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André Miguel da Costa Lopes received both B.Sc. (2010) and M.Sc. (2012) degrees in Biotechnology from the University of Aveiro, Portugal. Since December 2017, he holds a PhD degree in Sustainable Chemistry from New University of Lisbon. His PhD thesis covered the application of ionic liquids in the valorization of agriculture and industrial wastes. In 2018 he had returned to University of Aveiro as postdoctoral researcher associated to CICECO-Aveiro Institute of Materials and was involved in the BBI project PROVIDES - PROcesses for Value added fibres by Innovative Deep Eutectic Solvents. In 2020, he got a researcher position at CICECO in collaboration with the Collaborative Laboratory Towards Circular Economy (CECOLAB). He is specialized in the development of green and sustainable technologies for the valorization of lignocellulosic biomass using alternative solvents (e.g. ionic liquids, deep eutectic solvents, supercritical CO2, among others) towards the integration in biorefineries. He is co-author of 24 peer-review papers published in leading international journals, in which one of his publications (Green Chem, 2017, 19, 4200-4233) was highlighted in annual collection Green Chemistry Hot Articles (2017). His work has been highly cited (>1200) with h-index = 13 (Scopus database). He is also the co-author of 3 book chapters, 2 conference proceedings and he is an inventor of 3 Portuguese patents (PT106743-B, PT106947-B and 108402-A) and 1 other filled patent.
Lignin stands as a promising raw material to produce commodities and specialty chemicals, yet its poor solubility remains a big challenge. Recently, deep eutectic solvents (DES) have been proposed as sustainable solvents with high potential to dissolve and valorize lignin. In the present study, the ability of DES based on cholinium chloride ([Ch]Cl) combined with alcohols and carboxylic acids as hydrogen bond donors (HBDs) to dissolve kraft lignin and to change its chemical structure was examined. The influence of the chemical nature of HBDs, water content, and HBD:hydrogen bond acceptor (HBA) molar ratio on the solubility of kraft lignin in DES was studied (313.15 K). The kraft lignin solubility was enhanced by increasing both the HBD’s carbon chain length and the molar ratio, with [Ch]Cl:HEXA (1,6-hexanediol) and [Ch]Cl:MaleA (maleic acid) being the best studied solvents for kraft lignin dissolution, while the addition of water was a negative factor. The thermal treatments (393.15 K) of kraft lignin show that carboxylic acid-based DES promote chemical modifications to kraft lignin, including the disruption of several C–O covalent type bonds (e.g., β-O-4, α-O-4 and α-O-α), while alcohol-based DES were found to be nonderivatizing solvents maintaining the lignin chemical structure. These results show the versatility of DES, which, depending on their chemical nature, may offer distinct strategies for lignin valorization.
Filipe H. B. Sosa; Dinis O. Abranches; André M. Da Costa Lopes; João A. P. Coutinho; Mariana C. Da Costa. Kraft Lignin Solubility and Its Chemical Modification in Deep Eutectic Solvents. ACS Sustainable Chemistry & Engineering 2020, 8, 18577 -18589.
AMA StyleFilipe H. B. Sosa, Dinis O. Abranches, André M. Da Costa Lopes, João A. P. Coutinho, Mariana C. Da Costa. Kraft Lignin Solubility and Its Chemical Modification in Deep Eutectic Solvents. ACS Sustainable Chemistry & Engineering. 2020; 8 (50):18577-18589.
Chicago/Turabian StyleFilipe H. B. Sosa; Dinis O. Abranches; André M. Da Costa Lopes; João A. P. Coutinho; Mariana C. Da Costa. 2020. "Kraft Lignin Solubility and Its Chemical Modification in Deep Eutectic Solvents." ACS Sustainable Chemistry & Engineering 8, no. 50: 18577-18589.
The development of a sustainable wood fractionation has been a goal for the pulp and paper industries to develop a bioeconomy. The use of green solvents, in particular deep eutectic solvents (DES) has been explored to accomplish such goal. This work unveils the potential of DES aqueous solutions (at 50 wt% water content) as green solvents for the Eucalyptus globulus Labill. wood delignification. Aqueous solutions of propionic acid:urea - PA:U (2:1), urea:choline chloride - U:Ch[Cl] (2:1), lactic acid:choline chloride - LA:Ch[Cl] (10:1) and p-toluenesulfonic acid:choline chloride - PTSA:Ch[Cl] (1:1) were investigated. The delignification process was assisted by the addition of mineral (H2SO4 and HCl) or organic (PTSA) acids to efficiently promote wood matrix disruption and further lignin extraction. This process enabled solid pulp and lignin as separated fractions, which were characterized by analytical, optical and spectrometric methods. The influence of each DES on the morphology of cellulose fibers in solid pulp and the chemical structure of isolated lignin fractions was evaluated. The best system allowing delignification while preserving the cellulose fibers (comparable to Kraft cellulose pulp) and lignin structure was PA:U (2:1) aqueous solution with 25 wt% PTSA. A mild wood delignification process (363.15 K for 8 h) using this DES allowed to obtain a cellulose pulp yielding 59.50 ± 0.51 wt% of the initial wood mass and containing only 3.86 ± 0.10 wt% residual Klason lignin content. This innovative approach led to 80.64 wt% lignin extraction from E. globulus wood at mild conditions showing its potential for industrial application. Furthermore, 40.73 wt% of the initial lignin was recovered from DES liquor by a simple precipitation with water.
