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Lin CK, Chen BY, Ting JU, Rogio KGG, Tsai PW, Liu YC. Deciphering Houttuynia cordata extract as electron shuttles with anti-COVID-19 activity and its performance in microbial fuel cells. J Taiwan Inst Chem Eng 2023; 145:104838. [PMID: 37051508 PMCID: PMC10068517 DOI: 10.1016/j.jtice.2023.104838] [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: 02/10/2023] [Revised: 03/14/2023] [Accepted: 03/21/2023] [Indexed: 04/05/2023]
Abstract
Background Traditional herbal medicines usually contain electron shuttle (ES)-like structures compounds which are potential candidates for antiviral compounds selection. Houttuynia cordata is applied as a biomaterial to decipher its potential applications in bioenergy extraction in microbial fuel cells (MFCs) and anti-COVID-19 via molecular docking evaluation. Methods H. cordata leaves extracts by water and 60% ethanol solvent were analyzed for total polyphenols, antioxidant activity, cyclic voltammetry (CV), and MFCs. The bioactive compounds of H. cordata leaves extracts were assayed via LC/MS analysis. Identification of the marker substances for potential antiviral activity using a molecular docking model was provided. Significant findings 60% ethanol extract exhibits the highest total polyphenols and antioxidant activity compared with water extracts. Bioenergy extraction in MFCs showed that 60% ethanol extracts could give 1.76-fold more power generation compared to the blank. Flavonoids and their sugar-to-glycan ratios increased after CV scanning and they are expected to be effective ES substances. Quercitrin, from the H. cordata extract that shares an ES-like structure, was found to exhibit strong binding affinities towards ACE2 and RdRp. This indicated the potential of H. cordata leaves as a promising antiviral herb.
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Affiliation(s)
- Chia-Kai Lin
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Bor-Yann Chen
- Department of Chemical and Materials Engineering, National I-Lan University, I-Lan 260, Taiwan
| | - Jasmine U Ting
- Department of Chemistry, College of Science, De La Salle University, Metro Manila 1004, Philippines
| | - Kristian Gil G Rogio
- School of Chemical, Biological, and Materials Engineering and Sciences, Mapúa University, Metro Manila 1002, Philippines
| | - Po-Wei Tsai
- Department of Medical Science Industries, College of Health Sciences, Chang Jung Christian University, Tainan 711, Taiwan
| | - Yung-Chuan Liu
- Department of Chemical Engineering, National Chung Hsing University, Taichung 402, Taiwan
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Hsueh CC, Roxas TJ, Chan YH, Juan CN, Tayo LL, Chen YY, Wu YC, Hua KF, Tsai PW, Sun SY, Chen BY. Feasibility study of value-added production from onion peel agricultural wastes for circular economy. J Taiwan Inst Chem Eng 2023. [DOI: 10.1016/j.jtice.2023.104851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
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3
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Behnia S, Fathizadeh S, Hosseinnezhad P, Nemati F. Modulation of a DNA-based photodetector: Virus-Chromophore hybridization. Chem Phys 2023. [DOI: 10.1016/j.chemphys.2023.111899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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Li T, Song HL, Xu H, Yang XL, Chen QL. Biological detoxification and decolorization enhancement of azo dye by introducing natural electron mediators in MFCs. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:125864. [PMID: 34492812 DOI: 10.1016/j.jhazmat.2021.125864] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 04/04/2021] [Accepted: 04/08/2021] [Indexed: 06/13/2023]
Abstract
Reactive red 2 (RR2) is a highly recalcitrant and toxic azo dye that can cause the collapse of biological treatment system. Although MFC can decolorize RR2 effectively, its performance is still inevitably affected by toxicity. Anthraquinone can enhance MFCs' performance through mediating electron transfer. In this study, an anthraquinone-rich natural plants (B.rheum (Rheum offcinale Baill)) was extracted and then added to MFCs. The optimal dosage was selected and the enhanced effects were investigated. The results showed that adding 5%(V/V) extract resulted in the optimal performance elevation of MFC. When 5% extract was added together with RR2, 15.63% and 1.33-fold improvement in RR2 decolorization efficiency and rate were achieved compared with the control group. Meanwhile, higher power density (2.75 W/m3), coulombic efficiency (6.45%), and lower internal resistance (233.69 Ω) were also observed when 5% B.rheum extract and RR2 were added. B.rheum extract in MFCs enhanced microbial activity and enriched the dye-degrading microorganisms, such as Enterobacter, Raoultella, Comamonas and Shinella. B.rheum extract acts as "antidote" in alleviating the biotoxicity of RR2 was firstly illustrated in this study. The results provided a new strategy for using plant-source electron mediators to simultaneously improve biological detoxification, bioelectricity generation and dye decolorization in bioelectrochemical system.
