Effects of temperature on steam explosion pretreatment of poplar hybrids with different lignin contents in bioethanol production

Jessica San Martín-Davison; Mercedes Ballesteros; Paloma Manzanares; Ximena Petit Breuilh Sepúlveda; Alberto Vergara-Fernández

doi:10.1080/15435075.2014.887569

Effects of temperature on steam explosion pretreatment of poplar hybrids with different lignin contents in bioethanol production

Jessica San Martín-Davison^*, Mercedes Ballesteros, Paloma Manzanares, Ximena Petit Breuilh Sepúlveda, Alberto Vergara-Fernández

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

The aim of this study is to evaluate the effect of the lignin content in four hybrid poplars for enhancing ethanol production. The study was conducted using steam explosion at 200 and 220°C for 5 min as a pre-treatment and then a simultaneous saccharification and fermentation (SSF) process with Saccharomyces cerevisiae. The composition of raw material, liquid, and solid fraction obtained after pretreatment, enzymatic digestion, and ethanol production under the different experimental conditions was analyzed. The best results for bioethanol production were obtained from steam explosion pre-treatment carried out at 220°C with the hybrid poplar H-29, with cellulose recovery of over 63%, enzymatic hydrolysis yield of approximately 67%, and SSF yield of 70% of the theoretical value. However, the highest enzymatic hydrolysis yield (79%) was obtained for the hybrid poplar H-34, which has the lowest lignin content.

Original language	English
Pages (from-to)	832-842
Number of pages	11
Journal	International Journal of Green Energy
Volume	12
Issue number	8
DOIs	https://doi.org/10.1080/15435075.2014.887569
State	Published - 3 Aug 2015

Bibliographical note

Funding Information:
This research was supported by CONICYT (FONDEF Project D07I1078) and CONICYT-CNE Energy Program/Internships Abroad.

Publisher Copyright:
© Taylor & Francis Group, LLC.

Keywords

Bioethanol
Hybrid Poplar
Lignin
Lignocellulosic biomass
Steam explosion

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1080/15435075.2014.887569

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abstract = "The aim of this study is to evaluate the effect of the lignin content in four hybrid poplars for enhancing ethanol production. The study was conducted using steam explosion at 200 and 220°C for 5 min as a pre-treatment and then a simultaneous saccharification and fermentation (SSF) process with Saccharomyces cerevisiae. The composition of raw material, liquid, and solid fraction obtained after pretreatment, enzymatic digestion, and ethanol production under the different experimental conditions was analyzed. The best results for bioethanol production were obtained from steam explosion pre-treatment carried out at 220°C with the hybrid poplar H-29, with cellulose recovery of over 63%, enzymatic hydrolysis yield of approximately 67%, and SSF yield of 70% of the theoretical value. However, the highest enzymatic hydrolysis yield (79%) was obtained for the hybrid poplar H-34, which has the lowest lignin content.",

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note = "Funding Information: This research was supported by CONICYT (FONDEF Project D07I1078) and CONICYT-CNE Energy Program/Internships Abroad. Publisher Copyright: {\textcopyright} Taylor & Francis Group, LLC.",

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AU - Martín-Davison, Jessica San

AU - Ballesteros, Mercedes

AU - Manzanares, Paloma

AU - Sepúlveda, Ximena Petit Breuilh

AU - Vergara-Fernández, Alberto

N1 - Funding Information: This research was supported by CONICYT (FONDEF Project D07I1078) and CONICYT-CNE Energy Program/Internships Abroad. Publisher Copyright: © Taylor & Francis Group, LLC.

PY - 2015/8/3

Y1 - 2015/8/3

N2 - The aim of this study is to evaluate the effect of the lignin content in four hybrid poplars for enhancing ethanol production. The study was conducted using steam explosion at 200 and 220°C for 5 min as a pre-treatment and then a simultaneous saccharification and fermentation (SSF) process with Saccharomyces cerevisiae. The composition of raw material, liquid, and solid fraction obtained after pretreatment, enzymatic digestion, and ethanol production under the different experimental conditions was analyzed. The best results for bioethanol production were obtained from steam explosion pre-treatment carried out at 220°C with the hybrid poplar H-29, with cellulose recovery of over 63%, enzymatic hydrolysis yield of approximately 67%, and SSF yield of 70% of the theoretical value. However, the highest enzymatic hydrolysis yield (79%) was obtained for the hybrid poplar H-34, which has the lowest lignin content.

AB - The aim of this study is to evaluate the effect of the lignin content in four hybrid poplars for enhancing ethanol production. The study was conducted using steam explosion at 200 and 220°C for 5 min as a pre-treatment and then a simultaneous saccharification and fermentation (SSF) process with Saccharomyces cerevisiae. The composition of raw material, liquid, and solid fraction obtained after pretreatment, enzymatic digestion, and ethanol production under the different experimental conditions was analyzed. The best results for bioethanol production were obtained from steam explosion pre-treatment carried out at 220°C with the hybrid poplar H-29, with cellulose recovery of over 63%, enzymatic hydrolysis yield of approximately 67%, and SSF yield of 70% of the theoretical value. However, the highest enzymatic hydrolysis yield (79%) was obtained for the hybrid poplar H-34, which has the lowest lignin content.

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KW - Hybrid Poplar

KW - Lignin

KW - Lignocellulosic biomass

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JO - International Journal of Green Energy

JF - International Journal of Green Energy

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ER -

Effects of temperature on steam explosion pretreatment of poplar hybrids with different lignin contents in bioethanol production

Abstract

Bibliographical note

Keywords

UN SDGs

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