eCite Digital Repository

Sub-critical carbon dioxide extraction of the hexane extract of the leaves of Tasmannia lanceolata

Citation

Garland, SM and Menary, RC, Sub-critical carbon dioxide extraction of the hexane extract of the leaves of Tasmannia lanceolata, Journal of Essential Oil Research, 28, (1) pp. 55-63. ISSN 1041-2905 (2016) [Refereed Article]

Copyright Statement

Copyright 2015 Taylor & Francis

DOI: doi:10.1080/10412905.2015.1083488

Abstract

The extraction of Tasmannia lanceolata concrete using liquid CO2 at sub-critical conditions of pressure and temperature was investigated. A pilot-scale extractor was modified to include a second liquid metering pump for the recycling of the re-condensed CO2. Phase equilibrium was the controlling thermodynamic element in the rate of oil extraction while mass balance transfer dominated the solubilities of lower molecular weight, non-polar individual components. Polygodial, as the heaviest and highest oxygenated component, had a different apparent solubility to the lower monoterpenes and a solubility minimum was observed for this di-aldehyde at pressures in the order of 110 bar and at temperatures of 20°C to 24°C. The large variation in density associated with liquid carbon dioxide as it approaches critical temperature and pressure provides for higher selectivity of extraction.

Item Details

Item Type:Refereed Article
Keywords:critical carbon dioxide, liquid carbon dioxide, oleoresin, Tasmannia lanceolata, polygodial, concrete
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Horticultural production
Research Field:Post harvest horticultural technologies (incl. transportation and storage)
Objective Division:Plant Production and Plant Primary Products
Objective Group:Horticultural crops
Objective Field:Berry fruit (excl. kiwifruit)
UTAS Author:Garland, SM (Dr Sandra Garland)
UTAS Author:Menary, RC (Professor Robert Menary)
ID Code:105564
Year Published:2016
Web of Science® Times Cited:2
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2016-01-07
Last Modified:2017-11-02
Downloads:0

Repository Staff Only: item control page