Belinda Soares; André M. Da Costa Lopes; Armando J.D. Silvestre; Paula C. Rodrigues Pinto; Carmen S.R. Freire; João A.P. Coutinho. Wood delignification with aqueous solutions of deep eutectic solvents. Industrial Crops and Products 2020, 160, 113128 .
AMA StyleBelinda Soares, André M. Da Costa Lopes, Armando J.D. Silvestre, Paula C. Rodrigues Pinto, Carmen S.R. Freire, João A.P. Coutinho. Wood delignification with aqueous solutions of deep eutectic solvents. Industrial Crops and Products. 2020; 160 ():113128.
Chicago/Turabian StyleBelinda Soares; André M. Da Costa Lopes; Armando J.D. Silvestre; Paula C. Rodrigues Pinto; Carmen S.R. Freire; João A.P. Coutinho. 2020. "Wood delignification with aqueous solutions of deep eutectic solvents." Industrial Crops and Products 160, no. : 113128.
A deep analysis upon the chemical modifications of the cellulose and hemicelluloses fractions that take place during biomass delignification with deep eutectic solvents (DES) is lacking in literature, being this a critical issue given the continued research on DES for this purpose. This work intends to fill this gap by disclosing a comprehensive study on the chemical modifications of cellulose (microcrystalline cellulose and bleached kraft pulp) and hemicelluloses (xylans) during thermal treatment (130 °C) with cholinium chloride:lactic acid ([Ch]Cl:LA) at molar ratio 1:10, one of the best reported DES for biomass delignification. The obtained data revealed that [Ch]Cl:LA (1:10) has a negative impact on the polysaccharides fractions at prolonged treatments (>4 h), resulting on substantial modifications including the esterification of cellulose with lactic acid, shortening of fibers length, fibers agglomeration and side reactions of the hemicelluloses fraction ( e.g. humin formation, lactic acid grafting). Wood delignification trials with [Ch]Cl:LA (1:10) at the same conditions also corroborate these findings. Moreover, the DES suffers degradation, including the formation of lactic acid derivatives and its polymerization. Therefore, short time delignification treatments are strongly recommended when using the [Ch]Cl:LA DES, so that a sustainable fractionation of biomass into high quality cellulose fibers, isolated lignin, and xylose/furfural co‐production along with solvent recyclability could be achieved.
Eduarda S. Morais; André Miguel Da Costa Lopes; Mara G. Freire; Carmen S. R. Freire; Armando J. D. Silvestre. Unveiling Modifications of Biomass Polysaccharides during Thermal Treatment in Cholinium Chloride : Lactic Acid Deep Eutectic Solvent. ChemSusChem 2020, 14, 686 -698.
AMA StyleEduarda S. Morais, André Miguel Da Costa Lopes, Mara G. Freire, Carmen S. R. Freire, Armando J. D. Silvestre. Unveiling Modifications of Biomass Polysaccharides during Thermal Treatment in Cholinium Chloride : Lactic Acid Deep Eutectic Solvent. ChemSusChem. 2020; 14 (2):686-698.
Chicago/Turabian StyleEduarda S. Morais; André Miguel Da Costa Lopes; Mara G. Freire; Carmen S. R. Freire; Armando J. D. Silvestre. 2020. "Unveiling Modifications of Biomass Polysaccharides during Thermal Treatment in Cholinium Chloride : Lactic Acid Deep Eutectic Solvent." ChemSusChem 14, no. 2: 686-698.
In this study, the potential of alkanolammonium-based Protic Ionic Liquids (PILs) aqueous solutions as solvents of Kraft lignin was evaluated. The results showed that the PILs’ anion has a key role in lignin dissolution, while the cation plays a secondary role. The presence of extra hydroxyl groups in the anion structure negatively affects the lignin solubility, while the increase of the cation alkyl chain favors this process. Using mechanical agitation all tested PILs required 8 h to reach saturation, excepting for lactate-based PILs (at least 24 h). The efficiency of lignin dissolution was improved with ultrasounds achieving saturation in less than 4 hours. Finally, the recyclability of two PILs was herein demonstrated for at least 3 cycles. The tris(2-hydroxyethyl)ammonium lactate (THEAL) presented the best ability to dissolve Kraft lignin (> 47 wt%) among the tested PILs. This result shows the capacity of PILs as excellent media to dissolve lignin.
Rafael Macedo Dias; Livia Chagas Gomes Petrin; Filipe Hobi Bordon Sosa; André M. Da Costa Lopes; Joao Coutinho; Mariana Conceição Costa. An investigation of Kraft lignin solubility in Protic Ionic Liquids and their aqueous solutions. Industrial & Engineering Chemistry Research 2020, 59, 1 .
AMA StyleRafael Macedo Dias, Livia Chagas Gomes Petrin, Filipe Hobi Bordon Sosa, André M. Da Costa Lopes, Joao Coutinho, Mariana Conceição Costa. An investigation of Kraft lignin solubility in Protic Ionic Liquids and their aqueous solutions. Industrial & Engineering Chemistry Research. 2020; 59 (40):1.
