首页|Optimization of supercritical-CO2 process for extraction of tocopherol-rich oil from canola seeds

Optimization of supercritical-CO2 process for extraction of tocopherol-rich oil from canola seeds

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  • NSTL
  • Elsevier
Supercritical carbon dioxide extraction (SC-CO2) was used to obtain tocopherol-rich oil from canola seeds. The response surface methodology (RSM) with central composite design (CCD) was used to optimize the processing conditions including pressure, temperature, and extraction time to obtain an oil with high concentration of tocopherols and bioactive properties. The effect of co-solvent on the yields of tocopherol-rich oil was also investigated. The results showed that a tocopherol-rich oil was produced by SC-CO2 under the optimized extraction conditions at pressure of 18 MPa, temperature of 70 degrees C, holding time of 60 min, and extraction time of 30 min, which have eight times higher concentration than the classical extraction method with n-hexane as solvent. Extending extraction time and adding a co-solvent (ethanol) had negative impacts on the tocopherol-rich oils. No significant differences (p > 0.05) were observed on the fatty acid compositions of the extracted canola oils by the two different extraction processes of SC-CO2 and traditional solvent extraction.

CanolaTocopherolVitamin ESupercritical-CO2

Scanlon, Martin、Xue, Sophia Jun、Lu, John、Sun, Qingrui、Shi, John

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Univ Manitoba, Fac Agr & Food Sci, Winnipeg, MB R3T 2N2, Canada

Agr & Agri Food Canada, Guelph Res & Dev Ctr, Guelph, ON N1G 5C9, Canada

Agr & Agri Food Canada, Lethbridge Res & Dev Ctr, Lethbridge, AB, Canada

Heilongjiang Bayi Agr Univ, Coll Food Sci, Daqing 163319, Peoples R China

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2021

10.1016/j.lwt.2021.111435

LWT-Food Science & Technology

LWT-Food Science & Technology

ISSN：0023-6438
年,卷(期)：2021.145
  • 9
  • 34