Novel tributyl phosphate-based deep eutectic solvent: Application in microwave assisted extraction of carotenoids.

Autor: Görüşük EM; Institute of Graduate Studies and Department of Chemistry, Faculty of Engineering, Istanbul University-Cerrahpaşa, 34320, Istanbul, Türkiye., Lalikoglu M; Istanbul University, Faculty of Science, Department of Chemistry, Fatih 34134, Istanbul, Türkiye., Aşçı YS; Istanbul University, Faculty of Science, Department of Chemistry, Fatih 34134, Istanbul, Türkiye., Bener M; Istanbul University, Faculty of Science, Department of Chemistry, Fatih 34134, Istanbul, Türkiye., Bekdeşer B; Istanbul University-Cerrahpaşa, Faculty of Engineering, Department of Chemistry, Avcilar 34320, Istanbul, Türkiye. Electronic address: burcubek@iuc.edu.tr., Apak R; Istanbul University-Cerrahpaşa, Faculty of Engineering, Department of Chemistry, Avcilar 34320, Istanbul, Türkiye; Turkish Academy of Sciences (TUBA), 06690 Çankaya, Ankara, Turkey. Electronic address: rapak@istanbul.edu.tr.
Jazyk: angličtina
Zdroj: Food chemistry [Food Chem] 2024 Nov 30; Vol. 459, pp. 140418. Date of Electronic Publication: 2024 Jul 14.
DOI: 10.1016/j.foodchem.2024.140418
Abstrakt: A contribution to the use of deep eutectic solvents (DES) and microwave-assisted extraction (MAE) was made for bioactive compounds recovery, especially those with lipophilic character, from tomato and carrot samples rich in carotenoids. For the first time, a novel deep eutectic solvent was synthesized, comprising tributyl phosphate (TBP) as a hydrogen bond acceptor and acetic acid (AcOH) as a hydrogen bond donor. The total antioxidant capacity (TAC) of tomato and carrot extracts obtained by MAE, in which optimization of operational parameters and modeling were made with the use of Box-Behnken design of the response surface methodology (RSM), was evaluated using the Cupric Reducing Antioxidant Capacity (CUPRAC) method. For the highest TAC, operational parameters that best suit the MAE procedure were set at 80 °C, 35 min, and 25 mL/2.0 g. The TAC values of extracts obtained by MAE using TBP:AcOH, 1:2 (mol/mol) were examined against those of extracts acquired by classical solvent extraction using a mixture of hexane, ethanol and acetone (H:E:A, 2:1:1 (v/v/v)) mixture. TAC of extracts in DES varied between 5.10 and 0.71 lycopene equivalents (mmol LYC kg -1 ). The highest extraction yield comparable to conventional organic solvents was obtained with TBP:AcOH (1:2). It was observed that, in addition to lipophilic antioxidants, some hydrophilic antioxidant compounds were partially extracted with the proposed DES. Moreover, the extracted antioxidant compounds were identified and quantified by HPLC analysis. The proposed DES and MAE process will find potential application for hydrophobic antioxidant extraction from tomatoes and carrots on an industrial scale after further studies.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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