Skip to main content

Advertisement

Log in

Extraction of corn germ oil with supercritical CO2 and cosolvents

  • Original Article
  • Published:
Journal of Food Science and Technology Aims and scope Submit manuscript

Abstract

The aim of this work was to investigate corn germ oil extraction using supercritical CO2 and cosolvents addition (hexane, acetone and ethanol). The effects of temperature (45–85 °C) and pressure (15–25 MPa) on the extract yield were evaluated for the tests conducted only with supercritical CO2. The addition of cosolvents to supercritical CO2 was also examined at 25 MPa and 60 °C. The conventional Soxhlet extraction with different organic solvents was also performed for comparison purposes. The results of extraction with supercritical fluid showed that the yields increased with pressure at each temperature, but decreased with temperature increase. Mathematical modeling was applied to describe extraction curves, with very good fits. The addition of cosolvents led to higher yield, with a maximum yield of 13.81% using ethanol. The analysis of fatty acids profile did not present significant differences among the evaluated methods. On the other hand, the antioxidant activity of the extracts obtained by supercritical CO2 extraction was higher than the ones verified for the extracts collected after conventional Soxhlet extraction. Therefore, the use of supercritical CO2 extraction could be an interesting way to preserve antioxidant properties of this oil in order to use it for pharmaceutical purposes.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2

Similar content being viewed by others

References

Download references

Acknowledgements

The authors are grateful to Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG), Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) - Program PNPD, Project Number 8882.314720/2013-01 and Vale S.A. for the financial support and CARAMURU S.A. that kindly provided the corn germ used in this work. Funding was provided by CAPES (Grant Nos. Masters Degree fellowship PPGEQ/UFU, PH.D. Fellowship PPGEQ/UFU).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Érika Ohta Watanabe.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Marinho, C.M., Lemos, C.O.T., Arvelos, S. et al. Extraction of corn germ oil with supercritical CO2 and cosolvents. J Food Sci Technol 56, 4448–4456 (2019). https://doi.org/10.1007/s13197-019-03923-2

Download citation

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s13197-019-03923-2

Keywords

Navigation