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Marchetti F, Gugel I, Costa S, Baldisserotto A, Foletto A, Gugel I, Baldini E, Manfredini S, Vertuani S. A Sustainable Approach to Valuable Polyphenol and Iridoid Antioxidants from Medicinal Plant By-Products. Antioxidants (Basel) 2024; 13:1014. [PMID: 39199258 PMCID: PMC11351505 DOI: 10.3390/antiox13081014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2024] [Revised: 08/15/2024] [Accepted: 08/18/2024] [Indexed: 09/01/2024] Open
Abstract
Supply chain waste gives rise to significant challenges in terms of disposal, making upcycling a promising and sustainable alternative for the recovery of bioactive compounds from by-products. Lignocellulosic by-products like STF231, which are derived from the medicinal plant extract industry, offer valuable compounds such as polyphenols and iridoids that can be recovered through upcycling. In an unprecedented study, we explored and compared conventional hydroethanolic extraction, ultrasound hydroethanolic extraction, and natural deep eutectic solvents-ultrasound extraction methods on STF231 to obtain extracts with antioxidant activity. The extraction profile of total polyphenols (TPCs) was measured using the Folin-Ciocalteu test and the antioxidant capacity of the extracts was tested with FRAP and DPPH assays. HPLC-UV was employed to quantify the phenolic and iridoid markers in the extracts. Additionally, the sustainability profile of the process was assessed using the green analytical procedure index (GAPI), AGREEprep, and analytical GREEnness metric approach (AGREE) frameworks. Our findings indicate that a choline chloride and lactic acid mixture at a 1:5 ratio, under optimal extraction conditions, resulted in extracts with higher TPC and similar antioxidant activity compared with conventional hydroethanolic extracts. The innovative aspect of this study lies in the potential application of sustainable upcycling protocols to a previously unexamined matrix, resulting in extracts with potential health applications.
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Affiliation(s)
- Filippo Marchetti
- Department of Life Sciences and Biotechnology, Section of Medicines and Health Products, University of Ferrara, Via Fossato di Mortara 17–19, 44121 Ferrara, Italy; (F.M.); (I.G.); (A.B.); (I.G.); (E.B.); (S.V.)
| | - Irene Gugel
- Department of Life Sciences and Biotechnology, Section of Medicines and Health Products, University of Ferrara, Via Fossato di Mortara 17–19, 44121 Ferrara, Italy; (F.M.); (I.G.); (A.B.); (I.G.); (E.B.); (S.V.)
| | - Stefania Costa
- Department of Life Sciences and Biotechnology, Section of Medicines and Health Products, University of Ferrara, Via Fossato di Mortara 17–19, 44121 Ferrara, Italy; (F.M.); (I.G.); (A.B.); (I.G.); (E.B.); (S.V.)
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy
| | - Anna Baldisserotto
- Department of Life Sciences and Biotechnology, Section of Medicines and Health Products, University of Ferrara, Via Fossato di Mortara 17–19, 44121 Ferrara, Italy; (F.M.); (I.G.); (A.B.); (I.G.); (E.B.); (S.V.)
| | | | - Ilenia Gugel
- Department of Life Sciences and Biotechnology, Section of Medicines and Health Products, University of Ferrara, Via Fossato di Mortara 17–19, 44121 Ferrara, Italy; (F.M.); (I.G.); (A.B.); (I.G.); (E.B.); (S.V.)
| | - Erika Baldini
- Department of Life Sciences and Biotechnology, Section of Medicines and Health Products, University of Ferrara, Via Fossato di Mortara 17–19, 44121 Ferrara, Italy; (F.M.); (I.G.); (A.B.); (I.G.); (E.B.); (S.V.)
| | - Stefano Manfredini
- Department of Life Sciences and Biotechnology, Section of Medicines and Health Products, University of Ferrara, Via Fossato di Mortara 17–19, 44121 Ferrara, Italy; (F.M.); (I.G.); (A.B.); (I.G.); (E.B.); (S.V.)
| | - Silvia Vertuani
- Department of Life Sciences and Biotechnology, Section of Medicines and Health Products, University of Ferrara, Via Fossato di Mortara 17–19, 44121 Ferrara, Italy; (F.M.); (I.G.); (A.B.); (I.G.); (E.B.); (S.V.)
