Obtaining phenolic compounds from jatoba (Hymenaea courbaril L.) bark by supercritical fluid extraction |
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| Affiliation: | 1. LASEFI/DEA/FEA (School of Food Engineering)/UNICAMP, University of Campinas, R. Monteiro Lobato, 80, 13083-862 Campinas, SP, Brazil;2. CCN (Centro de Ciências da Natureza)/Campus Lagoa do Sino—UFSCar, Federal University of São Carlos, Rod. Lauri Simões de Barros, km 12, SP-189, 18290-000 Buri, SP, Brazil;3. ThoMSon Mass Spectrometry Laboratory/UNICAMP, University of Campinas, R. Monteiro Lobato, 80, 13085-970 Campinas, SP, Brazil;1. Planta Piloto de Ingeniería Química - Universidad Nacional del Sur – CONICET CC 717 - 8000 Bahía Blanca, Prov. Buenos Aires, Argentina;2. IDTQ-Grupo Vinculado PLAPIQUI – CONICET, Argentina;3. Facultad de Ciencias Exactas Físicas y Naturales, Universidad Nacional de Córdoba – Av. Vélez Sarsfield 1611, Ciudad Universitaria, X5016GCA Córdoba, Argentina;4. Departmento de Engenharia Quimica, Universidad Estadual de Maringá, 87020-900 Maringá, PR, Brazil;1. Escola Superior de Agricultura “Luiz de Queiroz” – Universidade de São Paulo, Av. Pádua Dias, 11, São Dimas, Piracicaba, SP 13418-900, Brazil;2. Universidade Estadual do Centro-Oeste, PR 153, Km 7, Riozinho, Irati, PR 84500-000, Brazil;3. Universidade Federal de São Carlos (UFSCar), Centro de Ciências Humanas e Biológicas, Departamento de Biologia, SP 264, Km 110, Itinga, Sorocaba, SP 18052-780, Brazil;4. Instituto Florestal de São Paulo, CP 1322, São Paulo, SP 01059-970, Brazil;1. Laboratory of Thermodynamics and Transport Phenomena, School of Chemical Engineering, National Technical University of Athens 9, Heroon Polytechniou Str., Zografou Campus, 15780 Athens, Greece;2. Laboratory of Process Analysis and Design, School of Chemical Engineering, National Technical University of Athens 9, Heroon Polytechniou Str., Zografou Campus, 15780 Athens, Greece;3. Laboratory of Pharmacognosy and Natural Products Chemistry, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece;4. APIVITA SA, Industrial Park of Markopoulo, Greece |
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| Abstract: | The extraction of polyphenol compounds from jatoba (Hymenaea courbaril L. var stilbocarpa) bark using supercritical fluid extraction (SFE) with CO2 and cosolvents has been investigated. Among the solvent systems studied, SFE using CO2 and water (9:1, v/v), at 323 K and 35 MPa, presented the best results, with extract yield of 24%, and with high antioxidant activity (IC50 of 0.2 mg/cm3). This solvent system was used to determine global yield isotherms, which were built at 323 and 333 K, and 15, 25, and 35 MPa, using a second lot of jatoba. The highest yield was 11.5% at 15 MPa and 323 K, with maximum total phenolic compounds (TPC) of 335.00 mg TAE/g extract (d.b.) and total tannins content of 1.8 g/100 g raw material. A kinetic experiment was performed using optimized conditions, yielding 18% extract, and the kinetic parameters were used to scale-up the process from laboratory to pilot scale. Chemical analyses showed high content of phenolic compounds in the extracts of jatoba bark mostly due to the presence of procyanidins. |
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| Keywords: | Antioxidant activity Cosolvents Phenolic compounds Supercritical fluid extraction Tannins |
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