Journal
JOURNAL OF FOOD ENGINEERING
Volume 168, Issue -, Pages 240-244Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jfoodeng.2015.08.004
Keywords
Virgin coconut oil; Supercritical carbon dioxide; Solubility; Chrastil model; del Valle-Aguilera model
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Funding
- Universiti Sains Malaysia, Pulau Pinang [1001/PJJAUH/814151]
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The dynamic method was utilized to investigate the solubility of virgin coconut oil (VCO) in SC-CO2 at temperatures and pressures ranging from 313 K to 353 K and 20.7 MPa to 34.5 MPa, respectively. The highest solubility, 0.0408 gig, was obtained at 353 K and 34.5 MPa, which were the highest temperature and pressure levels used in the study. VCO solubility increases with temperature at pressures between 31.0 and 34.5 MPa, while at pressures between 20.7 and 24.1 MPa, VCO solubility decreases with an increase in temperature. At pressures between 27.5 and 30.5 MPa, a solubility cross-over region was observed. VCO solubility data was correlated with the Chrastil and del Valle-Aguilera models. Within the range of experimental conditions, the solubility data showed a good correlation to both models, with an average absolute percent deviation (AAPD) value of 0.93 and 0.39 for the Chrastil and del Valle-Aguilera model, respectively. (C) 2015 Elsevier Ltd. All rights reserved.
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