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Rodríguez-Llorente D, Martín-Gutiérrez D, Suárez-Rodríguez P, Navarro P, Álvarez-Torrellas S, García J, Larriba M. Sustainable recovery of phenolic antioxidants from real olive vegetation water with natural hydrophobic eutectic solvents and terpenoids. ENVIRONMENTAL RESEARCH 2023; 220:115207. [PMID: 36603659 DOI: 10.1016/j.envres.2022.115207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/25/2022] [Accepted: 12/31/2022] [Indexed: 06/17/2023]
Abstract
Olive oil production leads to the generation of olive mill wastewater (OMWW). Due to the presence of phenolic compounds, they are difficult to process, but they represent a source of high-added value chemicals since they have antioxidant and therapeutic properties. This work has studied the extraction of phenolic compounds from a type of OMWW, olive vegetation water, which presents these compounds in a more diluted dosage than in other studied to date, to revalue this waste stream. A real olive vegetation water from a Spanish olive oil producer was used, and liquid-liquid extraction was applied. Terpenoids and terpene-based hydrophobic eutectic solvents were systematically used to extract phenolic compounds following the concentrations of tyrosol, catechol, caffeic acid, and total phenolic content. By molecular simulation with the COSMO-RS method, 4 terpenoids, and 2 eutectic solvents were selected and compared with 2 conventional solvents. The Solvent/Feed ratio in the extraction of phenolic compounds was studied, showing that the solvents with the highest extraction results were geraniol, eucalyptol, and eutectic solvent menthol + camphor, which outperformed conventional solvents methyl isobutyl ketone and diisopropyl ether. Menthol + camphor gave total phenol extraction yields of 88.73% at a Solvent/Feed ratio in volume of 0.50, surpassing all solvents tested. A solvent reuse and regeneration process was applied by back-extraction of the 4 solvents: FTIR results showed the stability of the solvents while maintaining yields in the solvent reuse process. The phenolic compounds could be concentrated in the alkaline phase to factors up to 49.3 to the initial concentration in olive vegetation water. The alkaline phases were neutralized to obtain a precipitate with a caffeic acid content of up to 26 % wt%, and a tyrosol-rich supernatant with a concentration of up to 6.54 g/L. This work proposes a process using natural solvents to extract phenolic compounds from olive vegetation water.
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Affiliation(s)
- Diego Rodríguez-Llorente
- Catalysis and Separation Processes Research Group (CyPS), Department of Chemical Engineering and Materials, Complutense University of Madrid, Avda. Complutense S/n, 28040, Madrid, Spain
| | - Diego Martín-Gutiérrez
- Catalysis and Separation Processes Research Group (CyPS), Department of Chemical Engineering and Materials, Complutense University of Madrid, Avda. Complutense S/n, 28040, Madrid, Spain
| | - Pablo Suárez-Rodríguez
- Catalysis and Separation Processes Research Group (CyPS), Department of Chemical Engineering and Materials, Complutense University of Madrid, Avda. Complutense S/n, 28040, Madrid, Spain
| | - Pablo Navarro
- Department of Chemical Engineering, Autonomous University of Madrid, C/ Francisco Tomás y Valiente 7, 28049, Madrid, Spain
| | - Silvia Álvarez-Torrellas
- Catalysis and Separation Processes Research Group (CyPS), Department of Chemical Engineering and Materials, Complutense University of Madrid, Avda. Complutense S/n, 28040, Madrid, Spain
| | - Juan García
- Catalysis and Separation Processes Research Group (CyPS), Department of Chemical Engineering and Materials, Complutense University of Madrid, Avda. Complutense S/n, 28040, Madrid, Spain
| | - Marcos Larriba
- Catalysis and Separation Processes Research Group (CyPS), Department of Chemical Engineering and Materials, Complutense University of Madrid, Avda. Complutense S/n, 28040, Madrid, Spain.
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Quintana AA, Sztapka AM, Santos Ebinuma VDC, Agatemor C. Enabling Sustainable Chemistry with Ionic Liquids and Deep Eutectic Solvents: A Fad or the Future? Angew Chem Int Ed Engl 2022; 61:e202205609. [PMID: 35789078 DOI: 10.1002/anie.202205609] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Indexed: 12/17/2022]
Abstract
Ionic liquids (ILs) and deep eutectic solvents (DESs) debuted with a promise of a superior sustainability footprint due to their low vapor pressure. However, their toxicity and high cost compromise this footprint, impeding their real-world applications. Fortunately, their property tunability through a rational selection of precursors, including bioderived ones, provides a strategy to ameliorate toxicity, lower cost, and endow new functions. This Review discusses whether ILs and DESs are sustainable solvents and how they contribute to sustainable chemical processes.
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Affiliation(s)
| | | | - Valéria de Carvalho Santos Ebinuma
- Department of Engineering of Bioprocesses and Biotechnology, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - Christian Agatemor
- Department of Chemistry, University of Miami, Coral Gables, FL 33124, USA.,Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL 33136, USA
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Agatemor C, Quintana AA, Sztapka LM, Ebinuma VDCS. Enabling Sustainable Chemistry with Ionic Liquids and Deep Eutectic Solvents: a Fad or the Future? Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Christian Agatemor
- University of Miami - Coral Gables Campus: University of Miami Chemistry 1301 Memorial Dr 33146 Coral Gables UNITED STATES
| | - Aline Andrea Quintana
- University of Miami - Coral Gables Campus: University of Miami Chemistry UNITED STATES
| | - Lani Maria Sztapka
- University of Miami - Coral Gables Campus: University of Miami Chemistry UNITED STATES
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Rozas S, Atilhan M, Aparicio S. Bulk liquid phase and interfacial behavior of cineole – Based deep eutectic solvents with regard to carbon dioxide. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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