Enhancement of enzymatic saccharification of Eucalyptus globulus Steam explosion versus steam treatment
Steam explosion and steam pre-treatment have proved capable of enhancing enzymatic saccharification of lignocellulosic materials. However, until now, these methods had not been compared under the same operational conditions and using the same raw material. Both pre-treatments lead to increased yields in the saccharification of Eucalyptus globulus; but results have been better with steam pre-treatments, despite the more accessible surface of exploded samples. The reason for this finding could be enzymatic inhibition steam explosion causes a more extensive extraction of hemicelluloses and releases a greater amount of degradation products which can inhibit enzymatic action. Enzymatic inhibition is also dependent on the amount and chemical structure of lignin, which was also a contributing factor to the lower enzymatic yields obtained with the most severe pre-treatment. Thus, the highest yields (46.7% glucose and 73.4% xylose yields) were obtained after two cycle of steam treatment, of 5 and 3. min, at 183. °C. © 2014 Elsevier Ltd.
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Elsevier
2014
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Subjects: | Autohydrolysis, Steam explosion, Enzymatic saccharification, Eucalyptus globulus, |
Online Access: | http://hdl.handle.net/20.500.12792/2813 http://hdl.handle.net/10261/292026 |
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dig-inia-es-10261-2920262023-02-20T07:24:48Z Enhancement of enzymatic saccharification of Eucalyptus globulus Steam explosion versus steam treatment Martin-Sampedro, R. Revilla, E. Villar, J. C. Eugenio Martín, María Eugenia Autohydrolysis Steam explosion Enzymatic saccharification Eucalyptus globulus Steam explosion and steam pre-treatment have proved capable of enhancing enzymatic saccharification of lignocellulosic materials. However, until now, these methods had not been compared under the same operational conditions and using the same raw material. Both pre-treatments lead to increased yields in the saccharification of Eucalyptus globulus; but results have been better with steam pre-treatments, despite the more accessible surface of exploded samples. The reason for this finding could be enzymatic inhibition steam explosion causes a more extensive extraction of hemicelluloses and releases a greater amount of degradation products which can inhibit enzymatic action. Enzymatic inhibition is also dependent on the amount and chemical structure of lignin, which was also a contributing factor to the lower enzymatic yields obtained with the most severe pre-treatment. Thus, the highest yields (46.7% glucose and 73.4% xylose yields) were obtained after two cycle of steam treatment, of 5 and 3. min, at 183. °C. © 2014 Elsevier Ltd. 2023-02-20T07:24:48Z 2023-02-20T07:24:48Z 2014 artículo Bioresource Technology 167: 186-191 (2014) 0960-8524 http://hdl.handle.net/20.500.12792/2813 http://hdl.handle.net/10261/292026 10.1016/j.biortech.2014.06.027 en none Elsevier |
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Autohydrolysis Steam explosion Enzymatic saccharification Eucalyptus globulus Autohydrolysis Steam explosion Enzymatic saccharification Eucalyptus globulus |
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Autohydrolysis Steam explosion Enzymatic saccharification Eucalyptus globulus Autohydrolysis Steam explosion Enzymatic saccharification Eucalyptus globulus Martin-Sampedro, R. Revilla, E. Villar, J. C. Eugenio Martín, María Eugenia Enhancement of enzymatic saccharification of Eucalyptus globulus Steam explosion versus steam treatment |
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Steam explosion and steam pre-treatment have proved capable of enhancing enzymatic saccharification of lignocellulosic materials. However, until now, these methods had not been compared under the same operational conditions and using the same raw material. Both pre-treatments lead to increased yields in the saccharification of Eucalyptus globulus; but results have been better with steam pre-treatments, despite the more accessible surface of exploded samples. The reason for this finding could be enzymatic inhibition steam explosion causes a more extensive extraction of hemicelluloses and releases a greater amount of degradation products which can inhibit enzymatic action. Enzymatic inhibition is also dependent on the amount and chemical structure of lignin, which was also a contributing factor to the lower enzymatic yields obtained with the most severe pre-treatment. Thus, the highest yields (46.7% glucose and 73.4% xylose yields) were obtained after two cycle of steam treatment, of 5 and 3. min, at 183. °C. © 2014 Elsevier Ltd. |
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artículo |
topic_facet |
Autohydrolysis Steam explosion Enzymatic saccharification Eucalyptus globulus |
author |
Martin-Sampedro, R. Revilla, E. Villar, J. C. Eugenio Martín, María Eugenia |
author_facet |
Martin-Sampedro, R. Revilla, E. Villar, J. C. Eugenio Martín, María Eugenia |
author_sort |
Martin-Sampedro, R. |
title |
Enhancement of enzymatic saccharification of Eucalyptus globulus Steam explosion versus steam treatment |
title_short |
Enhancement of enzymatic saccharification of Eucalyptus globulus Steam explosion versus steam treatment |
title_full |
Enhancement of enzymatic saccharification of Eucalyptus globulus Steam explosion versus steam treatment |
title_fullStr |
Enhancement of enzymatic saccharification of Eucalyptus globulus Steam explosion versus steam treatment |
title_full_unstemmed |
Enhancement of enzymatic saccharification of Eucalyptus globulus Steam explosion versus steam treatment |
title_sort |
enhancement of enzymatic saccharification of eucalyptus globulus steam explosion versus steam treatment |
publisher |
Elsevier |
publishDate |
2014 |
url |
http://hdl.handle.net/20.500.12792/2813 http://hdl.handle.net/10261/292026 |
work_keys_str_mv |
AT martinsampedror enhancementofenzymaticsaccharificationofeucalyptusglobulussteamexplosionversussteamtreatment AT revillae enhancementofenzymaticsaccharificationofeucalyptusglobulussteamexplosionversussteamtreatment AT villarjc enhancementofenzymaticsaccharificationofeucalyptusglobulussteamexplosionversussteamtreatment AT eugeniomartinmariaeugenia enhancementofenzymaticsaccharificationofeucalyptusglobulussteamexplosionversussteamtreatment |
_version_ |
1767603288340955136 |