Extraction of palm oil using propane,ethanol and its mixtures as compressed solvent |
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| Affiliation: | 1. Núcleo de Estudos em Sistemas Coloidais, Instituto de Tecnologia e Pesquisa, PEP/UNIT, Aracaju, SE 49032-490, Brazil;2. Departamento de Eng. Química, Universidade Estadual Maringá, Maringá, PR 87020-900, Brazil;3. Departamento de Eng. Química, Universidade Federal do Rio Grande do Norte, Natal, RN 59078-970, Brazil;1. Agronomy Department, State University of Maringá, UEM, Maringá, PR, 87020-900, Brazil;2. Chemical Engineering Department, State University of Maringá, UEM, Maringá, PR, 87020-900, Brazil;3. Federal Institute of Paraná, Campus Paranavaí, Paranavaí, 87703-536, PR, Brazil;1. Center for Study on Colloidal Systems (NUESC)/Institute of Technology and Research (ITP), Av. Murilo Dantas, 300, Aracaju, SE CEP 49032-490, Brazil;2. Tiradentes University (UNIT), Postgraduate Programme in Process Engineering (PEP), Health and Environment (PSA) and Industrial Biotechnology (PBI), Av. Murilo Dantas, 300, Aracaju, SE CEP 49032-490, Brazil;3. Embrapa Coastal Tablelands, Av. Beira Mar, 3.250, Aracaju, SE CEP 49025-040, Brazil;1. Laboratory of Thermodynamics and Supercritical Extraction (LATESC), Department of Chemical Engineering and Food Engineering (EQA), Technological Center (CTC), Federal University of Santa Catarina (UFSC), P.O. Box 476, 88040-900 Florianópolis, SC, Brazil;2. Laboratory of Fats and Oils, Department of Food Science and Technology (CAL), Center of Agricultural Sciences (CCA), Federal University of Santa Catarina (UFSC), Rod. Admar Gonzaga, 1346, 88034-001 Florianópolis, SC, Brazil;3. Center for Research on Colloidal Systems (NUESC), Institute of Research and Technology (ITP), Tiradentes University (UNIT), 49032-490 Aracaju, SE, Brazil;1. Department of Chemistry, State University of Maringa, 5790 Colombo Avenue, 87020-900 Maringa, PR, Brazil;2. Center of Agricultural Sciences, State University of Maringa, 5790 Colombo Avenue, 87020-900 Maringa, PR, Brazil;3. Department of Chemical Engineering, State University of Maringa, 5790 Colombo Avenue, 87020-900 Maringa, PR, Brazil;4. Federal Technological University of Parana, 4232 Brazil Avenue, 85884-000 Medianeira, PR, Brazil;5. West Paraná State University, 645 Faculdade Street, 85903-000 Toledo, PR, Brazil |
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| Abstract: | This work is aimed to investigate the extraction of palm oil using pressurized ethanol and propane as solvents. The effects of temperature (293⿿333 K), pressure (from 10 to 20 MPa), solvent flow rate (from 1 to 5 mL/min), and composition of the solvent mixture were evaluated on the oil extraction yield, and chemical profile of the extracted oils. The experiments were conducted in a 100 mL extractor coupled to a HPLC pump for ethanol and a syringe pump for the propane displacement. Global yields up to 75 wt% were obtained in the experiments. The kinetic profiles of the extractions were described by the Sovová⿿s model, which presented good agreement with the experimental observations. The palm oils extracted with distinct solvents were characterized regarding its density and viscosity in a temperature range from 293 to 343 K, its chemical profile determined by GC/MS, and carotenoid content. |
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| Keywords: | Palm oil Extraction Propane/ethanol mixtures Apparent solubility Kinetic extraction modeling Carotenoid content |
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