1
|
Afifah N, Sarifudin A, Purwanto WW, Krisanti EA, Mulia K. Glucomannan isolation from porang (Amorphophallus muelleri Blume) flour using natural deep eutectic solvents and ethanol: A comparative study. Food Chem 2024; 453:139610. [PMID: 38761726 DOI: 10.1016/j.foodchem.2024.139610] [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: 12/10/2023] [Revised: 05/06/2024] [Accepted: 05/07/2024] [Indexed: 05/20/2024]
Abstract
Ethanol is a common solvent to isolate glucomannan from porang (Amorphophallus muelleri Blume) flour (NPF). This study investigated the use of natural deep eutectic solvents (NADESs) in glucomannan isolation from NPF. NADESs formed by the hydrogen bond acceptors (choline chloride and betaine) and the hydrogen bond donors (glycerol, 1,2-propanediol, formic acid, and acetic acid) in varying molar ratios of 1:2, 1:3, and 1:4 were characterized to optimize glucomannan isolation. The results showed that higher molar ratios of NADES tended to yield porang glucomannan flour (PGF) with higher glucomannan content and viscosity. The gel of PGF exhibited pseudoplastic behavior. The FTIR spectra indicated that betaine-based NADES removed the acetyl groups from glucomannan chains. The PGF obtained from NADESs with a molar ratio of 1:4 was comparable to those obtained from ethanol with a glucomannan content of 87.34 %-93.28 % and a weight-average molecular weight of 9.12 × 105-1.20 × 106 g/mol.
Collapse
Affiliation(s)
- Nok Afifah
- Department of Chemical Engineering, Universitas Indonesia, Depok 16424, Indonesia; Research Center for Appropriate Technology, National Research and Innovation Agency, Subang 41213, Indonesia
| | - Achmat Sarifudin
- Research Center for Appropriate Technology, National Research and Innovation Agency, Subang 41213, Indonesia
| | | | - Elsa Anisa Krisanti
- Department of Chemical Engineering, Universitas Indonesia, Depok 16424, Indonesia
| | - Kamarza Mulia
- Department of Chemical Engineering, Universitas Indonesia, Depok 16424, Indonesia.
| |
Collapse
|
2
|
Pradhan D, Jaiswal S, Tiwari BK, Jaiswal AK. Nanocellulose separation from barley straw via ultrasound-assisted choline chloride - Formic acid deep eutectic solvent pretreatment and high-intensity ultrasonication. ULTRASONICS SONOCHEMISTRY 2024; 110:107048. [PMID: 39241460 DOI: 10.1016/j.ultsonch.2024.107048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 08/22/2024] [Accepted: 08/26/2024] [Indexed: 09/09/2024]
Abstract
The present study aims at investigating the application of ultrasound assisted choline chloride (ChCl) - formic acid (FA) deep eutectic solvent (DES) pretreatment of Barley straw. In addition, the efficiency of a wet grinding followed by high intensity ultrasound (HIUS) treatment for production of cellulose nanofibers (CNF) has been evaluated. The DES (using ChCl: FA at 1:9 M ratio) treatment at 45 kHz ultrasound frequency and 3 h of treatment duration resulted in 84.68 ± 1.02 % and 82.96 ± 0.79 % of lignin and hemicellulose solubilisation, respectively. The purification of DES treated solid residue resulted in cellulose with more than 90 % purity. Further, 10 min of wet grinding followed by 40 min of HIUS treatment resulted in more than 80 % nano-fibrillation efficiency. The produced CNF had diameters less than 100 nm in number size distribution and type I cellulose structure. This study confirmed that the developed process offers a sustainable method for producing nanocellulose from agricultural waste.
Collapse
Affiliation(s)
- Dileswar Pradhan
- Sustainable Packaging and Bioproducts Research (SPBR), School of Food Science and Environmental Health, Faculty of Sciences and Health, Technological University Dublin-City Campus, Central Quad, Grangegorman, Dublin, Ireland; Sustainability and Health Research Hub (SHRH), Technological University Dublin-City Campus, Grangegorman, Dublin, Ireland.
| | - Swarna Jaiswal
- Sustainable Packaging and Bioproducts Research (SPBR), School of Food Science and Environmental Health, Faculty of Sciences and Health, Technological University Dublin-City Campus, Central Quad, Grangegorman, Dublin, Ireland; Sustainability and Health Research Hub (SHRH), Technological University Dublin-City Campus, Grangegorman, Dublin, Ireland.
| | | | - Amit K Jaiswal
- Sustainable Packaging and Bioproducts Research (SPBR), School of Food Science and Environmental Health, Faculty of Sciences and Health, Technological University Dublin-City Campus, Central Quad, Grangegorman, Dublin, Ireland; Sustainability and Health Research Hub (SHRH), Technological University Dublin-City Campus, Grangegorman, Dublin, Ireland.
| |
Collapse
|
3
|
Morozova O, Vasil’eva I, Shumakovich G, Khlupova M, Chertkov V, Shestakova A, Yaropolov A. Green Extraction of Reed Lignin: The Effect of the Deep Eutectic Solvent Composition on the UV-Shielding and Antioxidant Properties of Lignin. Int J Mol Sci 2024; 25:8277. [PMID: 39125847 PMCID: PMC11312954 DOI: 10.3390/ijms25158277] [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: 06/24/2024] [Revised: 07/26/2024] [Accepted: 07/28/2024] [Indexed: 08/12/2024] Open
Abstract
Lignin, the second most abundant natural polymer, is a by-product of the biorefinery and pulp and paper industries. This study was undertaken to evaluate the properties and estimate the prospects of using lignin as a by-product of the pretreatment of common reed straw (Phragmites australis) with deep eutectic solvents (DESs) of various compositions: choline chloride/oxalic acid (ChCl/OA), choline chloride/lactic acid (ChCl/LA), and choline chloride/monoethanol amine (ChCl/EA). The lignin samples, hereinafter referred to as Lig-OA, Lig-LA, and Lig-EA, were obtained as by-products after optimizing the conditions of reed straw pretreatment with DESs in order to improve the efficiency of subsequent enzymatic hydrolysis. The lignin was studied using gel penetration chromatography, UV-vis, ATR-FTIR, and 1H and 13C NMR spectroscopy; its antioxidant activity was assessed, and the UV-shielding properties of lignin/polyvinyl alcohol composite films were estimated. The DES composition had a significant impact on the structure and properties of the extracted lignin. The lignin's ability to scavenge ABTS+• and DPPH• radicals, as well as the efficiency of UV radiation shielding, decreased as follows: Lig-OA > Lig-LA > Lig-EA. The PVA/Lig-OA and PVA/Lig-LA films with a lignin content of 4% of the weight of PVA block UV radiation in the UVA range by 96% and 87%, respectively, and completely block UV radiation in the UVB range.
Collapse
Affiliation(s)
- Olga Morozova
- A. N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Ave. 33, 119071 Moscow, Russia; (O.M.); (I.V.); (G.S.); (M.K.)
| | - Irina Vasil’eva
- A. N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Ave. 33, 119071 Moscow, Russia; (O.M.); (I.V.); (G.S.); (M.K.)
| | - Galina Shumakovich
- A. N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Ave. 33, 119071 Moscow, Russia; (O.M.); (I.V.); (G.S.); (M.K.)
| | - Maria Khlupova
- A. N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Ave. 33, 119071 Moscow, Russia; (O.M.); (I.V.); (G.S.); (M.K.)
| | - Vyacheslav Chertkov
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1/3, 119991 Moscow, Russia;
| | - Alla Shestakova
- State Research Institute of Chemistry and Technology of Organoelement Compounds, Shosse Entuziastov 38, 111123 Moscow, Russia;
| | - Alexander Yaropolov
- A. N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Ave. 33, 119071 Moscow, Russia; (O.M.); (I.V.); (G.S.); (M.K.)
| |
Collapse
|
4
|
Yong KJ, Wu TY. Fractionation of oil palm fronds using ethanol-assisted deep eutectic solvent: Influence of ethanol concentration on enhancing enzymatic saccharification and lignin β-O-4 content. ENVIRONMENTAL RESEARCH 2024; 250:118366. [PMID: 38331153 DOI: 10.1016/j.envres.2024.118366] [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: 11/26/2023] [Revised: 01/12/2024] [Accepted: 01/29/2024] [Indexed: 02/10/2024]
Abstract
Numerous fractionation methods have been developed in recent years for separating components such as cellulose, hemicellulose, and lignin from lignocellulosic biomass wastes. Deep eutectic solvents (DES) have recently been widely investigated as captivating green solvents for biomass fractionation. However, most acidic-based deep eutectic solvent fractionation produces condensed lignin with low β-O-4 content. Besides, most DESs exhibit high viscosity, which results in poor mass transfer properties. This study aimed to address the challenges above by incorporating ethanol into the deep eutectic solvent at various concentrations (10-50 wt%) to fractionate oil palm fronds at a mild condition, i.e., 80 °C, 1 atm. Cellulose residues fractionated with ethanol-assisted deep eutectic solvent showed a maximum glucose yield of 85.8% when 20 wt% of ethanol was incorporated in the deep eutectic solvent, significantly higher than that achieved by pure DES (44.8%). Lignin extracted with ethanol-assisted deep eutectic solvent is lighter in color and higher in β-O-4 contents (up to 44 β-O-4 per 100 aromatic units) than pure DES-extracted lignin. Overall, this study has demonstrated that incorporating ethanol into deep eutectic solvents could enhance the applicability of deep eutectic solvents in the complete valorization of lignocellulosic biomass. Highly enzymatic digestible cellulose-rich solid and β-O-4-rich lignin attained from the fractionation could serve as sustainable precursors for the production of biofuels.
