Abstract
A process based on the use of a semicontinuous countercurrent supercritical fluid extraction has been developed to isolate and concentrate minor compounds, such as sterols and tocopherols, from olive oil. In the present work, an evaluation of the efficiency of different random packing materials (Raschig rings, Dixon rings, Fenske rings, and glass beads) to selectively separate sterols and tocopherols from olive oil has been performed. Parameters such as recovery, enrichment, and selectivity vs. TG are discussed. Considering the importance of supercritical fluid extraction as a clean processing technology and the interest in minor compounds with nutraceutical properties from olive oil, the process studied represents an alternative to the reuse of low-quality olive oil to extract high added-value products.
Similar content being viewed by others
References
Kiritsakis, A.K., Olive Oil: From the Tree to the Table, 2nd edn., Food & Nutrition Press, Trumbull, CT, 1998.
Sherwin, E.R., Antioxidants for Vegetable Oils, J. Am. Chem. Soc. 53:430–436 (1976).
Garewal, H.G., Antioxidants and Disease Prevention, CRC Press, Boca Raton, 1997.
Nilsson, W.B., E.J. Gauglitz, J.K. Hudson, V.F. Sout, and J. Spinelli, Fractionation of Menhaden Oil Ethyl Esters Using Supercritical Fluid CO2, J. Am. Oil Chem. Soc. 65:109–117 (1988).
Nilsson, W.B., E.J. Gauglitz, and J.K. Hudson, Supercritical Fractionation of Fish Oil Esters Using Incremental Pressure Programming and a Temperature Gradient, 66:1596–1600 (1989).
Nilsson, W.B., G.T. Seaborn, and J.K. Hudson, Partition Coefficients for Fatty Acid Esters in Supercritical Fluid CO2 With and Without Ethanol, 69:305–308 (1992).
Bondioli, P., C. Mariani, A. Lanzani, E. Fedeli, A. Mossa, and A. Muller, Lampante Olive Oil Refining with Supercritical Carbon Dioxide, 69:477–480 (1992).
Carmelo, P.J., P.J. Pereira, P.C. Simoes, and M. Nunes da Ponte, Scale-up of a Supercritical Extraction Unit for the Deacidification of Olive Oil, High Press. Chem. Eng. 12:487–492 (1996).
Simoes, P.C., P.J. Carmelo, P.J. Pereira, J.A. Lopez, and M. Nunes da Ponte, Quality Assessment of Refined Olive Oils by Gas Extraction, J. Supercrit. Fluids 13:337–341 (1998).
King, J.W., F. Favati, and S.L. Taylor, Production of Tocopherol Concentrates by Supercritical Fluid Extraction and Chromatography, Sep. Sci. Technol. 31:1843–1857 (1996).
García, A., A. de Lucas, J. Rincón, A. Alvarez, I. Gracia, and M.A. García, Supercritical Carbon Dioxide Extraction of Fatty and Waxy Material from Rice Bran, J. Am. Oil Chem. Soc. 73: 1127–1131 (1996).
Modey, W.K., D.A. Mulholland, and M.K. Raynor, Analytical Supercritical Fluid Extraction of Natural Products, Phytochem. Anal. 7:1–15 (1996).
Bondioli, P., C. Mariani, A. Lanzani, E. Fedeli, and A. Muller, Squalene Recovery from Olive Oil Deodorizer Distillates, J. Am. Oil Chem. Soc. 70:763–766 (1993).
Ibañez, E., J. Palacios, F.J. Señorans, G. Santa-Maria, and G. Reglero, Isolation and Separation of Tocopherols from Olive By-Products with Supercritical Fluids, 77:187–190 (2000).
Brunetti, L., A. Daghetta, I. Kikic, and L. Zanderighi, Deacidification of Olive Oils by Supercritical Carbon Dioxide, 66:209–217 (1989).
Señorans, F.J., A. Ruiz-Rodriguez, S. Cavero, A. Cifuentes, E. Ibáñez, and G. Reglero, Isolation of Antioxidant Compounds from Orange Juice by Using Countercurrent Supercritical Fluid Extraction (CC-SFE), J. Agric. Food Chem. 49:6039–6044 (2001).
Author information
Authors and Affiliations
Corresponding author
About this article
Cite this article
Ibáñez, E., Hurtado Benavides, A.M., Señoráns, F.J. et al. Concentration of sterols and tocopherols from olive oil with supercritical carbon dioxide. J Amer Oil Chem Soc 79, 1255–1260 (2002). https://doi.org/10.1007/s11746-002-0636-x
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/s11746-002-0636-x