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Affiliation(s)
- Tao Li
- School of Civil Engineering, Southeast University, Nanjing 211189, China.
| | - Hai-Liang Song
- School of Environment, Nanjing Normal University, Jiangsu Engineering Lab of Water and Soil Eco-Remediation, Nanjing 210023, China.
| | - Han Xu
- School of Civil Engineering, Southeast University, Nanjing 211189, China.
| | - Xiao-Li Yang
- School of Civil Engineering, Southeast University, Nanjing 211189, China.
| | - Qiao-Ling Chen
- School of Civil Engineering, Southeast University, Nanjing 211189, China.
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Plant secondary metabolites induced electron flux in microbial fuel cell: investigation from laboratory-to-field scale. Sci Rep 2020; 10:17185. [PMID: 33057031 PMCID: PMC7560832 DOI: 10.1038/s41598-020-74092-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 09/11/2020] [Indexed: 02/08/2023] Open
Abstract
Wastewater treatment coupled with electricity recovery in microbial fuel cell (MFC) prefer mixed anaerobic sludge as inoculum in anodic chamber than pure stain of electroactive bacteria (EAB), due to robustness and syntrophic association. Genetic modification is difficult to adopt for mixed sludge microbes for enhancing power production of MFC. Hence, we demonstrated use of eco-friendly plant secondary metabolites (PSM) with sub-lethal concentrations to enhance the rate of extracellular electron transfer between EAB and anode and validated it in both bench-scale as well as pilot-scale MFCs. The PSMs contain tannin, saponin and essential oils, which are having electron shuttling properties and their addition to microbes can cause alteration in cell morphology, electroactive behaviour and shifting in microbial population dynamics depending upon concentrations and types of PSM used. Improvement of 2.1-times and 3.8-times in power densities was observed in two different MFCs inoculated with Eucalyptus-extract pre-treated mixed anaerobic sludge and pure culture of Pseudomonas aeruginosa, respectively, as compared to respective control MFCs operated without adding Eucalyptus-extract to inoculum. When Eucalyptus-extract-dose was spiked to anodic chamber (125 l) of pilot-scale MFC, treating septage, the current production was dramatically improved. Thus, PSM-dosing to inoculum holds exciting promise for increasing electricity production of field-scale MFCs.
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6
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Optimal stimulation of Houttuynia cordata herbal extract as electron shuttle for bioenergy extraction in microbial fuel cells. J Taiwan Inst Chem Eng 2020. [DOI: 10.1016/j.jtice.2020.09.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Zhao C, Shang D, Zou Y, Du Y, Wang Q, Xu F, Ren L, Kong Q. Changes in electricity production and microbial community evolution in constructed wetland-microbial fuel cell exposed to wastewater containing Pb(II). THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 732:139127. [PMID: 32438162 DOI: 10.1016/j.scitotenv.2020.139127] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 04/01/2020] [Accepted: 04/28/2020] [Indexed: 06/11/2023]
Abstract
Two constructed wetland microbial fuel cell (CW-MFC) devices, experimental group (EG, with 5 mg/L Pb(II) addition) and control group (CG) were built to explore the changes in power generation, wastewater purification and microbial community structure under Pb(II) stress. The voltage of EG (343.16 ± 12.14 mV) was significantly higher (p < 0.01) than that of CG (295.49 ± 13.91 mV), and the highest power density of the EG and CG were 7.432 mW·m-2 and 3.873 mW·m-2, respectively. There was no significant difference in the removal of common pollutants between these groups except for the NH4+-N removal efficiency, which was probably caused by the inhibition of the bioactivity of Comamonas (AOB) in the anode of the experimental group by Pb(II). Pb(II) was effectively removed by CW-MFC (84.86 ± 3%), and the abundant amount of fulvic acid-like matter in the extracellular polymeric substance (EPS) of the EG contributed to its removal. The presence of Pb(II) had a negative effect on both microbial community diversity and species richness. The abundance of a lead resistance gene, pbrT, decreased with long-term Pb(II) pressure. This is evidence of microbial adaptation to Pb(II).