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Zhu Y, Yang TX, Li H, Zhao QS, Zhao B. Synergism of jet milling and deep eutectic solvent pretreatment on grapevine lignin fractionation and enhancing enzymatic hydrolysis. Int J Biol Macromol 2024; 269:132144. [PMID: 38729476 DOI: 10.1016/j.ijbiomac.2024.132144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 04/08/2024] [Accepted: 05/05/2024] [Indexed: 05/12/2024]
Abstract
Herein, we investigated the synergistic effects of jet milling (JM) and deep eutectic solvent (DES) pretreatment on the fractionation of grapevine lignin and the consequent enhancement of enzymatic hydrolysis. Grapevine, a substantial byproduct of the wine industry, was subjected to JM pretreatment to produce finely powdered particles (median diameter D50 = 98.90), which were then further treated with acidic ChCl-LA and alkaline K2CO3-EG DESs. The results revealed that the combined JM + ChCl-LA pretreatment significantly increased the cellulose preservation under optimal conditions (110 °C, 4 h, and 20 % water content), achieving removal rates of 74.18 % xylan and 66.05 % lignin, respectively. The pretreatment temperature and inhibitor production were reduced, resulting in a remarkable threefold increase in glucose yield compared to untreated samples. Moreover, the structural analysis of the pretreated lignin indicated an enrichment of phenolic units, leading to enhanced antioxidant and antibacterial activities, particularly in the JM pretreated samples. These findings underscore the promising potential of the synergistic JM and DES pretreatment in facilitating the efficient utilization of grapevine lignocellulosic biomass for sustainable biorefinery technologies.
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Affiliation(s)
- Yuan Zhu
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; Key Laboratory of Biopharmaceutical Preparation and Delivery, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tian-Xiao Yang
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; Key Laboratory of Biopharmaceutical Preparation and Delivery, Chinese Academy of Sciences, Beijing 100190, China; Department of Biomedicine, Beijing City University, Beijing 100094, China
| | - Hang Li
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; Key Laboratory of Biopharmaceutical Preparation and Delivery, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qing-Sheng Zhao
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; Key Laboratory of Biopharmaceutical Preparation and Delivery, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Bing Zhao
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; Key Laboratory of Biopharmaceutical Preparation and Delivery, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Muhammad G, Xu J, Li Z, Zhao L, Zhang X. Current progress and future perspective of microalgae biomass pretreatment using deep eutectic solvents. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 924:171547. [PMID: 38458467 DOI: 10.1016/j.scitotenv.2024.171547] [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: 01/12/2024] [Revised: 02/20/2024] [Accepted: 03/04/2024] [Indexed: 03/10/2024]
Abstract
Pretreatment process is considered as the most important step for effective microalgae biomass refining and has gained more interest since last decades. However, the main obstacles to commercialize microalgae products are recalcitrant cell wall and lack of cost-effective, green, and sustainable pretreatment approaches. Till now, various microalgae pretreatment approaches have been applied prior to extraction steps to enhance the accessibility of solvent inside the cells. However, high energy consumption and the hazardousness of solvents are considerable problem for these pretreatment methods. In this regard, deep eutectic solvents are recognized as sustainable and green solvents possessing great potential for microalgae biomass processing due to their low toxicity, low cost, biodegradability, easy recycling, and reuse. This article provides the fundamentals of DES composition, synthesis, properties, and the current advances in the application of microalgae biomass process.
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Affiliation(s)
- Gul Muhammad
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; Institute of Zhejiang University-Quzhou, Quzhou 324000, China
| | - Jingliang Xu
- School of Chemical Engineering Zhengzhou, University, Zhengzhou 450001, Henan, China
| | - Zhenglong Li
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; Institute of Zhejiang University-Quzhou, Quzhou 324000, China; National Key Laboratory of Biobased Transportation Fuel Technology, Zhejiang University, Hangzhou 310058, China
| | - Ling Zhao
- College of Engineering, Shenyang Agricultural University, Shenyang 110161, China.
| | - Ximing Zhang
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; Institute of Zhejiang University-Quzhou, Quzhou 324000, China; National Key Laboratory of Biobased Transportation Fuel Technology, Zhejiang University, Hangzhou 310058, China.
