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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 |
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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 |
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