Identification, quantification and Chrastil modelling of wheat straw wax extraction using supercritical carbon dioxide

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

Fersiynau electronig

Dangosydd eitem ddigidol (DOI)

  • R.J. Marriott
  • R. Marriott
  • E. Sin
  • A. Hunt
  • H. Clark
Supercritical carbon dioxide (scCO2) can be used as a “green” selective solvent for extractions of wheat straw waxes. For the first time, the crude extraction yields of wheat straw waxes and the yields of a single high value group of components (wax esters) using various scCO2 conditions (305.15 to 373.15 K and 7.5 to 40 MPa) have been modelled using the Chrastil equation (Chrastil, 1982). The model accurately predicts both the crude yield and percentage of valuable wax esters within the extracts enabling maximum extraction efficiency. The key compounds within the waxes (fatty acids, sterols, fatty alcohols, wax esters, β-diketones and alkanes) have been identified and quantified. This study highlighted that, 14,16 hentriacontanedione was extracted at critical temperature and pressure in concentrations of 1000 μg.g−1 straw. This molecule could demonstrate significant potential as a natural chelate for metal recovery and also in the formation of super-hydrophobic coatings.
Iaith wreiddiolSaesneg
Tudalennau (o-i)293-300
CyfnodolynComptes Rendus Chimie
Cyfrol17
Rhif y cyfnodolyn3
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 27 Ion 2014
Gweld graff cysylltiadau