Chicago/Turabian StyleRafael Macedo Dias; Livia Chagas Gomes Petrin; Filipe Hobi Bordon Sosa; André M. Da Costa Lopes; Joao Coutinho; Mariana Conceição Costa. 2020. "An investigation of Kraft lignin solubility in Protic Ionic Liquids and their aqueous solutions." Industrial & Engineering Chemistry Research 59, no. 40: 1.
A shift to a bioeconomy development model has been evolving, conducting the scientific community to investigate new ways of producing chemicals, materials and fuels from renewable resources, i.e., biomass. Specifically, technologies that provide high performance and maximal use of biomass feedstocks into commodities with reduced environmental impact have been highly pursued. A key example comprises the extraction and/or dissolution of polysaccharides, one of the most abundant fractions of biomass, which still need to be improved regarding these processes’ efficiency and selectivity parameters. In this context, the use of alternative solvents and the application of less energy-intensive processes in the extraction of polysaccharides might play an important role to reach higher efficiency and sustainability in biomass valorization. This review debates the latest achievements in sustainable processes for the extraction of polysaccharides from a myriad of biomass resources, including lignocellulosic materials and food residues. Particularly, the ability of ionic liquids (ILs) and deep eutectic solvents (DESs) to dissolve and extract the most abundant polysaccharides from natural sources, namely cellulose, chitin, starch, hemicelluloses and pectins, is scrutinized and the efficiencies between solvents are compared. The interaction mechanisms between solvent and polysaccharide are described, paving the way for the design of selective extraction processes. A detailed discussion of the work developed for each polysaccharide as well as the innovation degree and the development stage of dissolution and extraction technologies is presented. Their advantages and disadvantages are also identified, and possible synergies by integrating microwave- and ultrasound-assisted extraction (MAE and UAE) or a combination of both (UMAE) are briefly described. Overall, this review provides key information towards the design of more efficient, selective and sustainable extraction and dissolution processes of polysaccharides from biomass.
Eduarda S. Morais; André M. Da Costa Lopes; Mara G. Freire; Carmen S. R. Freire; João A. P. Coutinho; Armando J. D. Silvestre. Use of Ionic Liquids and Deep Eutectic Solvents in Polysaccharides Dissolution and Extraction Processes towards Sustainable Biomass Valorization. Molecules 2020, 25, 3652 .
AMA StyleEduarda S. Morais, André M. Da Costa Lopes, Mara G. Freire, Carmen S. R. Freire, João A. P. Coutinho, Armando J. D. Silvestre. Use of Ionic Liquids and Deep Eutectic Solvents in Polysaccharides Dissolution and Extraction Processes towards Sustainable Biomass Valorization. Molecules. 2020; 25 (16):3652.
Chicago/Turabian StyleEduarda S. Morais; André M. Da Costa Lopes; Mara G. Freire; Carmen S. R. Freire; João A. P. Coutinho; Armando J. D. Silvestre. 2020. "Use of Ionic Liquids and Deep Eutectic Solvents in Polysaccharides Dissolution and Extraction Processes towards Sustainable Biomass Valorization." Molecules 25, no. 16: 3652.
The application of eutectic solvents (ESs) in lignocellulosic biomass fractionation has been demonstrated as a promising approach to accomplish efficient and environmentally friendly biomass valorization. In general, ESs are a combination of two components, a hydrogen-bonding donor and a hydrogen-bonding acceptor, in which the melting point of the mixture is lower than that of the individual components. However, there are plenty of possible combinations to form ESs with the potential to apply in biomass processing. Therefore, the development of fast and effective screening methods to find combinations capable to dissolve the main biomass components—namely cellulose, hemicelluloses, and lignin—is highly required. An accurate and simple technique based on optical microscopy with or without polarized lenses was used in this study to quickly screen and monitor the dissolution of cellulose, xylose (a monomer of hemicelluloses), and lignin in several ESs. The dissolution of these solutes were investigated in different choline-chloride-based ESs (ChCl:UREA, ChCl:PROP, ChCl:EtGLY, ChCl:OXA, ChCl:GLY, ChCl:LAC). Small amounts of solute and solvent with temperature control were applied and the dissolution process was monitored in real time. The results obtained in this study showed that cellulose was insoluble in these ESs, while lignin and xylose were progressively dissolved.
Filipe H. B. Sosa; Rafael Macedo Dias; André M. Da Costa Lopes; João A. P. Coutinho; Mariana C. Da Costa. Fast and Efficient Method to Evaluate the Potential of Eutectic Solvents to Dissolve Lignocellulosic Components. Sustainability 2020, 12, 3358 .
AMA StyleFilipe H. B. Sosa, Rafael Macedo Dias, André M. Da Costa Lopes, João A. P. Coutinho, Mariana C. Da Costa. Fast and Efficient Method to Evaluate the Potential of Eutectic Solvents to Dissolve Lignocellulosic Components. Sustainability. 2020; 12 (8):3358.
