Extraction of antioxidant polyphenolic compounds from peanut skin using water-ethanol at high pressure and temperature conditions
| Autor: | Yanina Estefanía Rossi, Romina Mariana Bodoira, Mariana Angélica Montenegro, Damian Maestri, Alexis Velez |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Antioxidant
General Chemical Engineering medicine.medical_treatment SUB-CRITICAL CONDITIONS INGENIERÍAS Y TECNOLOGÍAS 01 natural sciences chemistry.chemical_compound POLYPHENOLS 0404 agricultural biotechnology medicine Physical and Theoretical Chemistry Ethanol Chromatography 010401 analytical chemistry Extraction (chemistry) WATER/ETHANOL MIXTURES food and beverages Water extraction PRESSURIZED HOT WATER EXTRACTION 04 agricultural and veterinary sciences Condensed Matter Physics 040401 food science 0104 chemical sciences Ingeniería Química Monomer chemistry Proanthocyanidin Polyphenol High pressure Otras Ingeniería Química PEANUT SKIN ANTIOXIDANT ACTIVITY |
| Zdroj: | The Journal of Supercritical Fluids. 128:57-65 |
| ISSN: | 0896-8446 |
| DOI: | 10.1016/j.supflu.2017.05.011 |
| Popis: | This study evaluates the feasibility of using sub-critical water extraction (SWE) processes to obtain antioxidant phenolic compounds from peanut skins. Theoretical models were tested against experimental data in order to optimize extraction conditions and antioxidant activity of target compounds. The maximum concentration of total phenolics was achieved by using 60.5% ethanol as co-solvent, at 220 °C extraction temperature and 7 g/min solvent flow. Under these extraction conditions, a large number and variety of polyphenols were identified. Phenolic profile was dominated largely by monomeric and condensed flavonoids, particularly procyanidin and proanthocyanidin oligomers. Extracts obtained under those conditions also gave the best radical scavenging capacities, which were higher to those reached by using a synthetic antioxidant (BHT, butylhydroxytoluene). Kinetic studies showed a high extraction rate of polyphenols until the first 30 min of extraction, and it was in parallel with the highest antioxidant activity. Fil: Bodoira, Romina Mariana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina Fil: Rossi, Yanina Estefanía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones y Transferencia de Villa Maria. Universidad Nacional de Villa Maria. Centro de Investigaciones y Transferencia de Villa Maria; Argentina Fil: Montenegro, Mariana Angélica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones y Transferencia de Villa Maria. Universidad Nacional de Villa Maria. Centro de Investigaciones y Transferencia de Villa Maria; Argentina Fil: Maestri, Damian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina Fil: Velez, Alexis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahia Blanca. Planta Piloto de Ingeniería Química (I). Grupo Vinculado al Plapiqui - Investigación y Desarrollo en Tecnología Química; Argentina |
| Databáze: | OpenAIRE |
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