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Lu Z, Chen M, Jin T, Nian B, Hu Y. Immobilization of Candida antarctica lipase B on ILs modified CNTs with different chain lengths: Regulation of substrate tunnel "Leucine gating". Int J Biol Macromol 2023; 248:125894. [PMID: 37479200 DOI: 10.1016/j.ijbiomac.2023.125894] [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: 05/19/2023] [Revised: 07/13/2023] [Accepted: 07/17/2023] [Indexed: 07/23/2023]
Abstract
Ionic liquids (ILs) have been widely used as chemical modifiers to modify the carriers and thus improve the efficiency, activity and stability of the enzymes. However, as thousands of ILs have been found up to date, it's a huge work for screening and designing suitable ILs for immobilization of enzymes. Moreover, the mechanism of improving enzymes catalytic performance is still remain ambiguous. Thus, this study investigated the impact of ILs with different chain lengths on the enzymatic properties of Candida antarctica lipase B (CALB). Molecular dynamics simulations were employed to examine the interaction between ILs modified CNTs and CALB, as well as their effects on CALB's structure. The results revealed that ILs with different chain lengths significantly influenced the absorption orientation of CALB. Tunnel analysis identified a key role for Leu278 in regulating the open or closed state of Tunnel 2 during CALB's catalytic cycle. The weak interaction analysis demonstrated that ILs with suitable chain lengths provided spatial freedom and formed strong interactions with CNTs and ILs (vdW and hbond). This led to a conformational flip of Leu278, stabilizing the open state of Tunnel 2 and improving the activity and stability of immobilized CALB. This study provides novel insights into the design of new green modifiers to modulate carrier performance and obtain immobilized enzymes with better performance, and establishes a theoretical basis for the design and selection of modifiers for ILs in future work.
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Affiliation(s)
- Zeping Lu
- State Key Laboratory of Materials-Oriented Chemical Engineering, School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, China
| | - Mei Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, China
| | - Tongtong Jin
- State Key Laboratory of Materials-Oriented Chemical Engineering, School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, China
| | - Binbin Nian
- State Key Laboratory of Materials-Oriented Chemical Engineering, School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, China.
| | - Yi Hu
- State Key Laboratory of Materials-Oriented Chemical Engineering, School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 210009, China.
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Applications of ionic liquids for the biochemical transformation of lignocellulosic biomass into biofuels and biochemicals: A critical review. Biochem Eng J 2023. [DOI: 10.1016/j.bej.2023.108850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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3
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Souli I, Liu X, Lendormi T, Chaira N, Ferchichi A, Lanoisellé JL. Anaerobic digestion of waste Tunisian date ( Phoenix dactylifera L.): effect of biochemical composition of pulp and seeds from six varieties. ENVIRONMENTAL TECHNOLOGY 2022; 43:617-629. [PMID: 32677543 DOI: 10.1080/09593330.2020.1797900] [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: 02/21/2020] [Accepted: 07/08/2020] [Indexed: 06/11/2023]
Abstract
Large amounts of secondary date waste (pulp and seeds) are produced and discarded in Tunisia without proper valorisation methods. To study the possibility of valorising different varieties of Tunisian date waste (pulp and seeds) via anaerobic digestion, batch biochemical methane potential (BMP) tests were carried out under mesophilic temperature. The bio-methane production curves were fitted to the model of modified Gompertz in search of the kinetic parameters. The bio-chemical characterisation of the substrates from different varieties (total and volatile solids, COD and contents in carbohydrates, proteins, lipids, polyphenols) was realised. Principal component analysis (PCA) was used to investigate the correlations between the model parameters and biochemical variables. Results show that the biochemical compositions of date pulp and seeds strongly depend on the varieties. The BMP are in the range of 0.295-0.345 and 0.267-0.327 Nm3 CH4·kg COD-1 for pulp and seeds respectively, resulting from the significant biochemical variance among the varieties. The BMP of date seeds was significantly correlated with their VS/TS ratio, carbohydrate and protein contents (p < 0.05). For the pulp, significant correlation was found between BMP, carbohydrate and lipid contents. PCA shows that certain varieties (like pulp and seeds of Deglet Nour and seeds of Bejou) are most suitable for being valorised by anaerobic digestion. The most suitable date varieties for this innovative approach were revealed. This research provided useful knowledge for bioconversion of waste date pulp and seeds to biomass energy.