Chicago/Turabian StyleFilipe H. B. Sosa; Rafael Macedo Dias; André M. Da Costa Lopes; João A. P. Coutinho; Mariana C. Da Costa. 2020. "Fast and Efficient Method to Evaluate the Potential of Eutectic Solvents to Dissolve Lignocellulosic Components." Sustainability 12, no. 8: 3358.
The potentiality of acidic deep eutectic solvents for β-O-4 ether bond cleavage is herein demonstrated from a mechanistic point of view.
André M. Da Costa Lopes; José R. B. Gomes; João A. P. Coutinho; Armando J. D. Silvestre. Novel insights into biomass delignification with acidic deep eutectic solvents: a mechanistic study of β-O-4 ether bond cleavage and the role of the halide counterion in the catalytic performance. Green Chemistry 2020, 22, 2474 -2487.
AMA StyleAndré M. Da Costa Lopes, José R. B. Gomes, João A. P. Coutinho, Armando J. D. Silvestre. Novel insights into biomass delignification with acidic deep eutectic solvents: a mechanistic study of β-O-4 ether bond cleavage and the role of the halide counterion in the catalytic performance. Green Chemistry. 2020; 22 (8):2474-2487.
Chicago/Turabian StyleAndré M. Da Costa Lopes; José R. B. Gomes; João A. P. Coutinho; Armando J. D. Silvestre. 2020. "Novel insights into biomass delignification with acidic deep eutectic solvents: a mechanistic study of β-O-4 ether bond cleavage and the role of the halide counterion in the catalytic performance." Green Chemistry 22, no. 8: 2474-2487.
The present study scrutinized in depth the ability of alkanolammonium-based Protic Ionic Liquids (PILs) with carboxylate anions to dissolve Kraft lignin at 323.15 K. A focus was put on understanding the role of both PIL ions and water on the dissolution process. The results demonstrated that the anion plays a more important role in lignin dissolution than the cation. Furthermore, lignin dissolution was favored by increasing the alkyl chain of the carboxylate anion, while a smaller cation with lower number of hydroxyalkyl groups performed better. Among the studied solvents, the 2-hydroxyethylammonium hexanoate (HEAH) displayed the highest lignin solubility (37 wt%). In general, the addition of water had a negative influence on lignin solubility with the tested PILs. A sharp decrease in lignin solubility curves of 2-hydroxyethylammonium formate (HEAF) and acetate (HEAA) was observed, while a more softly effect was observed for 2-hydroxyethylammonium propionate (HEAP) and HEAH with the addition of water. However, a distinct behavior was observed for 2-hydroxyethylammonium octanoate (HEAO) that acted as hydrotrope enhancing lignin solubility in aqueous solutions to a maximum value at 40 wt% water content. Furthermore, by increasing the temperature, the lignin solubility was favored due to endothermic behavior of lignin dissolution process. The dissolution of Kraft lignin was also performed at 393.15 K to unravel any lignin modification unleashed by PILs. GPC, FTIR-ATR and 2D NMR were employed for lignin characterization and the changes observed between native lignin and recovered lignin samples were negligible demonstrating the non-derivatizing character of the PILs. Moreover, the recycle of 2-hydroxyethylammonium propionate (HEAP) was successfully demonstrated for at least 3 cycles. In this way, PILs are herein revealed as promising solvents to apply in lignin valorization towards more efficient and eco-friendly processes.
Rafael Macedo Dias; André M. Da Costa Lopes; Armando J.D. Silvestre; Joao Coutinho; Mariana C. da Costa. Uncovering the potentialities of protic ionic liquids based on alkanolammonium and carboxylate ions and their aqueous solutions as non-derivatizing solvents of Kraft lignin. Industrial Crops and Products 2019, 143, 111866 .
AMA StyleRafael Macedo Dias, André M. Da Costa Lopes, Armando J.D. Silvestre, Joao Coutinho, Mariana C. da Costa. Uncovering the potentialities of protic ionic liquids based on alkanolammonium and carboxylate ions and their aqueous solutions as non-derivatizing solvents of Kraft lignin. Industrial Crops and Products. 2019; 143 ():111866.
Chicago/Turabian StyleRafael Macedo Dias; André M. Da Costa Lopes; Armando J.D. Silvestre; Joao Coutinho; Mariana C. da Costa. 2019. "Uncovering the potentialities of protic ionic liquids based on alkanolammonium and carboxylate ions and their aqueous solutions as non-derivatizing solvents of Kraft lignin." Industrial Crops and Products 143, no. : 111866.
An acidic ionic liquid offers an exciting window to directly produce hemicellulose pentoses and to valorise cellulose and lignin.
André M. Da Costa Lopes; Roberto Manoel Gonçalves Lins; Ricardo A. Rebelo; Rafal Marcin Lukasik. Biorefinery approach for lignocellulosic biomass valorisation with an acidic ionic liquid. Green Chemistry 2018, 20, 4043 -4057.
AMA StyleAndré M. Da Costa Lopes, Roberto Manoel Gonçalves Lins, Ricardo A. Rebelo, Rafal Marcin Lukasik. Biorefinery approach for lignocellulosic biomass valorisation with an acidic ionic liquid. Green Chemistry. 2018; 20 (17):4043-4057.
