Effect of steam explosion and enzymatic pre-treatments on pulping and bleaching of Hesperaloe funifera
A non-wood raw material with high potential for pulp and paper applications (Hesperaloe funifera) was subjected to a steam explosion pre-treatment, and the subsequent effect of this pretreatment on biopulping and biobleaching was studied. An increase in the delignification rate, bigger than that reported for autohydrolysis and acid hydrolysis pre-treatments, and a reduction in chemical consumption were found during kraft pulping of the exploded samples. However, biopulping with the laccase-mediator system (LMS) did not lead to a reduction in the kappa number in either non-exploded or exploded unbleached pulps. On the other hand, the steam explosion pretreatment boosted the advantages of the LMS pre-treatment (decrease in kappa number and increase in brightness) favored biobleaching, with a 53.1% delignification rate and a final brightness of 67% ISO. Finally, the steam explosion pre-treatment also improved the color properties of the bleached pulp and reduced the hydrogen peroxide consumption by 24.6%. © 2012 Elsevier Ltd.
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Format: | artículo biblioteca |
Language: | English |
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Elsevier
2012
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Subjects: | Hesperaloe funifera, Biopulping, Biobleaching, Steam explosion, Laccase, |
Online Access: | http://hdl.handle.net/20.500.12792/2805 http://hdl.handle.net/10261/291245 |
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dig-inia-es-10261-2912452023-02-20T07:16:10Z Effect of steam explosion and enzymatic pre-treatments on pulping and bleaching of Hesperaloe funifera Martín-Sampedro, R. Eugenio Martín, María Eugenia Villar, J. C. Hesperaloe funifera Biopulping Biobleaching Steam explosion Laccase A non-wood raw material with high potential for pulp and paper applications (Hesperaloe funifera) was subjected to a steam explosion pre-treatment, and the subsequent effect of this pretreatment on biopulping and biobleaching was studied. An increase in the delignification rate, bigger than that reported for autohydrolysis and acid hydrolysis pre-treatments, and a reduction in chemical consumption were found during kraft pulping of the exploded samples. However, biopulping with the laccase-mediator system (LMS) did not lead to a reduction in the kappa number in either non-exploded or exploded unbleached pulps. On the other hand, the steam explosion pretreatment boosted the advantages of the LMS pre-treatment (decrease in kappa number and increase in brightness) favored biobleaching, with a 53.1% delignification rate and a final brightness of 67% ISO. Finally, the steam explosion pre-treatment also improved the color properties of the bleached pulp and reduced the hydrogen peroxide consumption by 24.6%. © 2012 Elsevier Ltd. 2023-02-20T07:16:10Z 2023-02-20T07:16:10Z 2012 artículo Bioresource Technology 111: 460-467 (2012) 0960-8524 http://hdl.handle.net/20.500.12792/2805 http://hdl.handle.net/10261/291245 10.1016/j.biortech.2012.02.024 en none Elsevier |
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Hesperaloe funifera Biopulping Biobleaching Steam explosion Laccase Hesperaloe funifera Biopulping Biobleaching Steam explosion Laccase |
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Hesperaloe funifera Biopulping Biobleaching Steam explosion Laccase Hesperaloe funifera Biopulping Biobleaching Steam explosion Laccase Martín-Sampedro, R. Eugenio Martín, María Eugenia Villar, J. C. Effect of steam explosion and enzymatic pre-treatments on pulping and bleaching of Hesperaloe funifera |
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A non-wood raw material with high potential for pulp and paper applications (Hesperaloe funifera) was subjected to a steam explosion pre-treatment, and the subsequent effect of this pretreatment on biopulping and biobleaching was studied. An increase in the delignification rate, bigger than that reported for autohydrolysis and acid hydrolysis pre-treatments, and a reduction in chemical consumption were found during kraft pulping of the exploded samples. However, biopulping with the laccase-mediator system (LMS) did not lead to a reduction in the kappa number in either non-exploded or exploded unbleached pulps. On the other hand, the steam explosion pretreatment boosted the advantages of the LMS pre-treatment (decrease in kappa number and increase in brightness) favored biobleaching, with a 53.1% delignification rate and a final brightness of 67% ISO. Finally, the steam explosion pre-treatment also improved the color properties of the bleached pulp and reduced the hydrogen peroxide consumption by 24.6%. © 2012 Elsevier Ltd. |
format |
artículo |
topic_facet |
Hesperaloe funifera Biopulping Biobleaching Steam explosion Laccase |
author |
Martín-Sampedro, R. Eugenio Martín, María Eugenia Villar, J. C. |
author_facet |
Martín-Sampedro, R. Eugenio Martín, María Eugenia Villar, J. C. |
author_sort |
Martín-Sampedro, R. |
title |
Effect of steam explosion and enzymatic pre-treatments on pulping and bleaching of Hesperaloe funifera |
title_short |
Effect of steam explosion and enzymatic pre-treatments on pulping and bleaching of Hesperaloe funifera |
title_full |
Effect of steam explosion and enzymatic pre-treatments on pulping and bleaching of Hesperaloe funifera |
title_fullStr |
Effect of steam explosion and enzymatic pre-treatments on pulping and bleaching of Hesperaloe funifera |
title_full_unstemmed |
Effect of steam explosion and enzymatic pre-treatments on pulping and bleaching of Hesperaloe funifera |
title_sort |
effect of steam explosion and enzymatic pre-treatments on pulping and bleaching of hesperaloe funifera |
publisher |
Elsevier |
publishDate |
2012 |
url |
http://hdl.handle.net/20.500.12792/2805 http://hdl.handle.net/10261/291245 |
work_keys_str_mv |
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_version_ |
1767603191309926400 |