Batch Extraction of Oil from Rice Bran with Liquefied Low Temperature Dimethyl Ether

• HARA Yuki

  Faculty and Graduate School of Environmental Engineering, The University of Kitakyushu

• KIKUCHI Asuka

  Faculty and Graduate School of Environmental Engineering, The University of Kitakyushu

• NORIYASU Atsuko

  Faculty and Graduate School of Environmental Engineering, The University of Kitakyushu

• FURUKAWA Hiroka

  Faculty and Graduate School of Environmental Engineering, The University of Kitakyushu

• TAKAICHI Hiroshi

  Faculty and Graduate School of Environmental Engineering, The University of Kitakyushu

• INOKUCHI Reina

  Faculty and Graduate School of Environmental Engineering, The University of Kitakyushu

• BOUTEAU François

  Université Paris Diderot, Sorbonne Paris Cité, Institut des Energies de Demain LINV-DiSPAA, Department of Agri-Food and Environmental Science, University of Florence University of Florence LINV Kitakyushu Research Center

• CHIN Shun

  Faculty and Graduate School of Environmental Engineering, The University of Kitakyushu

• LI Xiaohong

  Faculty and Graduate School of Environmental Engineering, The University of Kitakyushu

• NISHIHAMA Syouhei

  Faculty and Graduate School of Environmental Engineering, The University of Kitakyushu

• YOSHIZUKA Kazuharu

  Faculty and Graduate School of Environmental Engineering, The University of Kitakyushu

• KAWANO Tomonori

  Faculty and Graduate School of Environmental Engineering, The University of Kitakyushu University of Florence LINV Kitakyushu Research Center Univ Paris Diderot, Sorbonne Paris Cité, Paris Interdisciplinary Energy Research Institute

抄録

From a green chemical point of view, techniques for extracting organic substances employing conventional solvents must be replaced with novel environment-friendly techniques. Dimethyl ether (DME) may be one of such alternative solvents to be used. Rice bran is a co-product of rice milling, which is rich in oil content. Theoretically, around 20-25% of the total weight of rice bran must be oily components known as rice bran oil (RBO). In the present study, liquefied DME was used as a low temperature solvent for extracting RBO. From 10 g of fully dried rice bran used in a single batch extraction with DME, ca. 0.90 g of RBO were recovered (efficiency, 9.0%). Although the efficiency of total RBO extraction by batch extraction with DME was lower than the conventional solvent extraction system using acetone, lipid-pigment complexes potentially beneficial for human health such as ferulic acid-conjugated lipids were efficiently extracted. Fatty acid compositions found in RBO prepared by DME extraction and conventional solvent extraction did not differ. Lastly, improvement of the extraction efficiency was attempted by designing a column-based flow system allowing extraction of RBO with an optimized amount of liquefied DME. By this approach, the efficiency of RBO extraction attained ca. 24% (ca. 0.24 g of RBO extracted and recovered from 1 g of dried rice bran), using 10 to 20 g of liquefied DME applied to 1 g of rice bran packed in the column-type extraction chamber.

収録刊行物

• Solvent Extraction Research and Development, Japan

  Solvent Extraction Research and Development, Japan 23 (1), 87-99, 2016

  日本溶媒抽出学会

キーワード

• General Chemical Engineering
• General Chemistry

詳細情報

• CRID: 1390001205740818560
• NII論文ID: 130005152876
• NII書誌ID: AA11114608
• DOI: 10.15261/serdj.23.87
• ISSN: 21884765
• ISSN: 13417215
• NDL書誌ID: 027448348
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I027448348
• Web Site: https://www.jstage.jst.go.jp/article/serdj/23/1/23_87/_pdf
• 本文言語コード: en
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