Chicago/Turabian StyleAndré M. Da Costa Lopes; Roberto Manoel Gonçalves Lins; Ricardo A. Rebelo; Rafal Marcin Lukasik. 2018. "Biorefinery approach for lignocellulosic biomass valorisation with an acidic ionic liquid." Green Chemistry 20, no. 17: 4043-4057.
Biomass processing with ionic liquids (ILs) is one of the most topical research areas in the recent years. However, separation and recovery of biomass products and ILs are currently a challenge. The recovery of produced monosaccharides from IL post-reaction solution and a possibility to reuse of ILs is strongly required to guarantee the sustainability of the biomass processing. The present study demonstrates a novel approach aiming at the separation of a biomass hemicellulose-derived product, namely xylose and 1-ethyl-3-methylimidazolium hydrogensulphate. A high polarity of a post-reaction system composed of xylose, IL and water is one of the major hindrances in the separation performance. A proposed solution is a fine-tuning of system polarity by addition of a moderate-polarity acetonitrile. To scrutinise the potential of xylose and IL separation, a phase equilibria of a system constituted by [emim][HSO4], water and acetonitrile was studied. Additionally, preparative chromatography experiments with alumina as a stationary phase were performed to determine the conditions required for efficient separation of sugar and IL by selective adsorption of xylose on alumina in detriment of IL. The amount and treatment of stationary phase, eluent polarity and amount of loaded sample were scrutinised in this study too. The treatment of alumina was considered as a step necessary to achieve 90.8 wt.% and 98.1 wt.% of IL and xylose recovery yields, as separate fractions.
Andre M. Da Costa Lopes; Rafal M. Łukasik. Separation and Recovery of a Hemicellulose-Derived Sugar Produced from the Hydrolysis of Biomass by an Acidic Ionic Liquid. ChemSusChem 2018, 11, 1099 -1107.
AMA StyleAndre M. Da Costa Lopes, Rafal M. Łukasik. Separation and Recovery of a Hemicellulose-Derived Sugar Produced from the Hydrolysis of Biomass by an Acidic Ionic Liquid. ChemSusChem. 2018; 11 (6):1099-1107.
Chicago/Turabian StyleAndre M. Da Costa Lopes; Rafal M. Łukasik. 2018. "Separation and Recovery of a Hemicellulose-Derived Sugar Produced from the Hydrolysis of Biomass by an Acidic Ionic Liquid." ChemSusChem 11, no. 6: 1099-1107.
We provide a critical review of green processes enabling the fractionation and/or depolymerization of lignin towards value-added products.
S. Gillet; M. Aguedo; L. Petitjean; A. R. C. Morais; A. M. Da Costa Lopes; R. M. Łukasik; P. T. Anastas. Lignin transformations for high value applications: towards targeted modifications using green chemistry. Green Chemistry 2017, 19, 4200 -4233.
AMA StyleS. Gillet, M. Aguedo, L. Petitjean, A. R. C. Morais, A. M. Da Costa Lopes, R. M. Łukasik, P. T. Anastas. Lignin transformations for high value applications: towards targeted modifications using green chemistry. Green Chemistry. 2017; 19 (18):4200-4233.
Chicago/Turabian StyleS. Gillet; M. Aguedo; L. Petitjean; A. R. C. Morais; A. M. Da Costa Lopes; R. M. Łukasik; P. T. Anastas. 2017. "Lignin transformations for high value applications: towards targeted modifications using green chemistry." Green Chemistry 19, no. 18: 4200-4233.
Furfural has been identified as one of the most important biomass-based platform chemicals and has the potential to be used as a substitute of petrochemical-derived building blocks in the production of chemicals and advanced biofuels. Despite that the current industrial production technology of furfural is well established, it is characterised by moderate production yield and selectivity which reduces its competitiveness with crude oil-based alternatives. Furthermore, conventional furfural production requires high energy and generates acidic waste streams. Thus, research on more economic and environmentally benign furfural production strategies from hemicellulose biomass and pentose sugar feedstocks has become of worldwide interest in the scientific community and chemical industry. The present chapter aims to provide state-of-the-art developments in the field of catalytic synthesis of furfural from C5-sugars and hemicellulose biomass, taking into the consideration of green chemistry principles. Among the many advances, the employment of homogeneous catalysts i.e. metal halides, ionic liquids and high-pressure CO2 is presented. Application of heterogeneous catalysts is addressed briefly. The performance and efficiency of each catalytic approach in terms of catalyst reactivity, furfural yield and selectivity, as well as the sustainability of furfural production are analysed. Finally, critical outlook and perspectives of the development of sustainable furfural production processes are provided.
Andre M. Da Costa Lopes; Ana Rita C. Morais; Rafał M. Łukasik. Sustainable Catalytic Strategies for C5-Sugars and Biomass Hemicellulose Conversion Towards Furfural Production. Production of Platform Chemicals from Sustainable Resources 2017, 45 -80.
AMA StyleAndre M. Da Costa Lopes, Ana Rita C. Morais, Rafał M. Łukasik. Sustainable Catalytic Strategies for C5-Sugars and Biomass Hemicellulose Conversion Towards Furfural Production. Production of Platform Chemicals from Sustainable Resources. 2017; ():45-80.
