_full | Effect of Modified Cooking on Chemical Composition of Pulps from Eucalyptus globulus and Eucalyptus nitens |
| title_fullStr | Effect of Modified Cooking on Chemical Composition of Pulps from Eucalyptus globulus and Eucalyptus nitens |
| title_full_unstemmed | Effect of Modified Cooking on Chemical Composition of Pulps from Eucalyptus globulus and Eucalyptus nitens |
| title_short | Effect of Modified Cooking on Chemical Composition of Pulps from Eucalyptus globulus and Eucalyptus nitens |
| title_sort | effect of modified cooking on chemical composition of pulps from eucalyptus globulus and eucalyptus nitens |
| topic | Modified cooking Pulping Hardwood Eucalyptus Chemical composition Hemicelluloses Kraft cooking Syringyl/guayacil (S/G) lignin ratio |
| url | http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_1_210_Modified_Cooking_Chemical_Composition |
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