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Affiliation(s)
- Ikbel Souli
- Faculty of Sciences of Tunis, Department of Biology, University of Tunis El Manar, El-Manar II-Tunis, Tunisia
- UMR CNRS 6027, IRDL, Univ. Bretagne Sud, Pontivy, France
- Aridlands and Oases Cropping Laboratory, Institute of Arid Regions (IRA), Medenine, Tunisia
| | - Xiaojun Liu
- UMR CNRS 6027, IRDL, Univ. Bretagne Sud, Pontivy, France
| | | | - Nizar Chaira
- Aridlands and Oases Cropping Laboratory, Institute of Arid Regions (IRA), Medenine, Tunisia
| | - Ali Ferchichi
- National Institute of Agronomic of Tunisia (INAT), Tunis, Tunisia
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Millati R, Wikandari R, Ariyanto T, Putri RU, Taherzadeh MJ. Pretreatment technologies for anaerobic digestion of lignocelluloses and toxic feedstocks. BIORESOURCE TECHNOLOGY 2020; 304:122998. [PMID: 32107151 DOI: 10.1016/j.biortech.2020.122998] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 02/04/2020] [Accepted: 02/08/2020] [Indexed: 05/12/2023]
Abstract
Several feedstocks for anaerobic digestion (AD) have challenges that hamper the success of AD with their low accessible surface area, biomass recalcitrance, and the presence of natural inhibitors. This paper presents different types of pretreatment to address those individual challenges and how they contribute to facilitate AD. Organosolv and ionic liquid pretreatments are effective to remove lignin without a significant defect on lignin structures. To deal with accessible surface area and crystallinity, comminution, steam explosion, pretreatment using N-methyl-morpholine-N-oxide methods are suggested. Moreover, solid extraction, simple aeration, and biological treatments are capable in removing natural inhibitors. Up to date, methods like comminution, thermal process, and grinding are more preferable to be scaled-up.
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Affiliation(s)
- Ria Millati
- Department of Food and Agricultural Product Technology, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia.
| | - Rachma Wikandari
- Department of Food and Agricultural Product Technology, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Teguh Ariyanto
- Department of Chemical Engineering, Faculty of Engineering, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Rininta Utami Putri
- Department of Food and Agricultural Product Technology, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
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Pérez-Pimienta JA, Icaza-Herrera JPA, Méndez-Acosta HO, González-Álvarez V, Méndoza-Pérez JA, Arreola-Vargas J. Bioderived ionic liquid-based pretreatment enhances methane production from Agave tequilana bagasse. RSC Adv 2020; 10:14025-14032. [PMID: 35498454 PMCID: PMC9051612 DOI: 10.1039/d0ra01849j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 03/30/2020] [Indexed: 11/24/2022] Open
Abstract
In recent years, bioderived ionic liquids have gained attention as a new promising approach for lignocellulosic biomass pretreatment. In this work, Agave tequilana bagasse (ATB), an attractive bioenergy feedstock in Mexico, was pretreated with a bioderived ionic liquid (cholinium lysinate) for the first time. Optimization of the pretreatment conditions, in-depth biomass characterization and methane generation via anaerobic digestion are the main contributions of this work. The results indicated optimized pretreatment conditions of 124 °C, 205 min and 20% solids loading by applying a central composite design. The optimized pretreated ATB was able to produce an elevated sugar yield of 51.4 g total sugars per g ATB due to their high delignification (45.4%) and changes in their chemical linkages although an increase in cellulose crystallinity was found (0.51 untreated vs. 0.62 pretreated). Finally, the mass balance showed that 38.2 kg glucose and 13.1 kg xylose were converted into 12.5 kg of methane per 100 kg of untreated ATB, representing 86% of the theoretical methane yield and evidencing the potential of this biorefinery scheme. Methane conversion is enhanced by optimized bioderived ionic-liquid pretreated Agave tequilana bagasse with in-depth biomass characterization analysis.![]()
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Affiliation(s)
| | - José P A Icaza-Herrera
- Departamento de Ingeniería Química, CUCEI-Universidad de Guadalajara Guadalajara Jalisco Mexico
| | - Hugo O Méndez-Acosta
- Departamento de Ingeniería Química, CUCEI-Universidad de Guadalajara Guadalajara Jalisco Mexico
| | - Victor González-Álvarez
- Departamento de Ingeniería Química, CUCEI-Universidad de Guadalajara Guadalajara Jalisco Mexico
| | - Jorge A Méndoza-Pérez
- Department of Engineering in Environmental Systems, Instituto Politécnico Nacional Mexico City Mexico
| | - Jorge Arreola-Vargas
- División de Procesos Industriales, Universidad Tecnológica de Jalisco Guadalajara Jalisco Mexico
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Raes SMT, Jourdin L, Carlucci L, van den Bruinhorst A, Strik DPBTB, Buisman CJN. Water-Based Synthesis of Hydrophobic Ionic Liquids [N 8888][oleate] and [P 666,14][oleate] and their Bioprocess Compatibility. ChemistryOpen 2018; 7:878-884. [PMID: 30410852 PMCID: PMC6217098 DOI: 10.1002/open.201800187] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Indexed: 11/16/2022] Open
Abstract
The conversion of organic waste streams into carboxylic acids as renewable feedstocks results in relatively dilute aqueous streams. Carboxylic acids can be recovered from such streams by using liquid-liquid extraction. Hydrophobic ionic liquids (ILs) are novel extractants that can be used for carboxylic acid recovery. To integrate these ILs as in situ extractants in several biotechnological applications, the IL must be compatible with the bioprocesses. Herein the ILs [P666,14][oleate] and [N8888][oleate] were synthesized in water and their bioprocess compatibility was assessed by temporary exposure to an aqueous phase that contained methanogenic granular sludge. After transfer of the sludge into fresh medium, [P666,14][oleate]-exposed granules were completely inhibited. Granules exposed to [N8888][oleate] sustained anaerobic digestion activity, albeit moderately reduced. The IL contaminants, bromide (5-500 ppm) and oleate (10-4000 ppm), were shown not to inhibit the methanogenic conversion of acetate. [P666,14] was identified as a bioprocess-incompatible component. However, our results showed that [N8888][oleate] was bioprocess compatible and, therefore, has potential applications in bioprocesses.