Chicago/Turabian StyleAndre M. Da Costa Lopes; Ana Rita C. Morais; Rafał M. Łukasik. 2017. "Sustainable Catalytic Strategies for C5-Sugars and Biomass Hemicellulose Conversion Towards Furfural Production." Production of Platform Chemicals from Sustainable Resources , no. : 45-80.
Aqueous biphasic systems (ABS) composed of ionic liquids (ILs) and carbohydrates are an environmentally friendly and promising technology for separation and purification purposes. This chapter discloses the key parameters and mechanisms involved in the formation of this type of ABS. Phase diagrams and the factors affecting ABS formation, such as type of IL cation and anion, nature of the carbohydrate involved, temperature dependence and physicochemical properties, namely, density and viscosity of each phase, are presented and discussed in detail. Some particular applications of carbohydrate-based ABS are already reported in the literature. These comprise the removal of phenol from wastewaters and the extraction of specific value-added biomolecules. This technology is of particular relevance for the extraction of highly hydrophobic compounds, such as β-carotene. Nevertheless, the robustness and further acceptance of IL-carbohydrate-based ABS as a separation technology is largely dependent on an efficient recovery of the value-added compounds and further IL recovery and reuse.
André M. Da Costa Lopes; Rafał Bogel-Łukasik. ABS Constituted by Ionic Liquids and Carbohydrates. Green Chemistry and Sustainable Technology 2016, 37 -60.
AMA StyleAndré M. Da Costa Lopes, Rafał Bogel-Łukasik. ABS Constituted by Ionic Liquids and Carbohydrates. Green Chemistry and Sustainable Technology. 2016; ():37-60.
Chicago/Turabian StyleAndré M. Da Costa Lopes; Rafał Bogel-Łukasik. 2016. "ABS Constituted by Ionic Liquids and Carbohydrates." Green Chemistry and Sustainable Technology , no. : 37-60.
The enormous quantity of food wastes discarded annually forces a look into alternatives for this interesting feedstock.
Mehrdad Arshadi; Thomas M. Attard; Rafal M. Lukasik; Mladen Brncic; André M. Da Costa Lopes; Michael Finell; Paul Geladi; Lia Noemi Gerschenson; Fahrettin Gogus; Miguel Herrero; Andrew J. Hunt; Elena Ibáñez; Birgit Kamm; Inmaculada Mateos-Aparicio; Ana Matias; Nikolaos E. Mavroudis; Enzo Montoneri; Ana Rita C. Morais; Calle Nilsson; Emmanouil H. Papaioannou; Aurore Richel; Pilar Rupérez; Biljana Skrbic; Marija Bodroža Solarov; Jaroslava Švarc-Gajić; Keith W. Waldron; F. J. Yuste-Córdoba. Pre-treatment and extraction techniques for recovery of added value compounds from wastes throughout the agri-food chain. Green Chemistry 2016, 18, 6160 -6204.
AMA StyleMehrdad Arshadi, Thomas M. Attard, Rafal M. Lukasik, Mladen Brncic, André M. Da Costa Lopes, Michael Finell, Paul Geladi, Lia Noemi Gerschenson, Fahrettin Gogus, Miguel Herrero, Andrew J. Hunt, Elena Ibáñez, Birgit Kamm, Inmaculada Mateos-Aparicio, Ana Matias, Nikolaos E. Mavroudis, Enzo Montoneri, Ana Rita C. Morais, Calle Nilsson, Emmanouil H. Papaioannou, Aurore Richel, Pilar Rupérez, Biljana Skrbic, Marija Bodroža Solarov, Jaroslava Švarc-Gajić, Keith W. Waldron, F. J. Yuste-Córdoba. Pre-treatment and extraction techniques for recovery of added value compounds from wastes throughout the agri-food chain. Green Chemistry. 2016; 18 (23):6160-6204.
Chicago/Turabian StyleMehrdad Arshadi; Thomas M. Attard; Rafal M. Lukasik; Mladen Brncic; André M. Da Costa Lopes; Michael Finell; Paul Geladi; Lia Noemi Gerschenson; Fahrettin Gogus; Miguel Herrero; Andrew J. Hunt; Elena Ibáñez; Birgit Kamm; Inmaculada Mateos-Aparicio; Ana Matias; Nikolaos E. Mavroudis; Enzo Montoneri; Ana Rita C. Morais; Calle Nilsson; Emmanouil H. Papaioannou; Aurore Richel; Pilar Rupérez; Biljana Skrbic; Marija Bodroža Solarov; Jaroslava Švarc-Gajić; Keith W. Waldron; F. J. Yuste-Córdoba. 2016. "Pre-treatment and extraction techniques for recovery of added value compounds from wastes throughout the agri-food chain." Green Chemistry 18, no. 23: 6160-6204.
