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Effect of Operating Parameters on Oil and Phenolic Extraction Using Supercritical CO2

  • Original Paper
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Journal of the American Oil Chemists' Society

Abstract

Supercritical fluid extraction (SFE) with carbon dioxide was used to extract oil from canola press cake. Different operating conditions, e.g. pressure, temperature, and co-solvent % were investigated to optimize extraction parameters to yield canola meal with <4% oil. The residual oil content in the extracted canola meal reduced to 2.1–2.9% in our experimental trials. Residues of the optimum conditions based on oil yield were compared for the total phenolic content and the main phenolic compounds. Sinapine (the choline ester of sinapic acid) was the major phenolic constituent in both the SFE and n-hexane extracted canola meals and press cakes. n-Hexane extracted residues showed the retention of the highest sinapic acid, sinapine, sinapoyl glucose and total phenolic contents (mg/g) while the SF-extracted residues showed the lowest values for these compounds.

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Acknowledgments

Phenolic analysis was funded by the Natural Sciences and Engineering Research Council of Canada (NSERC), Canola Council of Canada and Syngenta Inc, Canada. The authors wish to acknowledge Dr. R. Khattab and L. Lin for their technical assistance.

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Authors and Affiliations

  1. Richardson Centre for Functional Foods and Nutraceuticals, University of Manitoba, 196 Innovation Drive, Winnipeg, MB, R3T 6C5, Canada

    Haiyan Li, Jun Wu & Curtis B. Rempel

  2. Department of Human Nutritional Sciences, Richardson Centre for Functional Foods and Nutraceuticals, University of Manitoba, 196 Innovation Drive, Winnipeg, MB, R3T 6C5, Canada

    Usha Thiyam

Authors
  1. Haiyan Li
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  2. Jun Wu
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  3. Curtis B. Rempel
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  4. Usha Thiyam
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Correspondence to Haiyan Li.

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Li, H., Wu, J., Rempel, C.B. et al. Effect of Operating Parameters on Oil and Phenolic Extraction Using Supercritical CO2 . J Am Oil Chem Soc 87, 1081–1089 (2010). https://doi.org/10.1007/s11746-010-1594-x

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  • DOI: https://doi.org/10.1007/s11746-010-1594-x

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