Collapse
Affiliation(s)
- Khai Jie Yong
- Department of Chemical Engineering, School of Engineering, Monash University, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia
| | - Ta Yeong Wu
- Department of Chemical Engineering, School of Engineering, Monash University, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia; Monash-Industry Plant Oils Research Laboratory (MIPO), School of Engineering, Monash University, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia; Centre for Net-Zero Technology, School of Engineering, Monash University, Jalan Lagoon Selatan, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia.
| |
Collapse
|
5
|
Wu Z, Wang T, Zhao Z, Ji Y, Bai H, Jiang Y, Wang X, Nawaz H, He A, Xia J, Xu J, Chen S, Hu L. Niobium-based single-atom catalyst promoted fractionation of lignocellulose in choline chloride-lactic acid deep eutectic solvent. Int J Biol Macromol 2024; 269:132055. [PMID: 38704073 DOI: 10.1016/j.ijbiomac.2024.132055] [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: 01/13/2024] [Revised: 02/27/2024] [Accepted: 05/01/2024] [Indexed: 05/06/2024]
Abstract
Pretreatment is the key step to convert lignocelluloses to sustainable biofuels, biochemicals or biomaterials. In this study, a green pretreatment method based on choline chloride-lactic acid deep eutectic solvent (ChCl-LA) and niobium-based single-atom catalyst (Nb/CN) was developed for the fractionation of corn straw and further enzymatic hydrolysis of cellulose. With this strategy, significant lignin removal of 96.5 % could be achieved when corn straw was pretreated by ChCl-LA (1:2) DES over Nb/CN under 120 °C for 6 h. Enzymatic hydrolysis of the cellulose-enriched fraction (CEF) presented high glucose yield of 92.7 % and xylose yield of 67.5 %. In-depth investigations verified that the high yields of fractions and monosaccharides was attributed to the preliminary fractionation by DES and the deep fractionation by Nb/CN. Significantly, compared to other reported soluble catalysts, the synthesized single-atom catalyst displayed excellent reusability by simple filtration and enzymatic hydrolysis. The recyclability experiments showed that the combination of ChCl-LA DES and Nb/CN could be repeated at least three times for corn straw fractionation, moreover, the combination displayed remarkable feedstock adaptability.
Collapse
Affiliation(s)
- Zhen Wu
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an 223300, China.
| | - Tao Wang
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an 223300, China
| | - Zihe Zhao
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an 223300, China
| | - Yifan Ji
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an 223300, China
| | - Hongli Bai
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an 223300, China
| | - Yetao Jiang
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an 223300, China
| | - Xiaoyu Wang
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an 223300, China
| | - Haq Nawaz
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an 223300, China
| | - Aiyong He
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an 223300, China
| | - Jun Xia
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an 223300, China
| | - Jiaxing Xu
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an 223300, China
| | - Sheng Chen
- Beijing Key Laboratory of Lignocellulosic Chemistry, College of Materials Science and Technology, Beijing Forestry University, Beijing 100083, China
| | - Lei Hu
- Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huai'an 223300, China.
| |
Collapse
|
6
|
Sang X, Ban L, Shi X, Zhao Y, Yang B, Chen C, Zheng K, Zhou H, Zhao T. Eco-Friendly Production of Boron Nitride Nanosheets via Deep Eutectic Solvents and Their Application in Enhancing Thermal Conductivity of PVDF Composites. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:10107-10114. [PMID: 38691012 DOI: 10.1021/acs.langmuir.4c00378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
Boron nitride nanosheets (BNNS) are expected to be ideal fillers because of their high thermal conductivity and excellent electrical insulation. However, it is still an open challenge to produce BNNS on a large scale using ecofriendly solvents. Here, first, we demonstrate an effective liquid exfoliation method for producing BNNS via utilizing deep eutectic solvents (DES) composed of D,L-menthol and various acids with the assistance of ultrasonication. The results show that the BNNSs with sizes of 1-2 μm in width and 6-8 nm in thickness were successfully exfoliated with a DES formulation of D,L-menthol and decanoic acid. Second, the obtained BNNSs were used for fabricating 1,6-hexanediol diacrylate@polydopamine functionalized BNNS (HDDA@BNNSs-PDA) core-shell microspheres via a Pickering emulsion method. Furthermore, these microspheres were incorporated into a polyvinylidene fluoride (PVDF) matrix to construct 3D thermally conductive networks, leading to a substantial enhancement in the thermal conductivity of the resulting composites. Impressively, the composites with only 25 wt % of BNNS loading reach a high thermal conductivity of 3.20 W/m K, which is a 1500% increase over the pure polymer matrix. This work not only provides a significant way for producing BNNSs ecofriendly but also demonstrates a tactic for constructing 3D thermally conductive networks.
Collapse
Affiliation(s)
- Xinxin Sang
- Key Laboratory of Synthesis and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Lulu Ban
- Key Laboratory of Synthesis and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Xianbin Shi
- Key Laboratory of Synthesis and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Yaxing Zhao
- Key Laboratory of Synthesis and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Binjie Yang
- Key Laboratory of Synthesis and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Chen Chen
- Key Laboratory of Synthesis and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Kun Zheng
- Key Laboratory of Science and Technology on High-Tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Heng Zhou
- Key Laboratory of Science and Technology on High-Tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Tong Zhao
- Key Laboratory of Science and Technology on High-Tech Polymer Materials, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| |
Collapse
|
7
|
Hu Q, Xu Y, Wang Y, Gong W, Ma CY, Li S, Wen JL. Promoting the disassemble and enzymatic saccharification of bamboo shoot shells via efficient hydrated alkaline deep eutectic solvent pretreatment. Int J Biol Macromol 2024; 264:130702. [PMID: 38471607 DOI: 10.1016/j.ijbiomac.2024.130702] [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: 11/28/2023] [Revised: 02/16/2024] [Accepted: 03/05/2024] [Indexed: 03/14/2024]
Abstract
Pretreatment is a key process restricting the development of biorefinery. This work developed a pretreatment process based on an ethanolamine/acetamide alkaline deep eutectic solvent (ADES). Under microwave assistance, pure ADES pretreatment at 100 °C for 10 min achieved 95.9 % delignification and 95.2 % hemicellulose removal of bamboo shoot shells (BSS). Further, when 75 % water was added to pure DES to prepare hydrated DES (75 %-HADES), impressive delignification (93.2 %), hemicellulose removal (92.2 %) and cellulose recovery (94.8 %) were still achieved. The cellulose digestibility of the 75 %-HADES pretreated solid residue was significantly increased from 12.2 % (the control) to 91.2 %. Meanwhile, the structural features of hemicellulose and lignin macromolecules fractionated by 75 %-HADES pretreatment were well preserved, offering opportunities for downstream utilization. Overall, this work proposes an effective pretreatment strategy with the potential to enable the utilization of all major components of bamboo shoot shells.
Collapse
Affiliation(s)
- Qiang Hu
- Bamboo Diseases and Pests Control and Resources Development Key Laboratory of Sichuan Province, Leshan Normal University, Leshan 614000, China; College of Life Science, Leshan Normal University, Leshan 614000, China
| | - Ying Xu
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, PR China
| | - Yanyun Wang
- College of Life Science, Leshan Normal University, Leshan 614000, China
| | - Weihua Gong
- Jishou University National and local united engineering laboratory of integrative utilization technology of Eucommia ulmoides, Jishou 416000, China
| | - Cheng-Ye Ma
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, PR China.
| | - Sheng Li
- Chongqing Academy of Chinese Materia Medica, Chongqing College of Traditional Chinese Medicine, Chongqing 400065, China
| | - Jia-Long Wen
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, PR China.
| |
Collapse
|
8
|
Liu W, Li Z, Ren Q, Jiang C, Feng J, Hou Q. Upgrading lignin macromolecular by green and recyclable ternary deep eutectic solvents. BIORESOURCE TECHNOLOGY 2024; 394:130230. [PMID: 38141882 DOI: 10.1016/j.biortech.2023.130230] [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: 10/25/2023] [Revised: 12/18/2023] [Accepted: 12/18/2023] [Indexed: 12/25/2023]
Abstract
Lignin is the most abundant natural aromatic macromolecule in the nature, but its high value-added utilization has been seriously hindered by the highly random and branched structures and the high difficulty in separation and purification. A microwave-assisted ternary deep eutectic solvent (DES) composed by formic acid, lactic acid and choline chloride was developed for lignin pretreatment. The effects of three types of DES on main characteristics of lignin were investigated, and the corresponding dissolution mechanism was proposed. The results showed that, the microwave-assisted ternary DES pretreatment showed an obvious improvement on main characteristics of regenerated lignin, e.g., a higher purity, lower molecular weight with reduced dispersity, improved thermal stability, higher phenolic hydroxyl content, and increased antioxidative activity in comparison with control. It is expected that the lignin macromolecular can be facile regulated and upgraded by the proposed ternary DES.