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Affiliation(s)
- Sanne M. T. Raes
- Sub-department of Environmental TechnologyWageningen University & ResearchAxis-Z, Bornse Weilanden 96708 WGWageningenThe Netherlands
| | - Ludovic Jourdin
- Sub-department of Environmental TechnologyWageningen University & ResearchAxis-Z, Bornse Weilanden 96708 WGWageningenThe Netherlands
| | - Livio Carlucci
- Sub-department of Environmental TechnologyWageningen University & ResearchAxis-Z, Bornse Weilanden 96708 WGWageningenThe Netherlands
| | - Adriaan van den Bruinhorst
- Laboratory of Physical ChemistryDepartment of Chemical Engineering and ChemistryEindhoven University of TechnologyP.O. Box 513, 5600MBEindhovenThe Netherlands
| | - David P. B. T. B. Strik
- Sub-department of Environmental TechnologyWageningen University & ResearchAxis-Z, Bornse Weilanden 96708 WGWageningenThe Netherlands
| | - Cees J. N. Buisman
- Sub-department of Environmental TechnologyWageningen University & ResearchAxis-Z, Bornse Weilanden 96708 WGWageningenThe Netherlands
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Padrino B, Lara-Serrano M, Morales-delaRosa S, Campos-Martín JM, Fierro JLG, Martínez F, Melero JA, Puyol D. Resource Recovery Potential From Lignocellulosic Feedstock Upon Lysis With Ionic Liquids. Front Bioeng Biotechnol 2018; 6:119. [PMID: 30234105 PMCID: PMC6134079 DOI: 10.3389/fbioe.2018.00119] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Accepted: 08/10/2018] [Indexed: 11/15/2022] Open
Abstract
Lignocellulosic residues from energy crops offer a high potential to recover bioproducts and biofuels that can be used as raw matter for agriculture activities within a circular economy framework. Anaerobic digestion (AD) is a well-established driver to convert these residues into energy and bioproducts. However, AD of lignocellulosic matter is slow and yields low methane potential, and therefore several pre-treatment methods have been proposed to increase the energy yield of this process. Hereby, we have assessed the pre-treatment of lignocellulosic biomass (barley straw) with the ionic liquid (IL) 1-ethyl-3-methylimidazolium acetate and its effect on the biochemical methane potential (BMP). The BMP of the residue was evaluated at different inoculum to substrate (I/S) ratios and working under meso and thermophilic conditions. Solids destruction upon AD is highly enhanced by the IL-pretreatment. This also resulted in a higher BMP, both in mesophilic as well as thermophilic conditions. At the optimum I/S ratio of 2:1 (dried weight, dw), the BMP of the IL-pre-treated feedstock increased 28 and 80% for 35 days of thermophilic and mesophilic AD, respectively, as compared to the fresh feedstock, achieving values of 364 and 412 LCH4/kgTS. We also explored the effect of this pretreatment on the phosphorus recovery potential from the digestate upon release from the AD process. Thermophilic anaerobic digestion of IL-pre-treated biomass provided the highest P recovery potential from lignocellulosic residues (close to 100% of the theoretical P content of the lignocellulosic feedstock). Therefore, the pretreatment of lignocellulosic feedstock with IL before AD is a promising platform to obtain bioenergy and recover P to be regained for the agriculture sector.
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Affiliation(s)
- Beatriz Padrino
- Group of Chemical and Environmental Engineering, University Rey Juan Carlos, Mostoles, Spain
| | - Marta Lara-Serrano
- Sustainable Energy and Chemistry Group, Instituto de Catalisis y Petroleoquimica, CSIC, Madrid, Spain
| | - Silvia Morales-delaRosa
- Sustainable Energy and Chemistry Group, Instituto de Catalisis y Petroleoquimica, CSIC, Madrid, Spain
| | - José M Campos-Martín
- Sustainable Energy and Chemistry Group, Instituto de Catalisis y Petroleoquimica, CSIC, Madrid, Spain
| | - José Luis García Fierro
- Sustainable Energy and Chemistry Group, Instituto de Catalisis y Petroleoquimica, CSIC, Madrid, Spain
| | - Fernando Martínez
- Group of Chemical and Environmental Engineering, University Rey Juan Carlos, Mostoles, Spain
| | - Juan Antonio Melero
- Group of Chemical and Environmental Engineering, University Rey Juan Carlos, Mostoles, Spain
| | - Daniel Puyol
- Group of Chemical and Environmental Engineering, University Rey Juan Carlos, Mostoles, Spain
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