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Kotland A, Thiery J, Hubert J. Chemical profiling of botanical extracts obtained in NADES systems using centrifugal partition chromatography combined with 13 C NMR dereplication-Hypericum perforatum as a case study. PHYTOCHEMICAL ANALYSIS : PCA 2024; 35:391-400. [PMID: 37886892 DOI: 10.1002/pca.3297] [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: 06/19/2023] [Revised: 09/15/2023] [Accepted: 10/03/2023] [Indexed: 10/28/2023]
Abstract
INTRODUCTION Natural deep eutectic solvents (NADES) have emerged as interesting extractants to develop botanical ingredients. They are nontoxic and biodegradable, nonflammable, easy to prepare, and able to solubilize a wide range of molecules. However, NADES extracts remain difficult to analyze because the metabolites of interest stay highly diluted in the nonvolatile viscous NADES matrix. OBJECTIVE This study presents a robust analytical workflow for the chemical profiling of NADES extracts. It is applied to Hypericum perforatum aerial parts extracted with the neutral mixture fructose/glycerol/water (3/1/1, w/w/w), and compared to the chemical profiling of a classical dry methanol extract. METHODS Exploiting polarity differences between metabolites, the H. perforatum NADES extract was partitioned in a liquid-liquid solvent system to trap the hydrophilic NADES constituents in the lower phase. The upper phase, containing a diversity of secondary metabolites from H. perforatum, was fractionated by centrifugal partition chromatography. All fractions were chemically investigated using a 13 C NMR dereplication method which involves hierarchical clustering analysis of the whole NMR dataset, a natural metabolite database for metabolite identification, and 2D NMR analyses for validation. Liquid chromatography-mass spectrometry (LC-MS) analyses were also performed to complete the identification process. RESULTS A range of 21 metabolites were unambiguously identified, including glycosylated flavonols, lactones, catechins, phenolic acids, lipids, and simple sugars, and 15 additional minor extract constituents were annotated by LC-MS based on exact mass measurements. CONCLUSION The proposed identification process is rapid and nondestructive and provides good prospects to deeply characterize botanical extracts obtained in nonvolatile and viscous NADES systems.
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Ferreira C, Sarraguça M. A Comprehensive Review on Deep Eutectic Solvents and Its Use to Extract Bioactive Compounds of Pharmaceutical Interest. Pharmaceuticals (Basel) 2024; 17:124. [PMID: 38256957 PMCID: PMC10820243 DOI: 10.3390/ph17010124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/04/2024] [Accepted: 01/16/2024] [Indexed: 01/24/2024] Open
Abstract
The extraction of bioactive compounds of pharmaceutical interest from natural sources has been significantly explored in recent decades. However, the extraction techniques used were not very efficient in terms of time and energy consumption; additionally, the solvents used for the extraction were harmful for the environment. To improve the environmental impact of the extractions and at the same time increase the extraction yields, several new extraction techniques were developed. Among the most used ones are ultrasound-assisted extraction and microwave-assisted extraction. These extraction techniques increased the yield and selectivity of the extraction in a smaller amount of time with a decrease in energy consumption. Nevertheless, a high volume of organic solvents was still used for the extraction, causing a subsequent environmental problem. Neoteric solvents appeared as green alternatives to organic solvents. Among the neoteric solvents, deep eutectic solvents were evidenced to be one of the best alternatives to organic solvents due to their intrinsic characteristics. These solvents are considered green solvents because they are made up of natural compounds such as sugars, amino acids, and carboxylic acids having low toxicity and high degradability. In addition, they are simple to prepare, with an atomic economy of 100%, with attractive physicochemical properties. Furthermore, the huge number of compounds that can be used to synthesize these solvents make them very useful in the extraction of bioactive compounds since they can be tailored to be selective towards a specific component or class of components. The main aim of this paper is to give a comprehensive review which describes the main properties, characteristics, and production methods of deep eutectic solvents as well as its application to extract from natural sources bioactive compounds with pharmaceutical interest. Additionally, an overview of the more recent and sustainable extraction techniques is also given.
