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Pretreatment technologies for an efficient bioethanol production process based on enzymatic hydrolysis: A review
Abstract
Biofuel produced from lignocellulosic materials, so-called second generation bioethanol shows energetic, economic and environmental advantages in comparison to bioethanol from starch or sugar. However, physical and chemical barriers caused by the close association of the main components of lignocellulosic biomass, hinder the hydrolysis of cellulose and hemicellulose to fermentable sugars. The main goal of pretreatment is to increase the enzyme accessibility improving digestibility of cellulose. Each pretreatment has a specific effect on the cellulose, hemicellulose and lignin fraction thus, different pretreatment methods and conditions should be chosen according to the process configuration selected for the subsequent hydrolysis and fermentation steps. This paper reviews the most interesting technologies for ethanol production from lignocellulose and it points out several key properties that should be targeted for low-cost and advanced pretreatment processes.
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“Depending on the purpose of pretreatment, chemical, biological, thermochemical, or thermophysical methods are used, sometimes in combination [105, 106].”
From The promising future of microalgae: Current status, challenges, and optimization of a sustainable and renewable industry for biofuels, feed, and other products (2018) · cites this paper as [105]
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“Most pretreatment methods are based on either chemical or physical approaches (Alvira et al., 2010; Gírio et al., 2010).”
MethodPretreatments for the Efficient Extraction of Bioactive Compounds from Plant-Based Biomaterials
Zhao, S., Baik, O., Choi, Y. J., & Kim, S.-M. (2013) · Critical Reviews in Food Science and Nutrition · doi:10.1080/10408398.2011.632698 · Cited by 98
Li, W., Amos, B. K., Li, M., Pu, Y., DeBolt, S., Ragauskas, A. J., & Shi, J. (2018) · Biotechnology for Biofuels · doi:10.1186/s13068-018-1305-7 · Cited by 99
Biological pretreatment of lignocellulosic biomass—Current trends and future perspectives
Ummalyma, S. B., Supriya, R. D., Sindhu, R., Binod, P., Nair, R. B., Pandey, A., & Gnansounou, E. (2019) · Elsevier eBooks · doi:10.1016/b978-0-12-815162-4.00007-0 · Cited by 98
Emerging technologies for the pretreatment of lignocellulosic materials for bio-based products
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“4%, DWB) [46], making the separation of lignin and structural carbohydrates even harder.”
BackgroundRecent advances in pyrolysis of cellulose to value-added chemicals
Huang, X., Ren, J., Ran, J., Qin, C., Yang, Z., & Cao, J. (2022) · Fuel Processing Technology · doi:10.1016/j.fuproc.2022.107175 · Cited by 96
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“The removal of hemicellulose and lignin contributes to exposing the cellulose surface and increasing enzyme accessibility to the cellulose microfibrils (Alvira et al., 2010; Chen and Li, 2002).”
BackgroundXylan as limiting factor in enzymatic hydrolysis of nanocellulose
Penttilä, P. A., Várnai, A., Pere, J., Tammelin, T., Salmén, L., Siika‐aho, M., Viikari, L., & Serimaa, R. E. (2012) · Bioresource Technology · doi:10.1016/j.biortech.2012.11.017 · Cited by 98
“The removal of hemicellulose prior to hydrolysis also increases the pore volume of the substrate and the surface area accessible for the enzymes (Alvira et al., 2010; Zhu et al., 2008), which also improves the hydrolysis.”
BackgroundHuang, C.-F., Jiang, Y., Guo, G., & Hwang, W. (2010) · Bioresource Technology · doi:10.1016/j.biortech.2010.10.111 · Cited by 98
125th Anniversary Review: Fuel Alcohol: Current Production and Future Challenges
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Lignin Structural Alterations in Thermochemical Pretreatments with Limited Delignification
Pu, Y., Hu, F., Huang, F., & Ragauskas, A. J. (2015) · BioEnergy Research · doi:10.1007/s12155-015-9655-5 · Cited by 97
Adekunle, A., Orsat, V., & Raghavan, V. (2016) · Renewable and Sustainable Energy Reviews · doi:10.1016/j.rser.2016.06.064 · Cited by 99
Conversion of lignocellulosic agave residues into liquid biofuels using an AFEX™-based biorefinery
Flores-Gómez, C. A., Silva, E. M. E., Zhong, C., Dale, B. E., Sousa, L. D. C., & Balan, V. (2018) · Biotechnology for Biofuels · doi:10.1186/s13068-017-0995-6 · Cited by 95
García-Velásquez, C., & Álzate, C. A. C. (2019) · Energy · doi:10.1016/j.energy.2019.01.073 · Cited by 97
Taylor, M. J., Alabdrabalameer, H. A., & Skoulou, V. K. (2019) · Sustainability · doi:10.3390/su11133604 · Cited by 98
“The second variation is the use of low temperature (Ambient— 160 °C) with a high acid concentration [13,84,122,123].”
BackgroundInfluentialGreen technology in green macroalgal biorefineries
Zollmann, M., Robin, A., Prabhu, M. S., Polikovsky, M., Gillis, A., Greiserman, S., & Golberg, A. (2019) · Phycologia · doi:10.1080/00318884.2019.1640516 · Cited by 101
Pretreatment of lignocellulosic biomass for efficient enzymatic saccharification of cellulose
Zhang, J., Zhou, H., Liu, D., & Zhao, X. (2019) · Elsevier eBooks · doi:10.1016/b978-0-12-815936-1.00002-2 · Cited by 103
Jia, Y., Yang, C., Shen, B., Ling, Z., Huang, C., Li, X., Lai, C., & Yong, Q. (2020) · Bioresource Technology · doi:10.1016/j.biortech.2020.124225 · Cited by 97
Metadata
- Authors
- Alvira, P., Tomás-Pejó, E., Ballesteros, M., & Negro, M. J.
- Affiliations
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (ES)
- Corresponding author
- Negro, M.J.
- Venue
- Bioresource Technology
- Publisher
- Elsevier BV
- Published
- 2010-07
- Volume
- 101
- Issue
- 13
- Pages
- 4851-4861
- ISSN
- 0960-8524 (ISSN-L)
- OpenAlex
- W2053526929
- Cited by
- 3,912
- References
- 89
- Citations by year
- 2026: 102 · 2025: 135 · 2024: 141 · 2023: 162 · 2022: 227 · 2021: 273 · 2020: 274 · 2019: 319 · 2018: 309 · 2017: 369 · 2016: 317 · 2015: 332 · 2014: 293 · 2013: 265 · 2012: 207
- FWCI
- 78.48
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Locations
- Bioresource Technology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Engineering › Biomedical Engineering › Biofuel production and bioconversion
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Anaerobic Digestion and Biogas Production
- Physical Sciences › Chemical Engineering › Catalysis › Catalysis for Biomass Conversion
- Keywords
- lignocellulosic biomass, bioethanol production, pretreatment technologies, enzymatic hydrolysis, cellulose digestibility, hemicellulose, lignin, fermentable sugars, cellulosic ethanol
- MeSH terms
- Adsorption, Ethanol, Ammonia, Biotechnology, Cellulose, Conservation of Natural Resources, Energy-Generating Resources, Hydrolysis, Lignin, Oxygen, Porosity, Biomass
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