A sustainable process of valorization of lignocellulosic biomass exploring the extraction and separation of high value phenolic compounds was developed. A scale-up pretreatment and fractionation process of biomass assisted by 1-ethyl-3-methylimidazolium acetate ([emim][OAc]) ionic liquid (IL) was carried out at first. Thereafter, recovered IL formed a sample rich in phenolic compounds, which separation and purification was the main objective of the present work. The phenolic extraction from the recycled IL was studied employing adsorption methodology with specific polymeric resins. Amberlite XAD-7 and Silica C18 resins showed the highest extraction efficiency of phenolic compounds, while PVPP presented high selectivity toward tricin and a specific lignin fragment. Among the examined resins, Amberlite XAD-7 demonstrated the highest ratio of phenolic compounds extraction in comparison to IL. A residual quantity of IL was observed to remain in the extracted samples and this was overcome by applying supercritical CO2 extraction approach. Proposed methodology allowed to produce high purity main biomass fractions with IL-free extract of phenolic compounds in a green and more sustainable fashion with IL and CO2 processes employed.
André M. Da Costa Lopes; Miriam Brenner; Pedro Fale; Maria Luisa De Bivar Weinholtz Roseiro; Rafał Bogel-Łukasik. Extraction and Purification of Phenolic Compounds from Lignocellulosic Biomass Assisted by Ionic Liquid, Polymeric Resins, and Supercritical CO2. ACS Sustainable Chemistry & Engineering 2016, 4, 3357 -3367.
AMA StyleAndré M. Da Costa Lopes, Miriam Brenner, Pedro Fale, Maria Luisa De Bivar Weinholtz Roseiro, Rafał Bogel-Łukasik. Extraction and Purification of Phenolic Compounds from Lignocellulosic Biomass Assisted by Ionic Liquid, Polymeric Resins, and Supercritical CO2. ACS Sustainable Chemistry & Engineering. 2016; 4 (6):3357-3367.
Chicago/Turabian StyleAndré M. Da Costa Lopes; Miriam Brenner; Pedro Fale; Maria Luisa De Bivar Weinholtz Roseiro; Rafał Bogel-Łukasik. 2016. "Extraction and Purification of Phenolic Compounds from Lignocellulosic Biomass Assisted by Ionic Liquid, Polymeric Resins, and Supercritical CO2." ACS Sustainable Chemistry & Engineering 4, no. 6: 3357-3367.
Susana Peleteiro; Andre M. Da Costa Lopes; Gil Garrote; Rafał Bogel-Łukasik; Juan Carlos Parajó. Manufacture of furfural in biphasic media made up of an ionic liquid and a co-solvent. Industrial Crops and Products 2015, 77, 163 -166.
AMA StyleSusana Peleteiro, Andre M. Da Costa Lopes, Gil Garrote, Rafał Bogel-Łukasik, Juan Carlos Parajó. Manufacture of furfural in biphasic media made up of an ionic liquid and a co-solvent. Industrial Crops and Products. 2015; 77 ():163-166.
Chicago/Turabian StyleSusana Peleteiro; Andre M. Da Costa Lopes; Gil Garrote; Rafał Bogel-Łukasik; Juan Carlos Parajó. 2015. "Manufacture of furfural in biphasic media made up of an ionic liquid and a co-solvent." Industrial Crops and Products 77, no. : 163-166.
Marcos Henrique Luciano Silveira; Ana Rita C. Morais; André M. Da Costa Lopes; Drielly Nayara Olekszyszen; Rafal Bogel-Lukasik; Juergen Andreaus; Luiz Pereira Ramos. ChemInform Abstract: Current Pretreatment Technologies for the Development of Cellulosic Ethanol and Biorefineries. ChemInform 2015, 46, 1 .
AMA StyleMarcos Henrique Luciano Silveira, Ana Rita C. Morais, André M. Da Costa Lopes, Drielly Nayara Olekszyszen, Rafal Bogel-Lukasik, Juergen Andreaus, Luiz Pereira Ramos. ChemInform Abstract: Current Pretreatment Technologies for the Development of Cellulosic Ethanol and Biorefineries. ChemInform. 2015; 46 (50):1.
Chicago/Turabian StyleMarcos Henrique Luciano Silveira; Ana Rita C. Morais; André M. Da Costa Lopes; Drielly Nayara Olekszyszen; Rafal Bogel-Lukasik; Juergen Andreaus; Luiz Pereira Ramos. 2015. "ChemInform Abstract: Current Pretreatment Technologies for the Development of Cellulosic Ethanol and Biorefineries." ChemInform 46, no. 50: 1.
Environmentally benign methods of value-added product extraction from biomass feedstock can drive greater independence from fossil resources and definitively assure a more sustainable future for the next generations. Thus, the maximal valorization of abundant feedstock, such as residues from agricultural and food industries, for example, contributes positively to the development of bio-based economies. This chapter presents an overview of the advances related with the utilization of ionic liquids with different biomass materials, namely by-products and co-products of the agricultural and food industries, to tackle the treatment of inherently low-value raw materials into value-added products. In this chapter, attention is paid to the type of ionic liquid used, the variety of biomass feedstocks and the combined use of ionic liquids with temperature and with different pre-treatment techniques. Selected examples illustrate the applicability of ionic liquids for obtaining bioactive phytomolecules that can be used in the biomedical, pharmaceutical, environmental and food industries.
André M. Da Costa Lopes; Luísa Bivar Roseiro; Rafal Bogel-Lukasik. CHAPTER 5. Relevance of Ionic Liquids and Biomass Feedstocks for Biomolecule Extraction. Green Chemistry Series 2015, 121 -167.