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Affiliation(s)
| | - Mafalda Sarraguça
- LAQV, REQUIMTE, Department of Chemical Sciences, Laboratory of Applied Chemistry, Faculty of Pharmacy, Porto University, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal;
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Zainal-Abidin MH, Kristianto S, Esnin SN, Matmin J, Abdul Wahab R, Wan Mahmood WMA, Widodo WT. Green extraction of phenolics using deep eutectic solvents: a promising neoteric method. Nat Prod Res 2023:1-13. [PMID: 38012848 DOI: 10.1080/14786419.2023.2285872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 11/13/2023] [Indexed: 11/29/2023]
Abstract
There has been a growing emphasis on developing extraction methods that are not only efficient but also environmentally friendly and sustainable. One promising avenue is the exploration of deep eutectic solvents (DESs) as neoteric extraction media. This study aims to investigate the potential of DESs as neoteric extraction media for phenolics-rich flower clove extracts. Two DESs were synthesised by mixing choline chloride with glycerol and lactic acid at a molar ratio of 1:2. The thermal profiles of the mixture were analysed using differential scanning calorimetry, and the viscosity and density were measured at different temperatures. The phenolic compounds were quantitatively characterised for all of the extractants using high-performance liquid chromatography. The total phenolic content and the antioxidant activities of the extracts were determined. The results showed that DESs significantly improved the extraction of antioxidant compounds from clove, especially for the case of phenolic compounds, and also considerably enhanced the antioxidant activity of the extracts. The use of DESs offers a green, efficient method for extracting value-added products from natural sources.
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Affiliation(s)
| | - Sonny Kristianto
- Master in Forensic Sciences, Postgraduate School, Universitas Airlangga, 4-6 Airlangga Rd, Surabaya, Indonesia
- Human Genetic Laboratory, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
| | - Siti Nuresyanah Esnin
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia
| | - Juan Matmin
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia
| | - Roswanira Abdul Wahab
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia
| | - Wan M Asyraf Wan Mahmood
- Centre of Foundation Studies, Universiti Teknologi MARA, Cawangan Selangor, Kampus Dengkil, Dengkil, Selangor, Malaysia
| | - Wimbuh Tri Widodo
- Master in Forensic Sciences, Postgraduate School, Universitas Airlangga, 4-6 Airlangga Rd, Surabaya, Indonesia
- Human Genetic Laboratory, Institute of Tropical Disease, Universitas Airlangga, Surabaya, Indonesia
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Lai ZY, Yiin CL, Lock SSM, Chin BLF, Zauzi NSA, Sar-Ee S. A review on natural based deep eutectic solvents (NADESs): fundamentals and potential applications in removing heavy metals from soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:116878-116905. [PMID: 36917382 DOI: 10.1007/s11356-023-26288-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 03/01/2023] [Indexed: 06/18/2023]
Abstract
Natural based deep eutectic solvent (NADES) is a promising green solvent to replace the conventional soil washing solvent due to the environmental benign properties such as low toxicity, high biodegradability, high polarity or hydrophilicity, and low cost of fabrication process. The application of NADES is intensively studied in the extraction of organic compounds or natural products from vegetations or organic matters. Conversely, the use of the solvent in removing heavy metals from soil is severely lacking. This review focuses on the potential application of NADES as a soil washing agent to remove heavy metal contaminants. Hydrophilicity is an important feature of a NADES to be used as a soil washing solvent. In this context, choline chloride is often used as hydrogen bond acceptor (HBA) whereby choline chloride based NADESs showed excellent performance in the extraction of various solutes in the past studies. The nature of NADES along with its chemistry, preparation and designing methods as well as potential applications were comprehensively reviewed. Subsequently, related studies on choline chloride-based NADES in heavy metal polluted soil remediation were also reviewed. Potential applications in removing other soil contaminants as well as the limitations of NADES were discussed based on the current advancements of soil washing and future research directions were also proposed.
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Affiliation(s)
- Zhi Ying Lai
- Department of Chemical Engineering and Energy Sustainability, Faculty of Engineering, Universiti Malaysia Sarawak (UNIMAS), 94300, Kota Samarahan, Sarawak, Malaysia
| | - Chung Loong Yiin
- Department of Chemical Engineering and Energy Sustainability, Faculty of Engineering, Universiti Malaysia Sarawak (UNIMAS), 94300, Kota Samarahan, Sarawak, Malaysia.