Collapse
Affiliation(s)
- Wei Liu
- Tianjin Key Laboratory of Pulp & Paper, Tianjin University of Science & Technology, Tianjin 300457, China; State Key Laboratory of Biobased Fiber Manufacturing Technology, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Zhan Li
- Tianjin Key Laboratory of Pulp & Paper, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Qian Ren
- Tianjin Key Laboratory of Pulp & Paper, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Chuang Jiang
- Tianjin Key Laboratory of Pulp & Paper, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Jinlong Feng
- Tianjin Key Laboratory of Pulp & Paper, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Qingxi Hou
- Tianjin Key Laboratory of Pulp & Paper, Tianjin University of Science & Technology, Tianjin 300457, China; State Key Laboratory of Biobased Fiber Manufacturing Technology, Tianjin University of Science and Technology, Tianjin 300457, China
| |
Collapse
|
9
|
Yao X, Pan Y, Ma X, Yin S, Zhu M. Efficient separation and production of high-quality rubber, lignin nanoparticles and fermentable sugars from Eucommia ulmoides pericarp via deep eutectic solvent pretreatment. Int J Biol Macromol 2023; 253:127221. [PMID: 37797857 DOI: 10.1016/j.ijbiomac.2023.127221] [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: 08/19/2023] [Revised: 09/21/2023] [Accepted: 10/01/2023] [Indexed: 10/07/2023]
Abstract
The natural barriers of lignocellulose hinder the separation of Eucommia ulmoides rubber (EUR) from Eucommia ulmoides pericarp (EUP), whereas traditional separation methods normally lead to the waste of Eucommia ulmoides lignocellulose resource and environmental pollution. In this study, an acidic deep eutectic solvent composed of lactic acid and ZnCl2 was developed as a pretreatment medium to reduce the separation barriers of EUR while producing lignin nanoparticles and fermentable sugars. Results showed that DES pretreatment could accelerate the extraction efficiency (91.0 %) and purity (>99 %) of EUR and maintain its chemical structure compared to the traditional alkaline and mechanical methods. Meanwhile, the regenerated nano-lignin showed excellent antioxidant activity (IC50 = 46.3 μg/mL) comparable to commercial antioxidant BHA. Besides, the enzymatic hydrolysis efficiency of EUP with DES pretreatment was significantly enhanced about 9 times than the control groups. Overall, the acidic DES pretreatment could be considered a promising pretreatment method for separation of high-quality EUR and valorization of lignocellulosic components.
Collapse
Affiliation(s)
- Xuefeng Yao
- College of Mechanical and Electronic Engineering, Northwest Agriculture & Forestry University, Yangling 712100, China; Northwest Research Center of Rural Renewable Energy Exploitation and Utilization of M.O.A, Northwest Agriculture & Forestry University, Yangling 712100, China
| | - Yuan Pan
- College of Forestry, Northwest Agriculture & Forestry University, Yangling 712100, China
| | - Xuefeng Ma
- College of Mechanical and Electronic Engineering, Northwest Agriculture & Forestry University, Yangling 712100, China; Northwest Research Center of Rural Renewable Energy Exploitation and Utilization of M.O.A, Northwest Agriculture & Forestry University, Yangling 712100, China
| | - Shuangshuang Yin
- College of Mechanical and Electronic Engineering, Northwest Agriculture & Forestry University, Yangling 712100, China; Northwest Research Center of Rural Renewable Energy Exploitation and Utilization of M.O.A, Northwest Agriculture & Forestry University, Yangling 712100, China
| | - Mingqiang Zhu
- College of Mechanical and Electronic Engineering, Northwest Agriculture & Forestry University, Yangling 712100, China; Northwest Research Center of Rural Renewable Energy Exploitation and Utilization of M.O.A, Northwest Agriculture & Forestry University, Yangling 712100, China.
| |
Collapse
|
10
|
Lobato-Rodríguez Á, Gullón B, Romaní A, Ferreira-Santos P, Garrote G, Del-Río PG. Recent advances in biorefineries based on lignin extraction using deep eutectic solvents: A review. BIORESOURCE TECHNOLOGY 2023; 388:129744. [PMID: 37690487 DOI: 10.1016/j.biortech.2023.129744] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 08/09/2023] [Accepted: 09/06/2023] [Indexed: 09/12/2023]
Abstract
Considering the urgent need for alternative biorefinery schemes based on sustainable development, this review aims to summarize the state-of-the-art in the use of deep eutectic solvent pretreatment to fractionate lignocellulose, with a focus on lignin recovery. For that, the key parameters influencing the process are discussed, as well as various strategies to enhance this pretreatment efficiency are explored. Moreover, this review describes the challenges and opportunities associated with the valorization of extraction-derived streams and highlights recent advancements in solvent recovery techniques. Furthermore, the utilization of computational models for process design and optimization is introduced, as the initial attempts at the economic and environmental assessment of this lignocellulosic bioprocess based on deep eutectic solvents. Overall, this review offers a comprehensive perspective on the recent advances in this emerging field and serves as a foundation for further research on the potential integration of deep eutectic pretreatment in sustainable multi-product biorefinery schemes.
Collapse
Affiliation(s)
- Álvaro Lobato-Rodríguez
- Universidade de Vigo, Departamento de Enxeñaría Química, Facultade de Ciencias, 32004 Ourense, Spain; Instituto de Agroecoloxía e Alimentación (IAA). Universidade de Vigo - Campus Auga, 32004 Ourense, Spain
| | - Beatriz Gullón
- Universidade de Vigo, Departamento de Enxeñaría Química, Facultade de Ciencias, 32004 Ourense, Spain; Instituto de Agroecoloxía e Alimentación (IAA). Universidade de Vigo - Campus Auga, 32004 Ourense, Spain.
| | - Aloia Romaní
- Universidade de Vigo, Departamento de Enxeñaría Química, Facultade de Ciencias, 32004 Ourense, Spain; Instituto de Agroecoloxía e Alimentación (IAA). Universidade de Vigo - Campus Auga, 32004 Ourense, Spain
| | - Pedro Ferreira-Santos
- Universidade de Vigo, Departamento de Enxeñaría Química, Facultade de Ciencias, 32004 Ourense, Spain
| | - Gil Garrote
- Universidade de Vigo, Departamento de Enxeñaría Química, Facultade de Ciencias, 32004 Ourense, Spain; Instituto de Agroecoloxía e Alimentación (IAA). Universidade de Vigo - Campus Auga, 32004 Ourense, Spain
| | - Pablo G Del-Río
- Universidade de Vigo, Departamento de Enxeñaría Química, Facultade de Ciencias, 32004 Ourense, Spain; Instituto de Agroecoloxía e Alimentación (IAA). Universidade de Vigo - Campus Auga, 32004 Ourense, Spain; School of Engineering, Stokes Laboratories, Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland
| |
Collapse
|
11
|
Mero A, Moody NR, Husanu E, Mezzetta A, D’Andrea F, Pomelli CS, Bernaert N, Paradisi F, Guazzelli L. Challenging DESs and ILs in the valorization of food waste: a case study. Front Chem 2023; 11:1270221. [PMID: 37942401 PMCID: PMC10628488 DOI: 10.3389/fchem.2023.1270221] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 10/12/2023] [Indexed: 11/10/2023] Open
Abstract
In this study, the efficacy of two of the best performing green solvents for the fractionation of lignocellulosic biomass, cholinium arginate (ChArg) as biobased ionic liquid (Bio-IL) and ChCl:lactic acid (ChCl:LA, 1:10) as natural deep eutectic solvent (NADES), was investigated and compared in the pretreatment of an agri-food industry waste, apple fibers (90°C for 1 h). For the sake of comparison, 1-butyl-3-methylimidazolium acetate (BMIM OAc) as one of the best IL able to dissolve cellulose was also used. After the pretreatment, two fractions were obtained in each case. The results gathered through FTIR and TG analyses of the two materials and the subsequent DNS assay performed after enzymatic treatment led to identify ChArg as the best medium to delignify and remove waxes, present on the starting apple fibers, thus producing a material substantially enriched in cellulose (CRM). Conversely, ChCl:LA did not provide satisfactorily results using these mild conditions, while BMIM OAc showed intermediate performance probably on account of the reduced crystallinity of cellulose after the dissolution-regeneration process. To corroborate the obtained data, FTIR and TG analyses were also performed on the residues collected after the enzymatic hydrolysis. At the end of the pretreatment, ChArg was also quantitatively recovered without significant alterations.
Collapse
Affiliation(s)
- Angelica Mero
- Department of Pharmacy, Università di Pisa, Pisa, Italy
- Consorzio INSTM, Firenze, Italy
| | - Nicholas R. Moody
- Department of Chemistry, University of Nottingham, Nottingham, United Kingdom
| | - Elena Husanu
- Department of Pharmacy, Università di Pisa, Pisa, Italy
| | - Andrea Mezzetta
- Department of Pharmacy, Università di Pisa, Pisa, Italy
- Consorzio INSTM, Firenze, Italy
| | - Felicia D’Andrea
- Department of Pharmacy, Università di Pisa, Pisa, Italy
- Consorzio INSTM, Firenze, Italy
| | | | - Nathalie Bernaert
- Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Technology and Food Science Unit, Melle, Belgium
| | - Francesca Paradisi
- Department of Chemistry, University of Nottingham, Nottingham, United Kingdom
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Bern, Switzerland
| | - Lorenzo Guazzelli
- Department of Pharmacy, Università di Pisa, Pisa, Italy
- Consorzio INSTM, Firenze, Italy
| |
Collapse
|
12
|
Yao L, Chai Chai M, Cui P, Geun Yoo C, Yuan J, Meng X, Yang H. Mechanism of enhanced enzymatic hydrolysis performance by ethanol assisted deep eutectic solvent pretreatment- from the perspective of lignin. BIORESOURCE TECHNOLOGY 2023:129461. [PMID: 37423545 DOI: 10.1016/j.biortech.2023.129461] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 07/03/2023] [Accepted: 07/04/2023] [Indexed: 07/11/2023]
Abstract
Valorization of lignocellulose has received a lot of attention due to the abundance of lignocellulosics. It was showed that synergistic carbohydrate conversion and delignification could be achieved via ethanol assisted DES (choline chloride/lactic acid) pretreatment. To explore the reaction mechanism of lignin in the DES, milled wood lignin obtained from Broussonetia papyrifera was subjected to pretreatment at critical temperatures. The results suggested that ethanol assistance could contribute the incorporation of ethyl groups and reduce condensation structures of Hibbert's ketone. Adding ethanol at 150 °C not only decreased formation of condensed G unit (from 7.23% to 0.87%), but also removed J and S' substructures, thus effectively reducing the adsorption of lignin on cellulase, and promoting the glucose yield after enzymatic hydrolysis.
