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Updates on the pretreatment of lignocellulosic feedstocks for bioenergy production–a review
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Date
2017-06-06
Authors
Rajendran, Karthik
Drielak, Edward
Sudarshan Varma, V.
Muthusamy, Shanmugaprakash
Kumar, Gopalakrishnan
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Journal ISSN
Volume Title
Publisher
Springer
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Abstract
Lignocellulosic biomass is the most abundant renewable energy bioresources available today. Due to its recalcitrant structure, lignocellulosic feedstocks cannot be directly converted into fermentable sugars. Thus, an additional step known as the pretreatment is needed for efficient enzyme hydrolysis for the release of sugars. Various pretreatment technologies have been developed and examined for different biomass feedstocks. One of the major concerns of pretreatments is the degradation of sugars and formation of inhibitors during pretreatment. The inhibitor formation affects in the following steps after pretreatments such as enzymatic hydrolysis and fermentation for the release of different bioenergy products. The sugar degradation and formation of inhibitors depend on the types and conditions of pretreatment and types of biomass. This review covers the structure of lignocellulose, followed by the factors affecting pretreatment and challenges of pretreatment. This review further discusses diverse types of pretreatment technologies and different applications of pretreatment for producing biogas, biohydrogen, ethanol, and butanol.
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Keywords
Lignocellulosic biomass , Pretreatment , Biogas , Ethanol , Butanol , Inhibitors
Citation
Rajendran, K., Drielak, E., Sudarshan Varma, V., Muthusamy, S. and Kumar, G. (2017) 'Updates on the pretreatment of lignocellulosic feedstocks for bioenergy production–a review', Biomass Conversion and Biorefinery. In Press, doi: 10.1007/s13399-017-0269-3
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© Springer-Verlag Berlin Heidelberg 2017. The final publication is available at Springer via http://dx.doi.org/10.1007/s13399-017-0269-3