- Institute of Sustainable and Renewable Energy (ISuRE), Universiti Malaysia Sarawak (UNIMAS), 94300, Kota Samarahan, Sarawak, Malaysia.
| | - Serene Sow Mun Lock
- CO2 Research Center (CO2RES), Department of Chemical Engineering, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Malaysia
| | - Bridgid Lai Fui Chin
- Department of Chemical and Energy Engineering, Faculty of Engineering and Science, Curtin University Malaysia, CDT 250, 98009, Miri, Sarawak, Malaysia
- Energy and Environment Research Cluster, Faculty of Engineering and Science, Curtin University Malaysia, CDT 250, 98009, Miri, Sarawak, Malaysia
| | - Nur Syuhada Ahmad Zauzi
- Department of Chemical Engineering and Energy Sustainability, Faculty of Engineering, Universiti Malaysia Sarawak (UNIMAS), 94300, Kota Samarahan, Sarawak, Malaysia
| | - Sherena Sar-Ee
- Department of Chemical Engineering and Energy Sustainability, Faculty of Engineering, Universiti Malaysia Sarawak (UNIMAS), 94300, Kota Samarahan, Sarawak, Malaysia
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Lomba L, Errazquin D, Garralaga P, López N, Giner B. Ecotoxicological study of glucose:choline chloride and sorbitol:choline chloride at different contents of water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:46427-46434. [PMID: 36717413 DOI: 10.1007/s11356-023-25538-z] [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: 07/11/2022] [Accepted: 01/20/2023] [Indexed: 06/18/2023]
Abstract
The search of new solvents is currently focused on deep eutectic solvents (DES). However, there are not many ecotoxicological studies in different biomodels of DES that allow knowing how these chemicals affect to the environment along the trophic chain. In this manuscript, two DES at different proportion of water have been prepared and characterized from the ecotoxicological point of view. These solvents are glucose:choline chloride (2:5) and sorbitol:choline chloride (3:2) at different contents of water. To carry out the ecotoxicological study, three biomodels have been used: bacteria Aliivibrio fisheri (A. fisheri), crustacean Daphnia magna (D. magna) and algae Raphidocelis subcapitata (R. subcapitata). The obtained results show that the ecotoxicity of these chemicals depends on the biomodel used and the amount of water, being toxicity values lower for chemicals with higher water content. However, it is important to highlight that the ecotoxicity for all chemicals is quite low with effective concentrations, EC50 values above 1000 mg/L in all the studied cases.
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Affiliation(s)
- Laura Lomba
- Facultad de Ciencias de la Salud, Universidad San Jorge, Campus Universitario, Autov A23 Km 299, Villanueva de Gállego, 50830, Zaragoza, Spain
| | - Diego Errazquin
- Facultad de Ciencias de la Salud, Universidad San Jorge, Campus Universitario, Autov A23 Km 299, Villanueva de Gállego, 50830, Zaragoza, Spain
| | - Pilar Garralaga
- Facultad de Ciencias de la Salud, Universidad San Jorge, Campus Universitario, Autov A23 Km 299, Villanueva de Gállego, 50830, Zaragoza, Spain
| | - Noelia López
- Facultad de Ciencias de la Salud, Universidad San Jorge, Campus Universitario, Autov A23 Km 299, Villanueva de Gállego, 50830, Zaragoza, Spain
| | - Beatriz Giner
- Facultad de Ciencias de la Salud, Universidad San Jorge, Campus Universitario, Autov A23 Km 299, Villanueva de Gállego, 50830, Zaragoza, Spain.
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Deep eutectic solvents-modified advanced functional materials for pollutant detection in food and the environment. Trends Analyt Chem 2023. [DOI: 10.1016/j.trac.2023.116923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Preparation Methods and Functional Characteristics of Regenerated Keratin-Based Biofilms. Polymers (Basel) 2022; 14:polym14214723. [DOI: 10.3390/polym14214723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 10/29/2022] [Accepted: 11/02/2022] [Indexed: 11/06/2022] Open
Abstract
The recycling, development, and application of keratin-containing waste (e.g., hair, wool, feather, and so on) provide an important means to address related environmental pollution and energy shortage issues. The extraction of keratin and the development of keratin-based functional materials are key to solving keratin-containing waste pollution. Keratin-based biofilms are gaining substantial interest due to their excellent characteristics, such as good biocompatibility, high biodegradability, appropriate adsorption, and rich renewable sources, among others. At present, keratin-based biofilms are a good option for various applications, and the development of keratin-based biofilms from keratin-containing waste is considered crucial for sustainable development. In this paper, in order to achieve clean production while maintaining the functional characteristics of natural keratin as much as possible, four important keratin extraction methods—thermal hydrolysis, ultrasonic technology, eco-friendly solvent system, and microbial decomposition—are described, and the characteristics of these four extraction methods are analysed. Next, methods for the preparation of keratin-based biofilms are introduced, including solvent casting, electrospinning, template self-assembly, freeze-drying, and soft lithography methods. Then, the functional properties and application prospects of keratin-based biofilms are discussed. Finally, future research directions related to keratin-based biofilms are proposed. Overall, it can be concluded that the high-value conversion of keratin-containing waste into regenerated keratin-based biofilms has great importance for sustainable development and is highly suggested due to their great potential for use in biomedical materials, optoelectronic devices, and metal ion detection applications. It is hoped that this paper can provide some basic information for the development and application of keratin-based biofilms.
