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Atmospheric Cold Plasma Treatment of Soybean Oil with Hydrogen Gas
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  • Ximena Yepez,
  • Haci Baykara,
  • Lei Xu,
  • Kevin Keener
Ximena Yepez
Escuela Superior Politecnica del Litoral
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Haci Baykara
Escuela Superior Politecnica del Litoral
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Lei Xu
Purdue University
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Kevin Keener
University of Guelph
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Abstract

High voltage atmospheric cold plasma (HVACP) treatment generates reactive gas species that induce inter and intramolecular reactions in soybean oil. The goal of this study is to analyze the effect of HVACP treatment on the chemical structure of soybean oil in a hydrogen gas environment at atmospheric pressure. HVACP was used to treat soybean oil (15g), for up to 6h by triplicate. Plasma generated reactive gas species interact with the sample producing three distinct fractions identified as a liquid, gel, and solid. Fatty acid profile, FTIR, 1H-NMR/13C-NMR, GPC, thermal properties and peroxide value, were used to characterize the chemical structure. Results indicated a lower content of polyunsaturated fatty acids, increased content of saturated fatty acids, and the presence of isomers. An insoluble portion was observed in the solid fraction and increase with treatment time up to 42% in the 6h treated samples. Plasma species may cause two main reactions: polymerization and hydrogenation.

Peer review status:ACCEPTED

06 Jun 2020Submitted to Journal of the American Oil Chemists' Society
08 Jun 2020Submission Checks Completed
08 Jun 2020Assigned to Editor
16 Jun 2020Reviewer(s) Assigned
07 Jul 2020Review(s) Completed, Editorial Evaluation Pending
10 Jul 2020Editorial Decision: Revise Major
03 Aug 20201st Revision Received
03 Aug 2020Submission Checks Completed
03 Aug 2020Assigned to Editor
04 Aug 2020Review(s) Completed, Editorial Evaluation Pending
05 Aug 2020Editorial Decision: Accept