Hydrolysis of biomass using a reusable solid carbon acid catalyst and fermentation of the catalytic hydrolysate to ethanol

Bioresource Technology
Mandavi GoswamiB L A Prabhavathi Devi

Abstract

Solid acid catalysts can hydrolyze cellulose with lower reaction times and are easy to recover and reuse. A glycerol based carbon acid catalyst developed at CSIR-IICT performed well in acid catalysis reactions and hence this study was undertaken to evaluate the catalyst for hydrolysis of biomass (alkali pretreated or native rice straw). The catalyst could release 262 mg/g total reducing sugars (TRS) in 4h at 140 °C from alkali pretreated rice straw, and more importantly it released 147 mg/g TRS from native biomass. Reusability of the catalyst was also demonstrated. Catalytic hydrolysate was used as sugar source for fermentation to produce ethanol. Results indicate the solid acid catalyst as an interesting option for biomass hydrolysis.

References

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Jan 30, 2013·Biotechnology for Biofuels·Leif J JönssonNils-Olof Nilvebrant

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Citations

Mar 11, 2017·Brazilian Journal of Microbiology : [publication of the Brazilian Society for Microbiology]·Muhammad ArshadMazhar Abbas
Apr 25, 2020·The Science of the Total Environment·Chengfang SongYucheng Cao

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