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Wils L, Yagmur M, Phelippe M, Montigny B, Clément-Larosière B, Jacquemin J, Boudesocque-Delaye L. Alternative Solvents for the Biorefinery of Spirulina: Impact of Pretreatment on Free Fatty Acids with High Added Value. Mar Drugs 2022; 20:md20100600. [PMID: 36286424 PMCID: PMC9605531 DOI: 10.3390/md20100600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/13/2022] [Accepted: 09/21/2022] [Indexed: 11/17/2022] Open
Abstract
The growing demand for molecules of interest from microalgal biomass, such as phycobiliproteins, has led to an accumulation of unused by-products. For example, phycocyanin, obtained by the extraction of Spirulina, generated cakes rich in non-polar molecules of interest, such as free fatty acids (FFAs). These FFAs were generally considered as markers of lipidome degradation, but represented a relevant alternative to topical antibiotics, based on a biomimetic approach. In order to develop a sustainable Spirulina biorefinery scheme, different pretreatments and alternative solvents were screened to identify the best combination for the valorization of FFAs. Thus, five pre-treatments were studied including a phycocyanin extraction by-product. The following three biobased solvents were selected: ethyl acetate (EtOAc), dimethyl carbonate (DMC) and a fatty acid-based natural deep eutectic solvent (NaDES). The pigment and fatty acid profiles were established by spectroscopic and chromatographic approaches. NaDES demonstrated superior extraction capacity and selectivity compared to other biobased solvents, regardless of pretreatment. In contrast, EtOAc and DMC showed a greater diversity of FFAs, with a predominance of polyunsaturated fatty acids (PUFAs). The by-product has also been highlighted as a relevant raw material facilitating the recovery of FFAs. These results pave the way for a green biorefinery of the lipid fraction and phycobiliproteins of microalgae.
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Affiliation(s)
- Laura Wils
- EA 7502 SIMBA, Faculté de Pharmacie, Université de Tours, 31 Avenue Monge, 37200 Tours, France
| | - Mervé Yagmur
- EA 7502 SIMBA, Faculté de Pharmacie, Université de Tours, 31 Avenue Monge, 37200 Tours, France
| | - Myriam Phelippe
- Aqua Eco Culture, 7 Rue d’Armor Maroué, 22400 Lamballe, France
| | - Bénédicte Montigny
- EA 6299 PCM2E, Faculté des Sciences et Techniques, Université de Tours, Bât J, Avenue Monge, 37200 Tours, France
| | | | - Johan Jacquemin
- MSN Department Mohammed VI Polytechnic University, Lot 660, Hay Moulay Rachid, Ben Guerir 43150, Morocco
| | - Leslie Boudesocque-Delaye
- EA 7502 SIMBA, Faculté de Pharmacie, Université de Tours, 31 Avenue Monge, 37200 Tours, France
- Correspondence: ; Tel.: +33(0)2-4736-7175
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Ding M, Hou T, Niu H, Zhang N, Guan P, Hu X. Electrocatalytic oxidation of NADH at graphene-modified electrodes based on electropolymerized poly(thionine-methylene blue) films from nature deep eutectic solvents. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Chagnoleau JB, Ferreira AM, Coutinho JA, Fernandez X, Azoulay S, Papaiconomou N. Sustainable extraction of antioxidants from out-of-caliber kiwifruits. Food Chem 2022; 401:133992. [DOI: 10.1016/j.foodchem.2022.133992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 07/29/2022] [Accepted: 08/19/2022] [Indexed: 10/15/2022]
