Extraction of jojoba seed oil using supercritical CO2+ethanol mixture in green and high-tech separation process |
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| Affiliation: | 1. Graduate School of Science and Technology, Kumamoto University, Kumamoto 860 8555, Japan;2. Institute of Pulsed Power Science, Kumamoto University, Kumamoto 860 8555, Japan;3. Maruboshi Vinegar–ASCII Food Technology and Biology Technical Center, Fukuoka 827 0004, Japan;1. IDTQ – Grupo Vinculado PLAPIQUI – CONICET (Universidad Nacional de Córdoba), Av. Vélez Sarsfield 1611, X5016GCA Córdoba, Argentina;2. Instituto de Ciencia y Tecnología de los Alimentos – ICTA (FCEFyN – Universidad Nacional de Córdoba), Av. Vélez Sarsfield 1611, X5016GCA Córdoba, Argentina;3. Instituto Multidisciplinario de Biología Vegetal – IMBiV (Universidad Nacional de Córdoba – CONICET), Av. Vélez Sarsfield 1611, X5016GCA Córdoba, Argentina;4. Planta Piloto de Ingeniería Química – PLAPIQUI (Universidad Nacional del Sur – CONICET), Camino La Carrindanga Km 7 – CC 717, Bahía Blanca, Argentina;1. Biopharmaceutics and Pharmaceutical Technology, Johannes Gutenberg University, 55128 Mainz, Germany;2. Third Department of Medicine (Hematology, Oncology and Pneumology), Johannes Gutenberg University Medical Center, 55131 Mainz, Germany;3. Department of Pharmaceutical Sciences, College of Pharmacy, The University of Michigan, 428 Church Street, Ann Arbor, MI 48109, USA;4. Institute of Zoology, Johannes Gutenberg University, 55128 Mainz, Germany;5. Institute of Immunology, Johannes Gutenberg University Medical Center, 55131 Mainz, Germany;1. Department of Production and Characterization of Novel Foods, Institute of Food Science Research (CIAL), CEI UAM+CSIC, Madrid, Spain;2. Chemistry Department, Faculty of Science, Helwan University, Cairo, Egypt;1. Departamento de Ingeniería Química y Bioprocesos, Pontifica Universidad Católica de Chile, Santiago, Chile;2. Departamento de Ingeniería Química y Tecnología del Medio Ambiente, Escuela de Ingenierías Industriales, Universidad de Valladolid, Spain;3. Departamento de Ingeniería Química y Ambiental, Universidad Técnica Federico Santa María, Valparaiso, Chile;4. Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, Campus Monterrey, Mexico |
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| Abstract: | In this study, the extraction of jojoba seed oil obtained from jojoba seed using both supercritical CO2 and supercritical CO2+ethanol mixtures was investigated. The recovery of jojoba seed oil was performed in a green and high-tech separation process. The extraction operating was carried out at operating pressures of 25, 35 and 45 MPa, operating temperatures of 343 and 363 K, supercritical fluid flow rates of 3.33 × 10?8, 6.67 × 10?8 and 13.33 × 10?8 m3 s?1, entrainer concentrations of 2, 4 and 8 vol.%, and average particle diameters of 4.1 × 10?4, 6.1 × 10?4, 8.6 × 10?4 and 1.2 × 10?3 m. It was found that a green chemical modifier such as ethanol could enhance the solubilities, initial extraction rate and extraction yield of jojoba seed oil from the seed matrix as compared to supercritical CO2. In addition, it was found that the solubility, the initial extraction rate and the extraction yield depended on operating pressure and operating temperature, entrainer concentration, average particle size and supercritical solvent flow rate. The solubility of jojoba seed oil and initial extraction rate increased with temperature at the operating pressures of 35 and 45 MPa and decreased with increasing temperature at the operating pressure of 25 MPa. Furthermore, supercritical fluid extraction involved short extraction time and minimal usage of small amounts entrainer to the CO2. About 80% of the total jojoba seed oil was extracted during the constant rate period at the pressure of 35 and 45 MPa. |
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