Surfactant-Assisted Extraction of Bioactive Compounds from Turmeric (Curcuma longa L.)

first_page Download PDF settings Order Article Reprints Font Type: Arial Georgia Verdana Font Size: Aa Aa Aa Line Spacing:    Column Width:    Background: Open AccessAbstract Surfactant-Assisted Extraction of Bioactive Compounds from Turmeric (Curcuma longa L.) † by Ioannis MourtzinosIoannis Mourtzinos SciProfiles Scilit Preprints.org Google Scholar *, Stamatia ChristakiStamatia Christaki SciProfiles Scilit Preprints.org Google Scholar , Alkiviadis TsetsilasAlkiviadis Tsetsilas SciProfiles Scilit Preprints.org Google Scholar and Anastasia KyriakoudiAnastasia Kyriakoudi SciProfiles Scilit Preprints.org Google Scholar Laboratory of Food Chemistry and Biochemistry, Department of Food Science and Technology, School of Agriculture, Aristotle University of Thessaloniki, Thermi, 57001 Thessaloniki, Greece * Author to whom correspondence should be addressed. † Presented at the 3rd International Electronic Conference on Processes—Green and Sustainable Process Engineering and Process Systems Engineering (ECP 2024), 29–31 May 2024; Available online: https://sciforum.net/event/ECP2024. Proceedings 2024, 105(1), 9; https://doi.org/10.3390/proceedings2024105009 Published: 28 May 2024 (This article belongs to the Proceedings of The 3rd International Electronic Conference on Processes—Green and Sustainable Process Engineering and Process Systems Engineering) Download keyboard_arrow_down Download PDF Download PDF with Cover Download XML Download Epub Versions Notes Keywords: tumeric; surfactant; curcumin; curcuminoids Turmeric, the dry rhizome of Curcuma longa L., is valued for its biological properties (e.g., antioxidant, antimicrobial, anti-inflammatory properties). These are mainly attributed to a group of secondary metabolites, namely curcuminoids, the most distinctive of which is curcumin. Due to their hydrophobic nature, curcuminoids are usually isolated using organic solvents, such as hexane, acetone, methanol, etc. However, due to increasing consumer demand for organic and solvent-free products, strategies for the aqueous extraction of polyphenols have gained new attention.To this end, the aim of the present study was the optimization of curcuminoid extraction from turmeric powder using aqueous, surfactant-based mixtures, combined with ethanol, as extraction solvents. The recovery was optimized through response surface methodology (RSM) using a central composite design (CCD). Solid–liquid extractions were performed through stirring and mild heating (T ≤ 30 °C), while Polysorbate 80 (non-ionic) was used as the surfactant. The independent factors tested were the extraction duration (min), the ethanol concentration (% v/v) and the surfactant concentration in the solvent (% w/v). Total phenolic content (Folin–Ciocalteu assay), antioxidant activity (DPPH radical-scavenging activity assay) and curcumin concentration (UV-Vis standard curve 0.75–6 ppm) were determined in the extracts (responses). In optimized conditions, extractions were performed with other surfactant types (anionic, cationic, amphoteric) and pure ethanol, for comparison purposes. All the optimized extracts were further analysed with HPLC (curcumin standard curve 0.5–50 ppm) for the quantitative determination of curcumin and other curcuminoids.Based on the results, the optimized extraction conditions were determined at 59 min, 29% v/v ethanol and 5% w/v surfactant. Curcumin concentration in the extracts was affected by the surfactant type and concentration (% w/v). Surfactant-based solvents yielded higher curcuminoid content compared to ethanol. The present study highlights the potential of surfactant-based extraction of curcuminoids and their possible future applications in nutraceutical or cosmeceutical formulations. Author ContributionsConceptualization, I.M.; methodology, S.C., A.T. and I.M.; investigation, S.C., A.T. and A.K.; resources, I.M.; data curation, S.C., A.T., A.K. and I.M.; writing—original draft preparation, S.C.; writing—review and editing, I.M.; supervision, I.M. All authors have read and agreed to the published version of the manuscript.FundingThis research received no external funding.Institutional Review Board StatementNot applicable.Informed Consent StatementNot applicable.Data Availability StatementData are contained in this abstract.Conflicts of InterestThe authors declare no conflicts of interest.Disclaimer/Publisher's Note: The statements, opinions and data contained in all publications are solely those of the individual author(s) and contributor(s) and not of MDPI and/or the editor(s). MDPI and/or the editor(s) disclaim responsibility for any injury to people or property resulting from any ideas, methods, instructions or products referred to in the content. © 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Share and Cite MDPI and ACS Style Mourtzinos, I.; Christaki, S.; Tsetsilas, A.; Kyriakoudi, A. Surfactant-Assisted Extraction of Bioactive Compounds from Turmeric (Curcuma longa L.). Proceedings 2024, 105, 9. https://doi.org/10.3390/proceedings2024105009 AMA Style Mourtzinos I, Christaki S, Tsetsilas A, Kyriakoudi A. Surfactant-Assisted Extraction of Bioactive Compounds from Turmeric (Curcuma longa L.). Proceedings. 2024; 105(1):9. https://doi.org/10.3390/proceedings2024105009 Chicago/Turabian Style Mourtzinos, Ioannis, Stamatia Christaki, Alkiviadis Tsetsilas, and Anastasia Kyriakoudi. 2024. "Surfactant-Assisted Extraction of Bioactive Compounds from Turmeric (Curcuma longa L.)" Proceedings 105, no. 1: 9. https://doi.org/10.3390/proceedings2024105009 Article Metrics No No Article Access Statistics Multiple requests from the same IP address are counted as one view.