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Elderderi S, Hilali S, Wils L, Chourpa I, Soucé M, Clément-Larosière B, Elbashir AA, Byrne HJ, Munnier E, Boudesocque-Delaye L, Bonnier F. Monitoring the water content in NADES extracts from spirulina biomass by means of ATR-IR spectroscopy. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:1973-1981. [PMID: 35531873 DOI: 10.1039/d2ay00234e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Attenuated total reflectance-infrared spectroscopy (ATR-IR) coupled with partial least squares regression (PLSR) was evaluated as a rapid, label free and cost-effective tool to quantify water content in extracts obtained from spirulina wet biomass using a glucose glycerol natural deep eutectic solvent (NADES). NADESs are green, renewable and biodegradable solvents with unique properties outcompeting existing organic solvents, for instance, for plant or biomass extraction. The properties of NADESs depend critically on their water concentration, and therefore, it is essential to develop methods to monitor it, to ensure optimal extraction efficiency and experimental repeatability to achieve a better standardization of extraction protocols. First, Karl Fischer titration was performed on a set of 20 NADES extracts in order to obtain reference water concentrations. Secondly, ATR-IR spectra were collected and subjected to datamining to construct PLSR predictive models. An R2 value of 0.9996, a mean root mean square error of cross validation of 0.136% w/w and a root mean square error of prediction of 0.130% w/w highlight the feasibility and reliability to perform quantitative analysis using ATR-IR. Moreover, the mean relative error percentage achieved, ∼0.5%, confirms the high accuracy of water concentration determination in NADES extracts. This work demonstrates that powerful alternatives are available to provide more environmentally responsible analytical protocols. ATR-IR spectroscopy applied to NADES extracts does not require any sample preparation, reagents or solvents and has minimal requirements for single use consumables. The technique is consistent with current concerns to develop greener chemistry, especially in the field of extraction of natural compounds from plants which currently represents a major focus of interest in both research and industry.
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Affiliation(s)
- Suha Elderderi
- Université de Tours, Faculté de pharmacie, EA 6295 Nanomédicaments et Nanosondes, 31 Avenue Monge, Tours 37200, France.
- University of Gezira, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, P.O. Box 20, Wad Madani 21111, Sudan
| | - Soukaina Hilali
- Université de Tours, EA 7502 Synthèse et Isolement de Molécules BioActives (SIMBA), 31 Avenue Monge, Tours 37200, France
| | - Laura Wils
- Université de Tours, EA 7502 Synthèse et Isolement de Molécules BioActives (SIMBA), 31 Avenue Monge, Tours 37200, France
| | - Igor Chourpa
- Université de Tours, Faculté de pharmacie, EA 6295 Nanomédicaments et Nanosondes, 31 Avenue Monge, Tours 37200, France.
| | - Martin Soucé
- Université de Tours, Faculté de pharmacie, EA 6295 Nanomédicaments et Nanosondes, 31 Avenue Monge, Tours 37200, France.
| | | | - Abdalla A Elbashir
- King Faisal University, College of Science, Department of Chemistry, P.O. Box 400, Al-Ahsa 31982, Saudi Arabia
- University of Khartoum, Faculty of Science, Department of Chemistry, P.O. Box 321, Khartoum 11115, Sudan
| | - Hugh J Byrne
- FOCAS Research Institute, TU Dublin, City Campus, Camden Row, Dublin 8, Ireland
| | - Emilie Munnier
- Université de Tours, EA 7502 Synthèse et Isolement de Molécules BioActives (SIMBA), 31 Avenue Monge, Tours 37200, France
| | - Leslie Boudesocque-Delaye
- Université de Tours, EA 7502 Synthèse et Isolement de Molécules BioActives (SIMBA), 31 Avenue Monge, Tours 37200, France
| | - Franck Bonnier
- Université de Tours, Faculté de pharmacie, EA 6295 Nanomédicaments et Nanosondes, 31 Avenue Monge, Tours 37200, France.
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Afonso AC, Sousa M, Simões LC, Simões M. Phytochemicals Against Drug-Resistant Bacterial Biofilms and Use of Green Extraction Solvents to Increase Their Bioactivity. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022. [DOI: 10.1007/5584_2022_723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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