Supercritical CO2 extraction as an effective pretreatment step for wax extraction in a miscanthus biorefinery

Thomas M. Attard, C.R. McElroy, Richard J. Gammons, John M. Slattery, Nontipa Supanchaiyamat, Claire Lessa Alvim Kamei, Oene Dolstra, Luisa M. Trindade, Neil C. Bruce, Simon J. McQueen-Mason, Seishi Shimizu, Andrew J. Hunt*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

14 Citations (Scopus)

Abstract

The use of supercritical carbon dioxide (scCO2) to extract valuable lipophilic compounds from miscanthus was investigated and subsequent enzymatic saccharification was carried out to determine the impact of scCO2 extraction on downstream processing of miscanthus. Two miscanthus genotypes (Miscanthus x. giganteus and Miscanthus sinensis) were investigated and characterized. A diverse range of molecules were detected including long-chain hydrocarbons, fatty acids, n-policosanols, aldehydes, wax esters, sterols and steroid ketones. Quantification data indicates that there is a considerable difference among each species in the quantities of specific compounds. The waxes also exhibited significant differences in melting temperature, thus illustrating the opportunity for utilization in various applications. In addition to the isolation of valuable chemical compounds, the scCO2 pretreatment also had a beneficial effect on the downstream processing of the biomass. The total sugars released after saccharification was found to increase by around 20% when coupled with scCO2 extraction, as compared to untreated samples.

Original languageEnglish
Pages (from-to)5979-5988
JournalACS sustainable chemistry & engineering
Volume4
Issue number11
DOIs
Publication statusPublished - 7 Aug 2016

Fingerprint

Saccharification
policosanol
Waxes
wax
Chemical compounds
chemical compound
sterol
Sterols
ketone
steroid
aldehyde
Processing
Hydrocarbons
Ketones
Aldehydes
Fatty acids
Carbon Dioxide
Sugars
ester
Melting point

Keywords

  • Carbon dioxide
  • Extraction
  • Miscanthus
  • Saccharification
  • Supercritical
  • Waxes

Cite this

Attard, T. M., McElroy, C. R., Gammons, R. J., Slattery, J. M., Supanchaiyamat, N., Kamei, C. L. A., ... Hunt, A. J. (2016). Supercritical CO2 extraction as an effective pretreatment step for wax extraction in a miscanthus biorefinery. ACS sustainable chemistry & engineering, 4(11), 5979-5988. https://doi.org/10.1021/acssuschemeng.6b01220
Attard, Thomas M. ; McElroy, C.R. ; Gammons, Richard J. ; Slattery, John M. ; Supanchaiyamat, Nontipa ; Kamei, Claire Lessa Alvim ; Dolstra, Oene ; Trindade, Luisa M. ; Bruce, Neil C. ; McQueen-Mason, Simon J. ; Shimizu, Seishi ; Hunt, Andrew J. / Supercritical CO2 extraction as an effective pretreatment step for wax extraction in a miscanthus biorefinery. In: ACS sustainable chemistry & engineering. 2016 ; Vol. 4, No. 11. pp. 5979-5988.
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abstract = "The use of supercritical carbon dioxide (scCO2) to extract valuable lipophilic compounds from miscanthus was investigated and subsequent enzymatic saccharification was carried out to determine the impact of scCO2 extraction on downstream processing of miscanthus. Two miscanthus genotypes (Miscanthus x. giganteus and Miscanthus sinensis) were investigated and characterized. A diverse range of molecules were detected including long-chain hydrocarbons, fatty acids, n-policosanols, aldehydes, wax esters, sterols and steroid ketones. Quantification data indicates that there is a considerable difference among each species in the quantities of specific compounds. The waxes also exhibited significant differences in melting temperature, thus illustrating the opportunity for utilization in various applications. In addition to the isolation of valuable chemical compounds, the scCO2 pretreatment also had a beneficial effect on the downstream processing of the biomass. The total sugars released after saccharification was found to increase by around 20{\%} when coupled with scCO2 extraction, as compared to untreated samples.",
keywords = "Carbon dioxide, Extraction, Miscanthus, Saccharification, Supercritical, Waxes",
author = "Attard, {Thomas M.} and C.R. McElroy and Gammons, {Richard J.} and Slattery, {John M.} and Nontipa Supanchaiyamat and Kamei, {Claire Lessa Alvim} and Oene Dolstra and Trindade, {Luisa M.} and Bruce, {Neil C.} and McQueen-Mason, {Simon J.} and Seishi Shimizu and Hunt, {Andrew J.}",
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Attard, TM, McElroy, CR, Gammons, RJ, Slattery, JM, Supanchaiyamat, N, Kamei, CLA, Dolstra, O, Trindade, LM, Bruce, NC, McQueen-Mason, SJ, Shimizu, S & Hunt, AJ 2016, 'Supercritical CO2 extraction as an effective pretreatment step for wax extraction in a miscanthus biorefinery', ACS sustainable chemistry & engineering, vol. 4, no. 11, pp. 5979-5988. https://doi.org/10.1021/acssuschemeng.6b01220

