Supercritical extraction as an effective first-step in a maize stover biorefinery

Supercritical carbon dioxide (scCO2) has been investigated for the generation of valuable waxy compounds and as an added-value technology in a holistic maize stover biorefinery. ScCO2 extraction and fractionation was carried out prior to hydrolysis and fermentation of maize stover. Fractionation of...

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Main Authors:	Attard, Thomas M., Theeuwes, Elke, Gomez, Leonardo D., Johansson, Emma, Dimitriou, Ioanna, Wright, Phillip C., Clark, James H., McQueen-Mason, Simon J., Hunt, Andrew J.
Format:	Article
Language:	English
Published:	Royal Society of Chemistry 2015
Online Access:	http://eprints.nottingham.ac.uk/50545/ http://eprints.nottingham.ac.uk/50545/ http://eprints.nottingham.ac.uk/50545/ http://eprints.nottingham.ac.uk/50545/1/Attard%202015.pdf

id	nottingham-50545
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spelling	nottingham-505452018-06-27T12:00:10Z http://eprints.nottingham.ac.uk/50545/ Supercritical extraction as an effective first-step in a maize stover biorefinery Attard, Thomas M. Theeuwes, Elke Gomez, Leonardo D. Johansson, Emma Dimitriou, Ioanna Wright, Phillip C. Clark, James H. McQueen-Mason, Simon J. Hunt, Andrew J. Supercritical carbon dioxide (scCO2) has been investigated for the generation of valuable waxy compounds and as an added-value technology in a holistic maize stover biorefinery. ScCO2 extraction and fractionation was carried out prior to hydrolysis and fermentation of maize stover. Fractionation of the crude extracts by scCO2 resulted in wax extracts having different compositions and melting temperatures, enabling their utilisation in different applications. One such fraction demonstrated significant potential as a renewable defoaming agent in washing machine detergent formulations. Furthermore, scCO2 extraction has been shown to have a positive effect on the downstream processing of the maize stover. Fermentation of the scCO2 extracted maize stover hydrolysates exhibited a higher glucose consumption and greater potential growth for surfactant (in comparison with non-scCO2 treated stover) and ethanol production (a 40% increase in overall ethanol production after scCO2 pre-treatment). This work represents an important development in the extraction of high value components from low value wastes and demonstrates the benefits of using scCO2 extraction as a first-step in biomass processing, including enhancing downstream processing of the biomass for the production of 2nd generation biofuels as part of an integrated holistic biorefinery. Royal Society of Chemistry 2015-05-07 Article PeerReviewed application/pdf en cc_by http://eprints.nottingham.ac.uk/50545/1/Attard%202015.pdf Attard, Thomas M. and Theeuwes, Elke and Gomez, Leonardo D. and Johansson, Emma and Dimitriou, Ioanna and Wright, Phillip C. and Clark, James H. and McQueen-Mason, Simon J. and Hunt, Andrew J. (2015) Supercritical extraction as an effective first-step in a maize stover biorefinery. RSC Advances, 5 (54). 43831 -43838. ISSN 2046-2069 http://pubs.rsc.org/en/content/articlelanding/2015/ra/c5ra07485a#!divAbstract doi: 10.1039/C5RA07485A doi: 10.1039/C5RA07485A
repository_type	Digital Repository
institution_category	Local University
institution	University of Nottingham Malaysia Campus
building	Nottingham Research Data Repository
collection	Online Access
language	English
description	Supercritical carbon dioxide (scCO2) has been investigated for the generation of valuable waxy compounds and as an added-value technology in a holistic maize stover biorefinery. ScCO2 extraction and fractionation was carried out prior to hydrolysis and fermentation of maize stover. Fractionation of the crude extracts by scCO2 resulted in wax extracts having different compositions and melting temperatures, enabling their utilisation in different applications. One such fraction demonstrated significant potential as a renewable defoaming agent in washing machine detergent formulations. Furthermore, scCO2 extraction has been shown to have a positive effect on the downstream processing of the maize stover. Fermentation of the scCO2 extracted maize stover hydrolysates exhibited a higher glucose consumption and greater potential growth for surfactant (in comparison with non-scCO2 treated stover) and ethanol production (a 40% increase in overall ethanol production after scCO2 pre-treatment). This work represents an important development in the extraction of high value components from low value wastes and demonstrates the benefits of using scCO2 extraction as a first-step in biomass processing, including enhancing downstream processing of the biomass for the production of 2nd generation biofuels as part of an integrated holistic biorefinery.
format	Article
author	Attard, Thomas M. Theeuwes, Elke Gomez, Leonardo D. Johansson, Emma Dimitriou, Ioanna Wright, Phillip C. Clark, James H. McQueen-Mason, Simon J. Hunt, Andrew J.
spellingShingle	Attard, Thomas M. Theeuwes, Elke Gomez, Leonardo D. Johansson, Emma Dimitriou, Ioanna Wright, Phillip C. Clark, James H. McQueen-Mason, Simon J. Hunt, Andrew J. Supercritical extraction as an effective first-step in a maize stover biorefinery
author_facet	Attard, Thomas M. Theeuwes, Elke Gomez, Leonardo D. Johansson, Emma Dimitriou, Ioanna Wright, Phillip C. Clark, James H. McQueen-Mason, Simon J. Hunt, Andrew J.
author_sort	Attard, Thomas M.
title	Supercritical extraction as an effective first-step in a maize stover biorefinery
title_short	Supercritical extraction as an effective first-step in a maize stover biorefinery
title_full	Supercritical extraction as an effective first-step in a maize stover biorefinery
title_fullStr	Supercritical extraction as an effective first-step in a maize stover biorefinery
title_full_unstemmed	Supercritical extraction as an effective first-step in a maize stover biorefinery
title_sort	supercritical extraction as an effective first-step in a maize stover biorefinery
publisher	Royal Society of Chemistry
publishDate	2015
url	http://eprints.nottingham.ac.uk/50545/ http://eprints.nottingham.ac.uk/50545/ http://eprints.nottingham.ac.uk/50545/ http://eprints.nottingham.ac.uk/50545/1/Attard%202015.pdf
first_indexed	2018-09-06T14:14:22Z
last_indexed	2018-09-06T14:14:22Z
_version_	1610867815826325504

Supercritical extraction as an effective first-step in a maize stover biorefinery

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