AMA StyleAndré M. Da Costa Lopes, Luísa Bivar Roseiro, Rafal Bogel-Lukasik. CHAPTER 5. Relevance of Ionic Liquids and Biomass Feedstocks for Biomolecule Extraction. Green Chemistry Series. 2015; ():121-167.
Chicago/Turabian StyleAndré M. Da Costa Lopes; Luísa Bivar Roseiro; Rafal Bogel-Lukasik. 2015. "CHAPTER 5. Relevance of Ionic Liquids and Biomass Feedstocks for Biomolecule Extraction." Green Chemistry Series , no. : 121-167.
Lignocellulosic materials, such as forest, agriculture, and agroindustrial residues, are among the most important resources for biorefineries to provide fuels, chemicals, and materials in such a way to substitute for, at least in part, the role of petrochemistry in modern society. Most of these sustainable biorefinery products can be produced from plant polysaccharides (glucans, hemicelluloses, starch, and pectic materials) and lignin. In this scenario, cellulosic ethanol has been considered for decades as one of the most promising alternatives to mitigate fossil fuel dependence and carbon dioxide accumulation in the atmosphere. However, a pretreatment method is required to overcome the physical and chemical barriers that exist in the lignin–carbohydrate composite and to render most, if not all, of the plant cell wall components easily available for conversion into valuable products, including the fuel ethanol. Hence, pretreatment is a key step for an economically viable biorefinery. Successful pretreatment method must lead to partial or total separation of the lignocellulosic components, increasing the accessibility of holocellulose to enzymatic hydrolysis with the least inhibitory compounds being released for subsequent steps of enzymatic hydrolysis and fermentation. Each pretreatment technology has a different specificity against both carbohydrates and lignin and may or may not be efficient for different types of biomasses. Furthermore, it is also desirable to develop pretreatment methods with chemicals that are greener and effluent streams that have a lower impact on the environment. This paper provides an overview of the most important pretreatment methods available, including those that are based on the use of green solvents (supercritical fluids and ionic liquids).
Marcos Henrique Luciano Silveira; Ana Rita C. Morais; Andre M. Da Costa Lopes; Drielly Nayara Olekszyszen; Rafał Bogel-Łukasik; Jürgen Andreaus; Luiz Pereira Ramos. Current Pretreatment Technologies for the Development of Cellulosic Ethanol and Biorefineries. ChemSusChem 2015, 8, 3366 -3390.
AMA StyleMarcos Henrique Luciano Silveira, Ana Rita C. Morais, Andre M. Da Costa Lopes, Drielly Nayara Olekszyszen, Rafał Bogel-Łukasik, Jürgen Andreaus, Luiz Pereira Ramos. Current Pretreatment Technologies for the Development of Cellulosic Ethanol and Biorefineries. ChemSusChem. 2015; 8 (20):3366-3390.
Chicago/Turabian StyleMarcos Henrique Luciano Silveira; Ana Rita C. Morais; Andre M. Da Costa Lopes; Drielly Nayara Olekszyszen; Rafał Bogel-Łukasik; Jürgen Andreaus; Luiz Pereira Ramos. 2015. "Current Pretreatment Technologies for the Development of Cellulosic Ethanol and Biorefineries." ChemSusChem 8, no. 20: 3366-3390.
The acidic 1-butyl-3-methylimidazolium hydrogen sulfate ([bmim][HSO4]) ionic liquid was explored as both a reaction medium and a catalyst in the furfural production from xylose. Preliminary experiments were carried out at 100–140 °C for 15–480 min in systems containing just xylose dissolved in [bmim][HSO4] in the absence of externally added catalysts. More than 95% xylose conversion was achieved when operating at 120 or 140 °C for 300 and 90 min, respectively; but just 36.7% of the initial xylose was converted to furfural. Operation in biphasic reaction systems (in the presence of toluene, methyl-isobutyl ketone or dioxane as extraction solvents) at 140 °C under selected conditions resulted in improved furfural production (73.8%, 80.3%, and 82.2% xylose conversion to furfural for the cited extraction solvents, respectively).
Susana Peleteiro; Andre M. Da Costa Lopes; Gil Garrote; Juan Carlos Parajó; Rafał Bogel-Łukasik. Simple and Efficient Furfural Production from Xylose in Media Containing 1-Butyl-3-Methylimidazolium Hydrogen Sulfate. Industrial & Engineering Chemistry Research 2015, 54, 8368 -8373.
AMA StyleSusana Peleteiro, Andre M. Da Costa Lopes, Gil Garrote, Juan Carlos Parajó, Rafał Bogel-Łukasik. Simple and Efficient Furfural Production from Xylose in Media Containing 1-Butyl-3-Methylimidazolium Hydrogen Sulfate. Industrial & Engineering Chemistry Research. 2015; 54 (33):8368-8373.
Chicago/Turabian StyleSusana Peleteiro; Andre M. Da Costa Lopes; Gil Garrote; Juan Carlos Parajó; Rafał Bogel-Łukasik. 2015. "Simple and Efficient Furfural Production from Xylose in Media Containing 1-Butyl-3-Methylimidazolium Hydrogen Sulfate." Industrial & Engineering Chemistry Research 54, no. 33: 8368-8373.