Collapse
Affiliation(s)
- Lan Yao
- Key Laboratory of Fermentation Engineering (Ministry of Education), Cooperative Innovation Center of Industrial Fermentation (Ministry of Education & Hubei Province), College of Bioengineering, Hubei University of Technology, Wuhan 430068, PR China; Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan 430068, PR China
| | - Mengzhen Chai Chai
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan 430068, PR China
| | - Pingping Cui
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan 430068, PR China
| | - Chang Geun Yoo
- Department of Chemical Engineering, State University of New York College of Environmental Science and Forestry, Syracuse, NY 13210, USA
| | - Jie Yuan
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan 430068, PR China
| | - Xianzhi Meng
- Department of Chemical and Biomolecular Engineering, University of Tennessee Knoxville, Knoxville, TN 37996-2200, USA
| | - Haitao Yang
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan 430068, PR China; State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, PR China.
| |
Collapse
|
13
|
Xiao Z, Liu M, Bi W, Chen DDY. Ionic liquid as hydrogen bond acceptor in the extraction of nutritional natural products. Food Chem 2023; 412:135589. [PMID: 36736187 DOI: 10.1016/j.foodchem.2023.135589] [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: 09/22/2022] [Revised: 01/02/2023] [Accepted: 01/25/2023] [Indexed: 01/29/2023]
Abstract
In-depth studies of the extraction mechanism using deep eutectic solvents (DES), especially extraction through the formation of a deep eutectic system (DESys), revealed commonalities between the DES- and ionic liquids (IL)-based extraction systems. New applications of ILs and DES for extraction of nutritional natural products were presented. In this study, the extraction behavior of choline chloride (ChCl) and 1-(2-hydroxyethyl)-3-methylimidazolium chloride ([HMIm][Cl]) in DES and IL, respectively, in mechanochemical extraction of target compounds from Moringa oleifera leaves was systematically studied. The results suggested that both extraction methods were based on the formation of a DESys, either a normal DESys or an IL DESys. Considering the DESys-based one-step extraction improves the extraction efficiency and reduces the preparation time, the same idea can be used in IL for performance improvement. By formation of a new IL deep eutectic system based on hydrogen bond interaction in extraction, similar improvement was obtained.
Collapse
Affiliation(s)
- Zhixin Xiao
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biomedical Materials, College of Chemistry and Materials Science, Nanjing Normal University, 1 Wenyuan Road, Nanjing 210023, China
| | - Min Liu
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biomedical Materials, College of Chemistry and Materials Science, Nanjing Normal University, 1 Wenyuan Road, Nanjing 210023, China
| | - Wentao Bi
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biomedical Materials, College of Chemistry and Materials Science, Nanjing Normal University, 1 Wenyuan Road, Nanjing 210023, China.
| | - David Da Yong Chen
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biomedical Materials, College of Chemistry and Materials Science, Nanjing Normal University, 1 Wenyuan Road, Nanjing 210023, China; Department of Chemistry, University of British Columbia, Vancouver, BC V6T 1Z1, Canada.
| |
Collapse
|
14
|
Wang J, Han X, Wu W, Wang X, Ding L, Wang Y, Li S, Hu J, Yang W, Zhang C, Jiang S. Oxidation of cellulose molecules toward delignified oxidated hot-pressed wood with improved mechanical properties. Int J Biol Macromol 2023; 231:123343. [PMID: 36682656 DOI: 10.1016/j.ijbiomac.2023.123343] [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: 11/09/2022] [Revised: 01/10/2023] [Accepted: 01/15/2023] [Indexed: 01/21/2023]
Abstract
Wooden building materials have advantages in terms of biodegradability, non-toxicity, pollution-free and recycling. Currently, applications of natural wood are extremely limited because of low density, low strength and toughness. Therefore, we reported an effective modification strategy with nano-scale cellulose nanofibrils design to prepare a synergistically enhanced cellulosic material. Via three steps: i) the secondary alcohol hydroxyl groups in C2, C3 position were cut; ii) oxidize the hydroxyl group at C2, C3 position to achieve dialdehyde cellulose; and iii) oxidized again to obtain dicarboxylic cellulose. Subsequently, thanks to the regulation of the average moisture content, the moisture content in the wood surface and subsurface increased in a short time. The wood softening layer contributes to the hotpressing treatment of the wood. The mechanical properties and dimensionality have been greatly improved. The obtained delignified oxidated hot-pressed wood with 0.55 mmol/g carboxyl group content demonstrates excellent strength of 328.8 ± 7.43 MPa and Young's modulus of 8.1 ± 0.14 GPa, which is twice than that of natural wood. Delignified oxidated hot-pressed wood also shows exceptional toughness of 8.3 ± 0.28 MJ/m3. Other than that, the shore hardness indicates 0.55 mmol/g carboxylic group, which could increase the hardness at the wood surface hardness to 72.5 ± 4.29°.
Collapse
Affiliation(s)
- Jingwen Wang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Xiaoshuai Han
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China.
| | - Weijie Wu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China.
| | - Xiaoyi Wang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Linhu Ding
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Yuli Wang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Shanshan Li
- College of Pharmacy, Southwest Minzu University, Chengdu 610000, China.
| | - Jiapeng Hu
- Key Laboratory of Green Chemical Technology of Fujian Province University, College of Ecological and Resources Engineering, Wuyi University, Wuyishan 354300, China
| | - Weisen Yang
- Key Laboratory of Green Chemical Technology of Fujian Province University, College of Ecological and Resources Engineering, Wuyi University, Wuyishan 354300, China.
| | - Chunmei Zhang
- Institute of Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China.
| | - Shaohua Jiang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China.
| |
Collapse
|
15
|
Ullah A, Zhang Y, Liu C, Qiao Q, Shao Q, Shi J. Process intensification strategies for green solvent mediated biomass pretreatment. BIORESOURCE TECHNOLOGY 2023; 369:128394. [PMID: 36442603 DOI: 10.1016/j.biortech.2022.128394] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/20/2022] [Accepted: 11/22/2022] [Indexed: 06/16/2023]
Abstract
Demonstrated to be highly effective for lignocellulosic biomass pretreatment, deep eutectic solvent (DES) has attracted increasing attention owing to its advantages of simple synthesis, relatively low chemical cost, and better biocompatibility as compared to certain ionic liquids. Here we provide a critical review of the status of the design/selection of DES for the pretreatment of biomass feedstocks with an emphasis on the process intensification strategies: 1) integration of microwave, ultrasound, and high solid extrusion for pretreating biomass, 2) one-pot DES pretreatment, enzymatic hydrolysis, and fermentation, 3) strategies for DES recycling and product recovery; and 4) recent progress on molecular simulations toward understanding the interactions between DES and biomass compounds such as lignin and cellulose. Lastly, we provide perspectives toward cost-effective, continuous, high-solid, environmental-benign, and industrial-relevant applications and point to future research directions to address the challenges associated with DES pretreatment.
Collapse
Affiliation(s)
- Ahamed Ullah
- Department of Biosystems and Agricultural Engineering, University of Kentucky, Lexington, Kentucky 40546, USA
| | - Yuxuan Zhang
- Department of Biosystems and Agricultural Engineering, University of Kentucky, Lexington, Kentucky 40546, USA
| | - Can Liu
- Department of Biosystems and Agricultural Engineering, University of Kentucky, Lexington, Kentucky 40546, USA
| | - Qi Qiao
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506, USA
| | - Qing Shao
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506, USA
| | - Jian Shi
- Department of Biosystems and Agricultural Engineering, University of Kentucky, Lexington, Kentucky 40546, USA.
| |
Collapse
|
16
|
Ceaser R, Rosa S, Montané D, Constantí M, Medina F. Optimization of softwood pretreatment by microwave-assisted deep eutectic solvents at high solids loading. BIORESOURCE TECHNOLOGY 2023; 369:128470. [PMID: 36509304 DOI: 10.1016/j.biortech.2022.128470] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 12/03/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
Microwave-assisted deep eutectic solvent (DES) has received attention as an ultrafast pretreatment method in lignocellulose fractionation. This study investigated the improvement of milled softwood mixture (MSM) fractionation with chlorine chloride-formic acid (ChCl:FA) to obtain residues with high glucan retention and purity while removing majority of the lignin and hemicelluloses. At the optimum pretreatment conditions i.e., ChCl:FA (1:4), 140 °C, 14 min, 800 W and 15 % (w/v), 96.2 % hemicellulose removal, 90.1 % delignification and 93.5 % glucan retention were achieved. About 85 % lignin was recovered with a 95 % purity when solid loading was 10-20 % (w/v). This study showed that microwave assisted ChCl:FA pretreatment was a suitable means to fractionate MSM to achieve high quality glucan and lignin at high solid loading.
Collapse
Affiliation(s)
- Regan Ceaser
- Departament d'Enginyeria Química, Universitat Rovira i Virgili, 43007 Tarragona, Spain
| | - Silvia Rosa
- Departament d'Enginyeria Química, Universitat Rovira i Virgili, 43007 Tarragona, Spain
| | - Daniel Montané
- Departament d'Enginyeria Química, Universitat Rovira i Virgili, 43007 Tarragona, Spain
| | - Magda Constantí
- Departament d'Enginyeria Química, Universitat Rovira i Virgili, 43007 Tarragona, Spain.
| | - Francesc Medina
- Departament d'Enginyeria Química, Universitat Rovira i Virgili, 43007 Tarragona, Spain
| |
Collapse
|
17
|
Yang J, Zhang W, Tang Y, Li M, Peng F, Bian J. Mild pretreatment with Brønsted acidic deep eutectic solvents for fractionating β-O-4 linkage-rich lignin with high sunscreen performance and evaluation of enzymatic saccharification synergism. BIORESOURCE TECHNOLOGY 2023; 368:128258. [PMID: 36347474 DOI: 10.1016/j.biortech.2022.128258] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/26/2022] [Accepted: 10/29/2022] [Indexed: 06/16/2023]
Abstract
Herein, a mild fractionation method by employing polyol-based Brønsted acidic DESs (BDESs) was proposed to extract lignin with well-preserved β-O-4 substructures and to enhance fermentable sugar yields simultaneously. For ethylene glycol-oxalic acid (EG-OA), more than 53 % of lignin was obtained and superb carbohydrate digestibility (i.e., glucose and xylose yields were reached to 94.6 % and 87.7 %, respectively) was achieved after pretreatment. Remarkably, detailed structural studies revealed that the polyol was incorporated into lignin, which stabilized reactive carbocation intermediates formed during BDESs treatment and prevented undesired recondensation reactions. This lignin protection mechanism was shown to play a key role in enzymatic hydrolysis enhancement and lignin valorization. The resultant β-O-4 linkage-rich lignin fractions were attractive for natural sunscreen applications due to their lighter color and excellent UV-blocking performance. Overall, this work proposed a sustainable and economically practical lignin-first biorefinery approach that is beneficial for achieving comprehensive valorization of lignocellulose.
