Recovery of grape seed oil by liquid and supercritical carbon dioxide extraction: a comparison with conventional solvent extraction |
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| Affiliation: | 1. Departamento de Desenvolvimento de Processos e Produtos, Faculdade de Engenharia Química, Universidade Estadual de Campinas (UNICAMP), 13083-852 Campinas, São Paulo, Brazil;2. Departamento de Ciência de Alimentos, Faculdade de Engenharia de Alimentos, Universidade Estadual de Campinas (UNICAMP), 13083-852 Campinas, São Paulo, Brazil;3. Departamento de Alimentos e Nutrição, Faculdade de Engenharia de Alimentos, Universidade Estadual de Campinas (UNICAMP), 13083-852 Campinas, São Paulo, Brazil;1. Department of Industrial Engineering DII, University of Padua, Via Marzolo 9, 35131 Padua, Italy;2. Department of Pharmaceutical and Pharmacological Sciences, University of Padua, Via Marzolo 5, 35131 Padua, Italy;1. Department of Energy & Fuels, ETS Ingenieros de Minas y Energía, Universidad Politécnica de Madrid, Ríos Rosas 21, 28003 Madrid, Spain;2. Grupo de Combustibles y Motores, ETS de Ingenieros Industriales, Universidad de Castilla-La Mancha, Avda. Camilo José Cela s/n, 13071 Ciudad Real, Spain |
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| Abstract: | In this work the extraction of grape seed oil by means of liquid and supercritical carbon dioxide as solvent is described. The operating conditions to determine the maximum extraction yield were studied. The efficiency of supercritical fluid extraction (SFE) was similar to that obtained by conventional liquid extraction, but the quality of the supercritically extracted oil was higher, equivalent to a degummed, liquid- extracted oil. It is considered that SFE is competitive with conventional liquid extraction, because the solvent distillation and oil refining stages can be omitted. |
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