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Recovery and Stabilization of Anthocyanins and Phenolic Antioxidants of Roselle (Hibiscus sabdariffa L.) with Hydrophilic Deep Eutectic Solvents.
Molecules. 2020 Aug 14; 25(16)M

Abstract

Deep eutectic solvents (DESs) have got huge interest as new green and sustainable solvents for the extraction of bioactive compounds from plants in recent decades. In the present study, we aimed to investigate the effectiveness of hydrophilic DES for the extraction of anthocyanin and polyphenol antioxidants from Roselle. A natural hydrophilic DES constituted of sodium acetate (hydrogen bond acceptor) and formic acid (hydrogen bond donor) designed to evaluate the total phenolic compound (TPC), total flavonoid (TFC), total anthocyanin (TACN), 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging and ferric reducing antioxidant power (FRAP) values of Roselle. Distilled water, 70% ethanol, and 80% methanol used as conventional solvents for comparison. The results indicated that the DES prepared in molarity ratio (SAFAm) was the most efficient. Subsequently, this prominent DES selected for the optimization and the optimum extraction conditions were 1:3.6 molarity ratio, 0% additional water, and 10 mL solvent. TPC, TFC, TACN, FRAP, and DPPH radical scavenging at the optimum point were 233.26 mg GAE/g, 10.14 mg ECE/g, 10.62 mg D3S/g, 493.45 mmol ISE/g, and 343.41 mmol TE/g, respectively. The stability tests showed that anthocyanins were more stable in SAFAm. These findings revealed that SAFAm is an effective green solvent for the extraction of polyphenols from various plants.

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Authors+Show Affiliations

Zannou O
Department of Food Engineering, Ondokuz Mayis University, Samsun 55139, Turkey.
Koca I
Department of Food Engineering, Ondokuz Mayis University, Samsun 55139, Turkey.
Aldawoud TMS
College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
Galanakis CM
College of Science, King Saud University, Riyadh 11451, Saudi Arabia. Research & Innovation Department, Galanakis Laboratories, 73131 Chania, Greece. Food Waste Recovery Group, ISEKI Food Association, 1190 Vienna, Austria.

MeSH

AnthocyaninsAntioxidantsDrug StabilityEthanolHibiscusMethanolPhenolsPlant Extracts

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32824080

Citation

Zannou, Oscar, et al. "Recovery and Stabilization of Anthocyanins and Phenolic Antioxidants of Roselle (Hibiscus Sabdariffa L.) With Hydrophilic Deep Eutectic Solvents." Molecules (Basel, Switzerland), vol. 25, no. 16, 2020.
Zannou O, Koca I, Aldawoud TMS, et al. Recovery and Stabilization of Anthocyanins and Phenolic Antioxidants of Roselle (Hibiscus sabdariffa L.) with Hydrophilic Deep Eutectic Solvents. Molecules. 2020;25(16).
Zannou, O., Koca, I., Aldawoud, T. M. S., & Galanakis, C. M. (2020). Recovery and Stabilization of Anthocyanins and Phenolic Antioxidants of Roselle (Hibiscus sabdariffa L.) with Hydrophilic Deep Eutectic Solvents. Molecules (Basel, Switzerland), 25(16). https://doi.org/10.3390/molecules25163715
Zannou O, et al. Recovery and Stabilization of Anthocyanins and Phenolic Antioxidants of Roselle (Hibiscus Sabdariffa L.) With Hydrophilic Deep Eutectic Solvents. Molecules. 2020 Aug 14;25(16) PubMed PMID: 32824080.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Recovery and Stabilization of Anthocyanins and Phenolic Antioxidants of Roselle (Hibiscus sabdariffa L.) with Hydrophilic Deep Eutectic Solvents. AU - Zannou,Oscar, AU - Koca,Ilkay, AU - Aldawoud,Turki M S, AU - Galanakis,Charis M, Y1 - 2020/08/14/ PY - 2020/07/24/received PY - 2020/08/12/revised PY - 2020/08/14/accepted PY - 2020/8/23/entrez PY - 2020/8/23/pubmed PY - 2021/3/4/medline KW - anthocyanin KW - antioxidant KW - deep eutectic solvent KW - green chemistry KW - response surface methodology KW - roselle JF - Molecules (Basel, Switzerland) JO - Molecules VL - 25 IS - 16 N2 - Deep eutectic solvents (DESs) have got huge interest as new green and sustainable solvents for the extraction of bioactive compounds from plants in recent decades. In the present study, we aimed to investigate the effectiveness of hydrophilic DES for the extraction of anthocyanin and polyphenol antioxidants from Roselle. A natural hydrophilic DES constituted of sodium acetate (hydrogen bond acceptor) and formic acid (hydrogen bond donor) designed to evaluate the total phenolic compound (TPC), total flavonoid (TFC), total anthocyanin (TACN), 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging and ferric reducing antioxidant power (FRAP) values of Roselle. Distilled water, 70% ethanol, and 80% methanol used as conventional solvents for comparison. The results indicated that the DES prepared in molarity ratio (SAFAm) was the most efficient. Subsequently, this prominent DES selected for the optimization and the optimum extraction conditions were 1:3.6 molarity ratio, 0% additional water, and 10 mL solvent. TPC, TFC, TACN, FRAP, and DPPH radical scavenging at the optimum point were 233.26 mg GAE/g, 10.14 mg ECE/g, 10.62 mg D3S/g, 493.45 mmol ISE/g, and 343.41 mmol TE/g, respectively. The stability tests showed that anthocyanins were more stable in SAFAm. These findings revealed that SAFAm is an effective green solvent for the extraction of polyphenols from various plants. SN - 1420-3049 UR - https://www.unboundmedicine.com/medline/citation/32824080/Recovery_and_Stabilization_of_Anthocyanins_and_Phenolic_Antioxidants_of_Roselle__Hibiscus_sabdariffa_L___with_Hydrophilic_Deep_Eutectic_Solvents_ DB - PRIME DP - Unbound Medicine ER -