Collapse
Affiliation(s)
- Jiyou Yang
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Wanjing Zhang
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Yiquan Tang
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Mingfei Li
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Feng Peng
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Jing Bian
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China.
| |
Collapse
|
18
|
Li P, Lu Y, Li X, Ren J, Jiang Z, Jiang B, Wu W. Comparison of the Degradation Performance of Seven Different Choline Chloride-Based DES Systems on Alkaline Lignin. Polymers (Basel) 2022; 14:5100. [PMID: 36501493 PMCID: PMC9740465 DOI: 10.3390/polym14235100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/22/2022] [Accepted: 11/22/2022] [Indexed: 11/25/2022] Open
Abstract
Lignin is a natural polymer second only to cellulose in natural reserves, whose structure is an aromatic macromolecule composed of benzene propane monomers connected by chemical bonds such as carbon-carbon bonds and ether bonds. Degradation is one of the ways to achieve the high-value conversion of lignin, among which the heating degradation of lignin by deep eutectic solvent (DES) can be an excellent green degradation method. In this study, choline chloride (CC) was used as the hydrogen bond acceptor, and urea (UR), ethylene glycol (GC), glycerol (GE), acetic acid (AA), formic and acetic mixed acid (MA), oxalic acid (OX), and p-toluenesulfonic acid (TA) were used as hydrogen bond donors to degrade lignin. NMR hydrogen spectroscopy was used for the simple and rapid determination of phenolic hydroxyl groups in lignin. FT-IR spectroscopy was used to characterize the changes of functional groups of lignin during DES treatment. GPC observed the molecular weight of lignin after degradation and found a significant increase in the homogeneity (1.6-2.0) and a significant decrease in the molecular weight Mw (2478-4330) of the regenerated lignin. It was found that acidic DES was more effective in depolymerizing alkaline lignin, especially for the toluene-choline chloride. Seven DES solutions were recovered, and it was found that the recovery of DES still reached more than 80% at the first recovery.
Collapse
Affiliation(s)
- Penghui Li
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Yuan Lu
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Xiaoyu Li
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Jianpeng Ren
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Zhengwei Jiang
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Bo Jiang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Wenjuan Wu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China
| |
Collapse
|
19
|
Hydrogen bonding boosted oxidative desulfurization by ZnCl2/boric acid/polyethylene glycol-based ternary deep eutectic solvents. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
20
|
Li P, Yang C, Jiang Z, Jin Y, Wu W. Lignocellulose Pretreatment by Deep Eutectic Solvents and Related Technologies: A Review. JOURNAL OF BIORESOURCES AND BIOPRODUCTS 2022. [DOI: 10.1016/j.jobab.2022.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
|
21
|
Meindl A, Petutschnigg A, Schnabel T. Microwave-Assisted Lignin Extraction-Utilizing Deep Eutectic Solvents to Their Full Potential. Polymers (Basel) 2022; 14:polym14204319. [PMID: 36297896 PMCID: PMC9609841 DOI: 10.3390/polym14204319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/10/2022] [Accepted: 10/12/2022] [Indexed: 11/07/2022] Open
Abstract
The current research intended to investigate the suitability of different choline-chloride-based deep eutectic solvents for their role in microwave lignin extraction. Lignin, a widely spread biopolymer in plants and woody structures, is a valuable replacement for fossil-fuel-based materials. While some promising applications have been trialled already, the extraction of this material from its matrix still causes problems. Here, we highlight an efficient and fast method to extract lignin from untreated larch bark with deep eutectic solvents in a standard domestic microwave. We developed a straightforward, green methodology, which can be used on various reaction scales, with materials available to many researchers. Lignin was extracted within only 30 min of microwave irradiation in yields of up to 96%. Compared to traditional deep eutectic extraction by conventional heating, the reaction time was cut by 87% and the energy costs were reduced by 93.5%. The hydrogen bond donors were exchanged and different types, namely acid-based, hydroxyl-based and amide-based donor systems, were evaluated for their suitability concerning microwave lignin extraction. This study presents a novel approach towards energy-efficient and green lignin valorisation, without the inherent need for costly equipment.
Collapse
Affiliation(s)
- Alina Meindl
- Forest Products Technology and Timber Constructions Department, Salzburg University of Applied Sciences, Markt 136a, 5431 Kuchl, Austria
- Correspondence: (A.M.); (T.S.)
| | - Alexander Petutschnigg
- Forest Products Technology and Timber Constructions Department, Salzburg University of Applied Sciences, Markt 136a, 5431 Kuchl, Austria
- Salzburg Center for Smart Materials, Jakob-Haringer Straße 2a, 5020 Salzburg, Austria
- Department of Material Sciences and Process Engineering, University of Natural Resources and Life Sciences (BOKU), Konrad Lorenz-Straße 24, 3340 Tulln, Austria
| | - Thomas Schnabel
- Forest Products Technology and Timber Constructions Department, Salzburg University of Applied Sciences, Markt 136a, 5431 Kuchl, Austria
- Faculty of Furniture Design and Wood Engineering, Transilvania University of Brasov, B-dul. Eroilor nr. 29, 500036 Brasov, Romania
- Correspondence: (A.M.); (T.S.)
| |
Collapse
|
22
|
Ling R, Wei W, Jin Y. Pretreatment of sugarcane bagasse with acid catalyzed ethylene glycol-water to improve the cellulose enzymatic conversion. BIORESOURCE TECHNOLOGY 2022; 361:127723. [PMID: 35914671 DOI: 10.1016/j.biortech.2022.127723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/27/2022] [Accepted: 07/28/2022] [Indexed: 06/15/2023]
Abstract
In this work, HCl catalyzed ethylene glycol-water pretreatment (HCl/EG-H2O) of sugarcane bagasse (SCB) was explored with response surface methodology (RSM) and single factor analysis, which aim to investigate the influence of pretreatment variable on pretreated solid cellulose enzymatic conversion. The result showed that HCl/EG-H2O pretreatment could selectively extract ∼89.9 % xylan and ∼61.2 % lignin in SCB, meanwhile maintain a relatively high cellulose retention (∼86.8 %). Pretreatment of SCB at 120 °C for 60 min with 1.00 % HCl and 90 % EG obtained the pretreated solid having maximum cellulose enzymatic conversion of 88.7 % under 10 FPU/g enzyme dosage, this enhancement of cellulose enzymatic conversion mainly attributed to structure change of SCB in pretreatment. The adding of enzymatic additives into the hydrolysis process could not only improve hydrolysis efficiency but also lower the enzyme dosage. Besides, the linear relationship between substrate characteristic parameters (such cellulose content, lignin removal rate etc.) and cellulose conversion were observed.
Collapse
Affiliation(s)
- Rongxin Ling
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, No. 159 Longpan Road, Nanjing 210037, China; Joint International Research Lab of Lignocellulosic Functional Materials, Nanjing Forestry University, No. 159 Longpan Road, Nanjing 210037, China
| | - Weiqi Wei
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, No. 159 Longpan Road, Nanjing 210037, China; Joint International Research Lab of Lignocellulosic Functional Materials, Nanjing Forestry University, No. 159 Longpan Road, Nanjing 210037, China
| | - Yongcan Jin
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, No. 159 Longpan Road, Nanjing 210037, China; Joint International Research Lab of Lignocellulosic Functional Materials, Nanjing Forestry University, No. 159 Longpan Road, Nanjing 210037, China.
| |
Collapse
|
23
|
Liu B, Liu L, Deng B, Huang C, Zhu J, Liang L, He X, Wei Y, Qin C, Liang C, Liu S, Yao S. Application and prospect of organic acid pretreatment in lignocellulosic biomass separation: A review. Int J Biol Macromol 2022; 222:1400-1413. [PMID: 36195224 DOI: 10.1016/j.ijbiomac.2022.09.270] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 08/20/2022] [Accepted: 09/28/2022] [Indexed: 11/28/2022]
Abstract
As a clean and efficient method of lignocellulosic biomass separation, organic acid pretreatment has attracted extensive research. Hemicellulose or lignin is selectively isolated and the cellulose structure is preserved. Effective fractionation of lignocellulosic biomass is achieved. The separation characteristics of hemicellulose or lignin by different organic acids were summarized. The organic acids of hemicellulose were separated into hydrogen ionized, autocatalytic and α-hydroxy acids according to the separation mechanism. The separation of lignin depends on the dissolution mechanism and spatial effect of organic acids. In addition, the challenges and prospects of organic acid pretreatment were analyzed. The separation of hemicellulose and enzymatic hydrolysis of cellulose were significantly affected by the polycondensation of lignin, which is effectively inhibited by the addition of green additives such as ketones or alcohols. Lignin separation was improved by developing a deep eutectic solvent treatment based on organic acid pretreatment. This work provides support for efficient cleaning of carbohydrate polymers and lignin to promote global carbon neutrality.
