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    Abstract
2017 (Vol. 13, Issue: 4)
Research Article

Optimisation of Process Parameters for Supercritical Carbon Dioxide Extraction of Oil from Gac Seed Kernel Powder

1, 2Anh V. Le, 2Paul D. Roach, 2, 4Minh H. Nguyen and 2, 3Sophie E. Parks
1Faculty of Bio-Food Technology and Environment, University of Technology (HUTECH), HCMC, Vietnam
2School of Environmental and Life Sciences, University of Newcastle
3NSW Department of Primary Industries, Central Coast Primary Industries Centre, Ourimbah, NSW 2258
4School of Science and Health, Western Sydney University, Penrith, NSW 2751, Australia
 

DOI: 10.19026/ajfst.13.4444
Submitted Accepted Published
February 9, 2017 May 4, 2017 April 25, 2017

  How to Cite this Article:

1, 2Anh V. Le, 2Paul D. Roach, 2, 4Minh H. Nguyen and 2, 3Sophie E. Parks, 2017. Optimisation of Process Parameters for Supercritical Carbon Dioxide Extraction of Oil from Gac Seed Kernel Powder.  Advance Journal of Food Science and Technology, 13(4): 170-177.

DOI: 10.19026/ajfst.13.4444

URL: http://www.maxwellsci.com/jp/mspabstract.php?jid=AJFST&doi=ajfst.13.4444

Abstract:


This study aimed to maximize the oil yield from Gac seed kernels using supercritical carbon dioxide (SC-CO2) extraction. Gac seed kernel powder (4 g) with particle diameters <500 μm was extracted for 32 min. Response surface methodology with central composite design was used to optimize the SC-CO2 extraction parameters: temperature (60-80C), pressure (5,000-7,000 psi (34,474-48,263 kPa)) and SC-CO2 flow rate (1-2.5 mL/min). The oil yield, accurately represented by a second order equation (R2 = 0.99, p<0.0001), was predicted to be most substantially and significantly influenced by temperature (p<0.0001), followed by pressure (p<0.02) but not by the CO2 flow rate (p = 0.20). The optimum conditions were predicted to be: temperature of 73C, pressure of 5,900psi (40,679kPa) and CO2 flow rate of 1.5 mL/min. The optimum oil yield was predicted to be 34.10.8% (g oil/100 g Gac seed kernel powder) and experimentally validated at 33.90.5%. The oil was likely high in saturated fat, being solid at room temperature and having a low iodine value, with 33.21.1% being unsaponifiable matter.

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    Competing interests

The authors have no competing interests.
    Open Access Policy

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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© The Author(s) 2017

ISSN (Online):  2042-4876
ISSN (Print):   2042-4868
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