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Comparison of Supercritical Fluid and Hexane Extraction Methods in Extracting Kenaf (Hibiscus cannabinus) Seed Oil Lipids

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Journal of the American Oil Chemists' Society

Abstract

The objective of this study was to investigate and compare fatty acids, tocopherols and sterols of kenaf seed oil extracted by supercritical carbon dioxide and traditional solvent methods. Fatty acids, tocopherols and sterols were determined in the extracted oils as functions of the pressure (400 bar, 600 bar), temperature (40 °C, 80 °C) and CO2 flow rate (25 g/min) using a 1-L extraction vessel. Gas chromatography was used to characterize fatty acids and sterols of the obtained oils while tocopherols were quantified by HPLC. No differences were found in the fatty acid compositions of the various oil extracts and the main components were found to be linoleic (38%), oleic (35%), palmitic (20%) and stearic acid (3%). Extraction of tocopherols using high pressure (600 bar/40 °C, 600 bar/80 °C) gave higher total tocopherols (88.20 and 85.57 mg/100 g oil, respectively) when compared with hexane extraction which gave yield of 62.38 mg/100 g oil. Extraction of kenaf seed oil using supercritical fluid extraction at high temperature (80 °C) gave higher amounts of sterols when compared with hexane extraction.

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Authors and Affiliations

  1. Department of Food Science & Technology, Sudan University of Science & Technology, PO Box 71, Khartoum North, Sudan

    Abdalbasit Adam Mariod

  2. Department for Lipid Research, Max Rubner-Institute, Federal Research Institute for Nutrition and Food, 48147, Münster, Germany

    Bertrand Matthäus

  3. Laboratory of Molecular Biomedicine, Institute of Bioscience, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia

    Abdalbasit Adam Mariod & Maznah Ismail

Authors
  1. Abdalbasit Adam Mariod
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  2. Bertrand Matthäus
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  3. Maznah Ismail
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Correspondence to Maznah Ismail.

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Mariod, A.A., Matthäus, B. & Ismail, M. Comparison of Supercritical Fluid and Hexane Extraction Methods in Extracting Kenaf (Hibiscus cannabinus) Seed Oil Lipids. J Am Oil Chem Soc 88, 931–935 (2011). https://doi.org/10.1007/s11746-010-1754-z

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  • DOI: https://doi.org/10.1007/s11746-010-1754-z

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