Collapse
Affiliation(s)
- Baojie Liu
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Lu Liu
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Baojuan Deng
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Caoxing Huang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, PR China
| | - Jiatian Zhu
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Linlin Liang
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Xinliang He
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Yuxin Wei
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Chengrong Qin
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China.
| | - Chen Liang
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Shijie Liu
- Department of Paper and Bioprocess Engineering, SUNY College of Environmental Science and Forestry,1 Forestry Drive, Syracuse, NY 13210, United States
| | - Shuangquan Yao
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, School of Light Industrial and Food Engineering, Guangxi University, Nanning 530004, PR China.
| |
Collapse
|
24
|
Physicochemical transformation and enzymatic hydrolysis promotion of reed straw after pretreatment with a new deep eutectic solvent. Carbohydr Polym 2022; 290:119472. [DOI: 10.1016/j.carbpol.2022.119472] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 04/05/2022] [Accepted: 04/06/2022] [Indexed: 01/18/2023]
|
25
|
Zhao J, Lee J, Wang D. An integrated deep eutectic solvent-ionic liquid-metal catalyst system for lignin and 5-hydroxymethylfurfural production from lignocellulosic biomass: Technoeconomic analysis. BIORESOURCE TECHNOLOGY 2022; 356:127277. [PMID: 35545207 DOI: 10.1016/j.biortech.2022.127277] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/02/2022] [Accepted: 05/04/2022] [Indexed: 06/15/2023]
Abstract
There is an increasing interest in deep eutectic solvent (DES) and ionic liquid (IL) for lignin and 5-hydroxymethylfurfural (HMF) production from lignocellulosic biomass, but their economic costs raise great concerns. In this study, the effects of DES (ZnCl2-lactic acid)/IL([EMIM]Cl)/metal catalysts (CuCl2-CrCl2) recycling time, acetone/water washing volume, HMF yield, and production capacity on total capital investment, annual operating cost, and net present value (NPV) of the refinery were elucidated. Results showed that annual operating cost was highly associated with DES/IL/metal catalysts recycling time as it determined raw materials cost. The HMF MSP of $16453/MT for the base case (ZnCl2/lactic acid recycling 5 times, acetone/water washing 5 volumes, CuCl2-CrCl2-[EMIM]Cl recycling 10 times, HMF yield of 55%, and production capacity of 100 MT/h) was achieved with an IRR of 10%. Sensitivity analysis identified the unit costs of lactic acid and [EMIM]Cl as the dominant contributors to the HMF MSP.
Collapse
Affiliation(s)
- Jikai Zhao
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA; Department of Biological and Agricultural Engineering, Kansas State University, Manhattan, KS 66506, USA.
| | - Juhee Lee
- School of Public Policy, University of California, Riverside, CA 92521, USA
| | - Donghai Wang
- Department of Biological and Agricultural Engineering, Kansas State University, Manhattan, KS 66506, USA
| |
Collapse
|
26
|
Wang Z, Yin F, Zhang XF, Zheng T, Yao J. Delignified wood filter functionalized with metal-organic frameworks for high-efficiency air filtration. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121095] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
27
|
Development of Sustainable Biorefinery Processes Applying Deep Eutectic Solvents to Agrofood Wastes. ENERGIES 2022. [DOI: 10.3390/en15114101] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The growing demand for renewable energies and the application of sustainable and economically viable biorefinery processes have increased the study and application of lignocellulosic biomass. However, due to lignocellulosic biomass recalcitrance hindering its efficient utilization, the pretreatment in the biorefinery is an essential stage for success in the process. Therefore, Deep Eutectic Solvent (DES) has emerged as a promising green pretreatment. During this study, the effect of choline chloride [ChCl]:glycerol and [ChCl]:urea on sugarcane bagasse and brewery bagasse is evaluated. Results have demonstrated that using [ChCl]:glycerol in SCB reduced about 80% and 15% for acid-soluble lignin and Klason lignin, respectively, and improved efficiency on saccharification yields, achieving conversions of 60, 80, and 100% for glucan, xylan, and arabinan, correspondingly. In the case of BSG saccharification yields, about 65% and 98% are attained for glucan and xylan, respectively, when [ChCl]:glycerol was employed. These results confirm the effectiveness and facility of DES pretreatment as a suitable method that can improve the biorefinery processes.
Collapse
|
28
|
Millán D, González-Turen F, Perez-Recabarren J, Gonzalez-Ponce C, Rezende MC, Da Costa Lopes AM. Solvent effects on the wood delignification with sustainable solvents. Int J Biol Macromol 2022; 211:490-498. [PMID: 35569683 DOI: 10.1016/j.ijbiomac.2022.05.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 04/18/2022] [Accepted: 05/04/2022] [Indexed: 11/16/2022]
Abstract
Solutions of a pure organic solvent acidified with 1% sulfuric acid, and some of their aqueous mixtures were used for lignin extraction in the Pinus radiata sawdust delignification. Organic acid solvents including acetic, lactic and citric acids as well as non-acidic compounds such as γ-valerolactone, 2-methyltetrahydrofuran, glycerol and ethylene glycol were studied. Crude lignin extractions yields (%) ranging between ca. 5-50% were obtained, from which ethylene glycol (33%), γ-valerolactone (48%) and propylene carbonate (52%) showed the greatest effectiveness. The effect of added water on the lignin extraction was investigated in mixtures of an organic solvent with a variable water content (75%w/w, 50% w/w, 25%w/w and 10% w/w) where it was observed that the yield of extraction decreased with the increased water content. Moreover, the purity of extracted lignins were analyzed by spectroscopic methods (UV and IR). Kamlet-Taft solvent polarity parameters, were determined with the solvatochromic probes 4-nitroaniline, N,N-diethyl-4-nitroaniline, Nile Red and 6-propionyl-2-N,N-dimethylaminonaphthalene (PRODAN), and then correlated to lignin extraction yields to explain the influence of the solute-solvent interactions on biomass delignification. A reasonable correlation was found between the medium polarizability-dipolarity π* and the effectiveness of the solvent mixture on the extraction of lignin wood.
Collapse
Affiliation(s)
- Daniela Millán
- Centro Integrativo de Biología y Química Aplicada (CIBQA), Universidad Bernardo O'Higgins, General Gana 1702, Santiago, Chile.
| | - Felipe González-Turen
- Centro Integrativo de Biología y Química Aplicada (CIBQA), Universidad Bernardo O'Higgins, General Gana 1702, Santiago, Chile
| | - Josei Perez-Recabarren
- Centro Integrativo de Biología y Química Aplicada (CIBQA), Universidad Bernardo O'Higgins, General Gana 1702, Santiago, Chile
| | - Christopher Gonzalez-Ponce
- Centro Integrativo de Biología y Química Aplicada (CIBQA), Universidad Bernardo O'Higgins, General Gana 1702, Santiago, Chile
| | - Marcos Caroli Rezende
- Facultad de Química y Biología, Universidad de Santiago, Av. Bernardo O'Higgins 3363, Santiago, Chile
| | - André M Da Costa Lopes
- CICECO, Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; CECOLAB, Collaborative Laboratory Towards Circular Economy, R. Nossa Senhora da Conceição, 3405-155 Oliveira do Hospital, Portugal
| |
Collapse
|
29
|
Moreira BP, Draszewski CP, Celante D, Brondani L, Lachos-Perez D, Mayer FD, Abaide ER, Castilhos F. Defatted rice bran pretreated with deep eutectic solvents and sequential use as feedstock for subcritical water hydrolysis. BIORESOURCE TECHNOLOGY 2022; 351:127063. [PMID: 35351560 DOI: 10.1016/j.biortech.2022.127063] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/22/2022] [Accepted: 03/23/2022] [Indexed: 06/14/2023]
Abstract
Deffated rice bran has potential to processing into ethanol due to its lignocellulosic composition and agricultural productivity. The composition of the pretreated deffated rice bran with Deep Eutectic Solvent was investigated aiming the production of sugars and bioproducts using subcritical water hydrolysis. Changes in the deffated rice bran composition at different pretreatment times and mixtures of deep eutectic solvent were evaluated by the derivative of thermogravimetric analysis. The pretreated deffated rice bran presented an enrichment in the content of hemicelluloses (281.0%) and delignification (59.3 %). Under the same condition of subcritical water hydrolysis (230 °C/R-100) the yield of fermentable sugars increased 2.20 times in the same study time interval (20 min) when comparing pretreated and untreated deffated rice bran.