Supercritical CO2 extraction as an effective pretreatment step for wax extraction in a miscanthus biorefinery. / Attard, Thomas M.; McElroy, C.R.; Gammons, Richard J.; Slattery, John M.; Supanchaiyamat, Nontipa; Kamei, Claire Lessa Alvim; Dolstra, Oene; Trindade, Luisa M.; Bruce, Neil C.; McQueen-Mason, Simon J.; Shimizu, Seishi; Hunt, Andrew J.

In: ACS sustainable chemistry & engineering, Vol. 4, No. 11, 07.08.2016, p. 5979-5988.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Supercritical CO2 extraction as an effective pretreatment step for wax extraction in a miscanthus biorefinery

AU - Attard, Thomas M.

AU - McElroy, C.R.

AU - Gammons, Richard J.

AU - Slattery, John M.

AU - Supanchaiyamat, Nontipa

AU - Kamei, Claire Lessa Alvim

AU - Dolstra, Oene

AU - Trindade, Luisa M.

AU - Bruce, Neil C.

AU - McQueen-Mason, Simon J.

AU - Shimizu, Seishi

AU - Hunt, Andrew J.

PY - 2016/8/7

Y1 - 2016/8/7

N2 - The use of supercritical carbon dioxide (scCO2) to extract valuable lipophilic compounds from miscanthus was investigated and subsequent enzymatic saccharification was carried out to determine the impact of scCO2 extraction on downstream processing of miscanthus. Two miscanthus genotypes (Miscanthus x. giganteus and Miscanthus sinensis) were investigated and characterized. A diverse range of molecules were detected including long-chain hydrocarbons, fatty acids, n-policosanols, aldehydes, wax esters, sterols and steroid ketones. Quantification data indicates that there is a considerable difference among each species in the quantities of specific compounds. The waxes also exhibited significant differences in melting temperature, thus illustrating the opportunity for utilization in various applications. In addition to the isolation of valuable chemical compounds, the scCO2 pretreatment also had a beneficial effect on the downstream processing of the biomass. The total sugars released after saccharification was found to increase by around 20% when coupled with scCO2 extraction, as compared to untreated samples.

AB - The use of supercritical carbon dioxide (scCO2) to extract valuable lipophilic compounds from miscanthus was investigated and subsequent enzymatic saccharification was carried out to determine the impact of scCO2 extraction on downstream processing of miscanthus. Two miscanthus genotypes (Miscanthus x. giganteus and Miscanthus sinensis) were investigated and characterized. A diverse range of molecules were detected including long-chain hydrocarbons, fatty acids, n-policosanols, aldehydes, wax esters, sterols and steroid ketones. Quantification data indicates that there is a considerable difference among each species in the quantities of specific compounds. The waxes also exhibited significant differences in melting temperature, thus illustrating the opportunity for utilization in various applications. In addition to the isolation of valuable chemical compounds, the scCO2 pretreatment also had a beneficial effect on the downstream processing of the biomass. The total sugars released after saccharification was found to increase by around 20% when coupled with scCO2 extraction, as compared to untreated samples.

KW - Carbon dioxide

KW - Extraction

KW - Miscanthus

KW - Saccharification

KW - Supercritical

KW - Waxes

U2 - 10.1021/acssuschemeng.6b01220

DO - 10.1021/acssuschemeng.6b01220

M3 - Article

VL - 4

SP - 5979

EP - 5988

JO - ACS sustainable chemistry & engineering

JF - ACS sustainable chemistry & engineering

SN - 2168-0485

IS - 11

ER -