Collapse
Affiliation(s)
- Bárbara P Moreira
- Department of Chemical Engineering, Federal University of Santa Maria, 1000 Roraima Avenue, Santa Maria, RS 97105-900, Brazil
| | - Crisleine P Draszewski
- Department of Chemical Engineering, Federal University of Santa Maria, 1000 Roraima Avenue, Santa Maria, RS 97105-900, Brazil
| | - Dian Celante
- Department of Chemical Engineering, Federal University of Santa Maria, 1000 Roraima Avenue, Santa Maria, RS 97105-900, Brazil
| | - Leoni Brondani
- Department of Chemical Engineering, Federal University of Santa Maria, 1000 Roraima Avenue, Santa Maria, RS 97105-900, Brazil
| | - Daniel Lachos-Perez
- Department of Chemical Engineering, Federal University of Santa Maria, 1000 Roraima Avenue, Santa Maria, RS 97105-900, Brazil
| | - Flávio D Mayer
- Department of Chemical Engineering, Federal University of Santa Maria, 1000 Roraima Avenue, Santa Maria, RS 97105-900, Brazil
| | - Ederson R Abaide
- Department of Chemical Engineering, Federal University of Santa Maria, 1000 Roraima Avenue, Santa Maria, RS 97105-900, Brazil
| | - Fernanda Castilhos
- Department of Chemical Engineering, Federal University of Santa Maria, 1000 Roraima Avenue, Santa Maria, RS 97105-900, Brazil.
| |
Collapse
|
30
|
Provost V, Dumarcay S, Ziegler-Devin I, Boltoeva M, Trébouet D, Villain-Gambier M. Deep eutectic solvent pretreatment of biomass: Influence of hydrogen bond donor and temperature on lignin extraction with high β-O-4 content. BIORESOURCE TECHNOLOGY 2022; 349:126837. [PMID: 35150854 DOI: 10.1016/j.biortech.2022.126837] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 02/03/2022] [Accepted: 02/05/2022] [Indexed: 06/14/2023]
Abstract
Recovering lignin with high β-O-4 content is of prime interest for further high yield depolymerization in low molecular weight phenolic compounds. Pretreatment of lignocellulosic biomass with deep eutectic solvents (DES) was studied to extract this type of tailored lignin from softwood and brewer's spent grains. In this work, choline chloride (ChCl) based DES with two different hydrogen bond donors (HBD) (lactic acid (LA) and Glycerol (Gly)), were investigated at mild temperatures (60 and 80 °C). The influence of DES pretreatment on extracted lignin molecular weight and structural characteristics was analysed. The acidity and density of DES were proved to affect lignin extraction yield and its features. The lignin characteristics (type of interunits, accessibility) were shown to impact their ability to be recovered. Acidic-DES ChCl:LA at 80 °C with woody biomass gave promising results with 78% of lignin extracted exclusively composed of G units with 61% of β-O-4 linkages with narrow molecular weights distribution.
Collapse
Affiliation(s)
- V Provost
- Université de Strasbourg, CNRS, IPHC, UMR 7178, F-67000 Strasbourg, France
| | - S Dumarcay
- Université de Lorraine, Faculté des Sciences et Techniques, Laboratoire d'Etude et de Recherche sur le Matériau Bois (LERMAB), Bld des Aiguillettes, F-54500 Vandoeuvre-les-Nancy, France
| | - I Ziegler-Devin
- Université de Lorraine, Faculté des Sciences et Techniques, Laboratoire d'Etude et de Recherche sur le Matériau Bois (LERMAB), Bld des Aiguillettes, F-54500 Vandoeuvre-les-Nancy, France
| | - M Boltoeva
- Université de Strasbourg, CNRS, IPHC, UMR 7178, F-67000 Strasbourg, France
| | - D Trébouet
- Université de Strasbourg, CNRS, IPHC, UMR 7178, F-67000 Strasbourg, France
| | - M Villain-Gambier
- Université de Strasbourg, CNRS, IPHC, UMR 7178, F-67000 Strasbourg, France.
| |
Collapse
|
31
|
Yao L, Cui P, Chen X, Yoo CG, Liu Q, Meng X, Xiong L, Ragauskas AJ, Yang H. A combination of deep eutectic solvent and ethanol pretreatment for synergistic delignification and enhanced enzymatic hydrolysis for biorefinary process. BIORESOURCE TECHNOLOGY 2022; 350:126885. [PMID: 35217157 DOI: 10.1016/j.biortech.2022.126885] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 02/16/2022] [Accepted: 02/17/2022] [Indexed: 06/14/2023]
Abstract
A novel pretreatment system containing deep eutectic solvents and ethanol (DES-E) for synergistic carbohydrate conversion and delignification was reported in this study. The DES-E pretreatment resulted in an enhanced glucose yield compared to individual DES and ethanol pretreatment for the three tested biomass, including Broussonetia papyrifera, corn stover and pine. To further explore the delignification mechanism, the solubilized lignin and residual lignin from Broussonetia papyrifera was recovered and extracted, then thoroughly characterized. The highest total OH content was found in the DES-E solubilized lignin, which could be used as antioxidant. The presence of ethanol in pretreatment liquor could protect the β-O-4 substructure from breakage and reduce lignin condensation, which favors the subsequent enzymatic hydrolysis. Comparable glucose yield and delignification performance was achieved by recycled DES. DES-E pretreatment offers a promising method for lignin isolation and cellulose digestibility improvement simultaneously.
Collapse
Affiliation(s)
- Lan Yao
- Key Laboratory of Fermentation Engineering (Ministry of Education), College of Bioengineering, Hubei University of Technology, Wuhan 430068, PR China; Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan 430068, PR China
| | - Pingping Cui
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan 430068, PR China
| | - Xiong Chen
- Key Laboratory of Fermentation Engineering (Ministry of Education), College of Bioengineering, Hubei University of Technology, Wuhan 430068, PR China
| | - Chang Geun Yoo
- Department of Chemical Engineering, State University of New York, College of Environmental Science and Forestry, Syracuse, NY 13210, USA; The Michael M. Szwarc Polymer Research Institute, Syracuse, NY 13210, USA
| | - Qianting Liu
- Key Laboratory of Fermentation Engineering (Ministry of Education), College of Bioengineering, Hubei University of Technology, Wuhan 430068, PR China
| | - Xianzhi Meng
- Department of Chemical and Biomolecular Engineering, University of Tennessee Knoxville, Knoxville, TN 37996-2200, USA
| | - Long Xiong
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan 430068, PR China
| | - Arthur J Ragauskas
- Department of Chemical and Biomolecular Engineering, University of Tennessee Knoxville, Knoxville, TN 37996-2200, USA; Joint Institute for Biological Sciences, Biosciences Division, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN 37831, USA; Department of Forestry, Wildlife, and Fisheries, Center for Renewable Carbon, The University of Tennessee Knoxville, Institute of Agriculture, Knoxville, TN 37996-2200, USA
| | - Haitao Yang
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan 430068, PR China; State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, PR China.
| |
Collapse
|
32
|
Jing Y, Li F, Li Y, Jiang D, Lu C, Zhang Z, Zhang Q. Biohydrogen production by deep eutectic solvent delignification-driven enzymatic hydrolysis and photo-fermentation: Effect of liquid-solid ratio. BIORESOURCE TECHNOLOGY 2022; 349:126867. [PMID: 35183719 DOI: 10.1016/j.biortech.2022.126867] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 02/13/2022] [Accepted: 02/15/2022] [Indexed: 06/14/2023]
Abstract
Deep eutectic solvent (DES), a new green solvent, was used to pretreat corncob to enhance biohydrogen production. As a result of the pretreatment, lignin was effectively removed, and the maximum delignification efficiency of 83.12% was achieved. Moreover, the contents of cellulose in the pretreated corncob significantly increased. DES pretreatment effect improved with increasing liquid-solid ratio. The pretreated corncob's enzymatic saccharification activity and hydrogen production were promoted due to the lower content of lignin. The best result was observed at a ratio of 25:1 (DES:corncob, g/g), in which the reducing sugar concentration (53.91 g/L) and the hydrogen yield (151 mL/g) was 6.8 and 3.1 times than that of untreated corncob, respectively. In addition, the lag time of hydrogen production was obviously shortened to 16.53 h due to the utilization of abundant available fermentable sugars, which accelerated hydrogen production.
Collapse
Affiliation(s)
- Yanyan Jing
- Key Laboratory of New Materials and Facilities for Rural Renew. Energ, MOA of China, Henan Agricultural University, Zhengzhou 450002, China
| | - Fang Li
- Key Laboratory of New Materials and Facilities for Rural Renew. Energ, MOA of China, Henan Agricultural University, Zhengzhou 450002, China
| | - Yameng Li
- Key Laboratory of New Materials and Facilities for Rural Renew. Energ, MOA of China, Henan Agricultural University, Zhengzhou 450002, China
| | - Danping Jiang
- Key Laboratory of New Materials and Facilities for Rural Renew. Energ, MOA of China, Henan Agricultural University, Zhengzhou 450002, China
| | - Chaoyang Lu
- Key Laboratory of New Materials and Facilities for Rural Renew. Energ, MOA of China, Henan Agricultural University, Zhengzhou 450002, China
| | - Zhiping Zhang
- Key Laboratory of New Materials and Facilities for Rural Renew. Energ, MOA of China, Henan Agricultural University, Zhengzhou 450002, China
| | - Quanguo Zhang
- Key Laboratory of New Materials and Facilities for Rural Renew. Energ, MOA of China, Henan Agricultural University, Zhengzhou 450002, China.
| |
Collapse
|
33
|
Bai Y, Zhang XF, Wang Z, Zheng T, Yao J. Deep eutectic solvent with bifunctional Brønsted-Lewis acids for highly efficient lignocellulose fractionation. BIORESOURCE TECHNOLOGY 2022; 347:126723. [PMID: 35063623 DOI: 10.1016/j.biortech.2022.126723] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 06/14/2023]
Abstract
Green and low cost deep eutectic solvents (DESs) are promising to replace the solid acids and ionic liquids in biomass fractionation process. To enhance the lignocellulose pretreatment efficiency, an acidic DES that composed of Brønsted acid (ZnCl2) as hydrogen bond acceptor and Lewis acid (lactic acid) as hydrogen bond donator was designed. This bifunctional DES was used for the extraction of lignin from poplar sawdust. Under the optimal pretreatment condition, the ZnCl2-lactic acid DES could recover 95.2 wt% of lignin with a purity of 92.1%. The recovered lignin demonstrated a low polydispersity of 1.67 and small amount of β-aryl-ethers. Moreover, the acidic DES had a good recyclability and reusability. Such performance was attributed to the presence of bifunctional acid sites, which help selectively cleave lignin-carbohydrate complex linkages. The acidity and polarity of Brønsted acid can be modulated by the Lewis acid, thus synergistically promote the lignin extraction and production.
Collapse
Affiliation(s)
- Yunhua Bai
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Province Key Laboratory of Green Biomass-based Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Xiong-Fei Zhang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Province Key Laboratory of Green Biomass-based Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Zhongguo Wang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Province Key Laboratory of Green Biomass-based Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Tianran Zheng
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Province Key Laboratory of Green Biomass-based Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Jianfeng Yao
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jiangsu Province Key Laboratory of Green Biomass-based Fuels and Chemicals, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China.
| |
Collapse
|
34
|
Strengthening Cellulose Nanopaper via Deep Eutectic Solvent and Ultrasound-Induced Surface Disordering of Nanofibers. Polymers (Basel) 2021; 14:polym14010078. [PMID: 35012101 PMCID: PMC8747671 DOI: 10.3390/polym14010078] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 12/15/2021] [Accepted: 12/23/2021] [Indexed: 11/17/2022] Open
Abstract
The route for the preparation of cellulose nanofiber dispersions from bacterial cellulose using ethylene glycol- or glycerol-based deep eutectic solvents (DES) is demonstrated. Choline chloride was used as a hydrogen bond acceptor and the effect of the combined influence of DES treatment and ultrasound on the thermal and mechanical properties of bacterial cellulose nanofibers (BC-NFs) is demonstrated. It was found that the maximal Young’s modulus (9.2 GPa) is achieved for samples prepared using a combination of ethylene glycol-based DES and ultrasound treatment. Samples prepared with glycerol-based DES combined with ultrasound exhibit the maximal strength (132 MPa). Results on the mechanical properties are discussed based on the structural investigations that were performed using FTIR, Raman, WAXD, SEM and AFM measurements, as well as the determination of the degree of polymerization and the density of BC-NF packing during drying with the formation of paper. We propose that the disordering of the BC-NF surface structure along with the preservation of high crystallinity bulk are the key factors leading to the improved mechanical and thermal characteristics of prepared BC-NF-based papers.
Collapse
|
35
|
Wang W, Lee DJ. Lignocellulosic biomass pretreatment by deep eutectic solvents on lignin extraction and saccharification enhancement: A review. BIORESOURCE TECHNOLOGY 2021; 339:125587. [PMID: 34303094 DOI: 10.1016/j.biortech.2021.125587] [Citation(s) in RCA: 91] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/11/2021] [Accepted: 07/13/2021] [Indexed: 06/13/2023]
Abstract
Biomass recalcitrance hinders efficient utilization of lignocellulosic biomass, making pretreatment process a crucial step for successful biorefinery process. Pretreatment processes have been developed for processing biomass, while technical obstacles including intensive energy requirement, high operational cost, equipment corrosions resulted from currently applied techniques promote the development of new pretreatment process for biomass. The deep eutectic solvent (DES) has been recognized as a promising solvent for biomass pretreatment, although the DES application toward biomass is still in its nascent stage. This review summarized the current researches using DES for biomass pretreatment, focusing particularly on lignin extraction and saccharification enhancement of lignocellulosic biomass. The mechanisms for biomass fractionation using DES as agents are introduced. Prospect and challenge were outlined.
Collapse
Affiliation(s)
- Wei Wang
- Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan; Chemistry Division, Institute of Nuclear Energy Research, Taoyuan, Taiwan
| | - Duu-Jong Lee
- Department of Chemical Engineering, National Taiwan University, Taipei, Taiwan; Department of Mechanical Engineering, City University of Hong Kong, Kowloon Tong, Hong Kong.
| |
Collapse
|
36
|
Liang X, Zhu Y, Qi B, Li S, Luo J, Wan Y. Structure-property-performance relationships of lactic acid-based deep eutectic solvents with different hydrogen bond acceptors for corn stover pretreatment. BIORESOURCE TECHNOLOGY 2021; 336:125312. [PMID: 34044243 DOI: 10.1016/j.biortech.2021.125312] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/14/2021] [Accepted: 05/15/2021] [Indexed: 06/12/2023]
Abstract
Herein, ten types of lactic acid-based deep eutectic solvents (DESs) with differently structured hydrogen bond acceptors (HBAs) were used for corn stover pretreatment. Among the tested DESs, those composed of HBAs with short alkyl chain were more effective to remove lignin and xylan, resulting in higher enzymatic digestion of the pretreated solids than their counterparts with long alky chain. Also, functional groups of HBAs demonstrated significant effects on biomass deconstruction. In order to interpret the different pretreatment performance of the tested DESs, Kamlet-Taft solvent polarity parameters of the tested DESs were correlated to their lignocellulose pretreatment performance. It was found that hydrogen bond acidity (Kamlet-Taft α parameter) had strong positive relationships with pretreatment efficacy of the studied DESs. These findings not only clarified the structure-property-performance relationships of the DESs, but also provided novel insights into design and selection of DESs for lignocellulose pretreatment.
Collapse
Affiliation(s)
- Xinquan Liang
- School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, PR China
| | - Yuan Zhu
- School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, PR China; State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Benkun Qi
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China.
| | - Shiqian Li
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Jianquan Luo
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Yinhua Wan
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| |
Collapse
|
37
|
Pérez AD, Fiskari J, Schuur B. Delignification of Low-Energy Mechanical Pulp (Asplund Fibers) in a Deep Eutectic Solvent System of Choline Chloride and Lactic Acid. Front Chem 2021; 9:688291. [PMID: 34178947 PMCID: PMC8219853 DOI: 10.3389/fchem.2021.688291] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 05/24/2021] [Indexed: 11/30/2022] Open
Abstract
Deep eutectic solvents (DESs) are considered as a green and environmentally benign solvent class for various applications, including delignification of biomass. One of the major challenges in the delignification of biomass by DES is attributed to the limitations in mass transfer. By subjecting wood chips to a low-energy mechanical refining, i.e., the Asplund process, the accessible surface area increases greatly, which in turn improves the mass transfer and increases the reaction rate. In this research, the DES delignification of Asplund fibers made of Norway spruce was studied as a strategy to produce papermaking fibers under mild conditions. A DES consisting of lactic acid and choline chloride was used due to its proven performance in delignification. Various operational conditions, such as temperature, time, DES-to-wood ratio, and the type of stirring were studied. A novel parameter, Q, allowed to evaluate the impact of the operational conditions on the quality of the pulp in terms of delignification degree and fiber length. The results showed that cooking temperature had the most significant effect on the pulp quality. Additionally, it was observed that cooking times between 30 and 45 min result in a pulp yield of about 50%, while fibers have a lignin content of about 14% and a fiber length of 0.6 mm. These results demonstrate that it is possible to obtain fibers of relatively good quality from DES delignification using Asplund fibers as the starting material.
Collapse
Affiliation(s)
- Alan D Pérez
- Sustainable Process Technology Group, Faculty of Science and Technology, University of Twente, Enschede, Netherlands
| | - Juha Fiskari
- Fibre Science and Communication Network, Mid Sweden University, Sundsvall, Sweden
| | - Boelo Schuur
- Sustainable Process Technology Group, Faculty of Science and Technology, University of Twente, Enschede, Netherlands
| |
Collapse
|
38
|
Yu P, Li Q, Feng Y, Ma S, Chen Y, Li G. Extraction and Analysis of Six Effective Components in Glycyrrhiza uralensis Fisch by Deep Eutectic Solvents (DES) Combined with Quantitative Analysis of Multi-Components by Single Marker (QAMS) Method. Molecules 2021; 26:1310. [PMID: 33804392 PMCID: PMC7957616 DOI: 10.3390/molecules26051310] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 02/18/2021] [Accepted: 02/25/2021] [Indexed: 11/16/2022] Open
Abstract
Deep eutectic solvents (DESs) are green organic solvents that have broad prospects in the extraction of effective components of traditional Chinese medicine. This work employed the quantitative analysis of multi-components by a single marker (QAMS) method to quantitatively determine the six effective components of glycyrrhizic acid, liquiritin, isoliquiritin apioside, liquiritigenin, isoliquiritin, and glycyrrhetinic acid in Glycyrrhiza uralensis, which was used for comprehensive evaluation of the optimal extraction process by DESs. First, Choline Chloride: Lactic Acid (ChCl-LA, molar ratio 1:1) was selected as the most suitable DES by comparing the extraction yields of different DESs. Second, the extraction protocol was investigated by extraction time, extraction temperature, liquid-to-material ratio, molar ratio, and ultrasonic power. The Box-Behnken design (BBD) combined with response surface methodology (RSM) was used to investigate the optimal DES conditions. The result showed that the best DES system was 1.3-butanediol/choline chloride (ChCl) with the molar ratio of 4:1. The optimal extraction process of licorice was 20 mL/g, the water content was 30%, and the extraction time was 41 min. The comprehensive impact factor (z) was 0.92. At the same time, it was found that the microstructure of the residue extracted by the eutectic solvent was more severely damaged than the residue after the traditional solvent extraction through observation under an electron microscope. The DES has the characteristics of high efficiency and rapidity as an extraction solution.
Collapse
Affiliation(s)
- Ping Yu
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China; (P.Y.); (Y.F.); (S.M.); (Y.C.)
- Gansu Provincial Key Laboratory of Aridland Crop Science, Lanzhou 730070, China;
| | - Qian Li
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China; (P.Y.); (Y.F.); (S.M.); (Y.C.)
- Gansu Provincial Key Laboratory of Aridland Crop Science, Lanzhou 730070, China;
| | - Yanmei Feng
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China; (P.Y.); (Y.F.); (S.M.); (Y.C.)
- Gansu Provincial Key Laboratory of Aridland Crop Science, Lanzhou 730070, China;
| | - Sinan Ma
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China; (P.Y.); (Y.F.); (S.M.); (Y.C.)
- Gansu Provincial Key Laboratory of Aridland Crop Science, Lanzhou 730070, China;
| | - Yuying Chen
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China; (P.Y.); (Y.F.); (S.M.); (Y.C.)
- Gansu Provincial Key Laboratory of Aridland Crop Science, Lanzhou 730070, China;
| | - Guichen Li
- Gansu Provincial Key Laboratory of Aridland Crop Science, Lanzhou 730070, China;
| |
Collapse
|