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Affiliation(s)
- CongCong Zhao
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China
| | - DaWei Shang
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China; Institute of Environment and Ecology, Shandong Normal University, Jinan 255014, PR China
| | - YanLing Zou
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China; Institute of Environment and Ecology, Shandong Normal University, Jinan 255014, PR China
| | - YuanDa Du
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China
| | - Qian Wang
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China
| | - Fei Xu
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China
| | - Liang Ren
- Jiangsu CRRC Environment CO. LTD, Jiangsu Province 215557, China
| | - Qiang Kong
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China; Department of Civil and Environmental Engineering, National University of Singapore, Singapore 117576, Singapore.
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Mohanakrishna G, Al-Raoush RI, Abu-Reesh IM. Sewage enhanced bioelectrochemical degradation of petroleum hydrocarbons in soil environment through bioelectro-stimulation. ACTA ACUST UNITED AC 2020; 27:e00478. [PMID: 32518761 PMCID: PMC7270540 DOI: 10.1016/j.btre.2020.e00478] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/30/2020] [Accepted: 05/24/2020] [Indexed: 11/25/2022]
Abstract
Acetate and sewage were evaluated for enhanced hydrocarbons degradation in soil bioelectrochemical systems. Sewage has superior function in improving in situ bioelectrochemical degradation. Both acetate and sewage improved power density, substrate and sulfate removal. Soil contaminated with produced water was remediated by more than 70 %.
The impact of readily biodegradable substrates (sewage and acetate) in bioelectroremediation of hydrocarbons (PW) was evaluated in a bench-scale soil-based hybrid bioelectrochemical system. Addition of bioelectro-stimulants evidenced efficient degradation than control operation. Acetate and sewage were exhibited power density of 1126 mW/m2 and 1145 mW/m2, respectively, which is almost 15 % higher than control (without stimulant, 974 mW/m2). Increased electrochemical activity was correlated well with total petroleum hydrocarbons (TPH) degradation through addition of acetate (TPHR, 525 mg/L, 67.4 %) and sewage (TPHR, 560 mg/L,71.8 %) compared to the control operation (TPHR, 503 mg/L, 64.5 %). Similarly, chemical oxygen demand (COD) reduction was also enhanced from 69.0 % (control) to 72.1 % and 74.6 % with acetate and sewage, respectively. Sewage and acetate also showed a positive role in sulfates removal, which enhanced from 56.0 % (control) to 62.9 % (acetate) and 72.6 % (sewage). This study signifies the superior function of sewage as biostimulant compared to acetate for the bioelectroremediation of hydrocarbons in contaminated soils.
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Key Words
- Applied potential
- BES, Bioelectrochemical system
- BET, Bioelectrochemical treatment
- COD, Chemical oxygen demand
- DROs, Diesel range organics
- EAB, Electroactive anodic biofilms
- In situ bioelectroremediation
- MFC, Microbial fuel cell
- PRW, Petroleum refinery wastewater
- PW, Produced water
- Petroleum hydrocarbons
- Produced water
- SRB, Sulfate reducing bacteria
- Sewage supplementation
- TDS, Total dissolved solids
- TPH, Total petroleum hydrocarbons
- TPHR, Total petroleum hydrocarbons removal
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Affiliation(s)
- Gunda Mohanakrishna
- Department of Civil and Architectural Engineering, College of Engineering, Qatar University, P O Box 2713, Doha, Qatar
| | - Riyadh I Al-Raoush
- Department of Civil and Architectural Engineering, College of Engineering, Qatar University, P O Box 2713, Doha, Qatar
| | - Ibrahim M Abu-Reesh
- Department of Chemical Engineering, College of Engineering, Qatar University, P O Box 2713, Doha, Qatar
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Chen BY, Wu YC, Lin YH, Tayo LL, Tacas AC, Hsueh CC. Deciphering Electron-Shuttling Characteristics of Parkinson’s Disease Medicines via Bioenergy Extraction in Microbial Fuel Cells. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c01062] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Bor-Yann Chen
- Department of Chemical and Materials Engineering, National I-Lan University, I-Lan 26047, Taiwan
| | - Yun-Chen Wu
- Department of Chemical and Materials Engineering, National I-Lan University, I-Lan 26047, Taiwan
| | - Yu-Hsiu Lin
- Department of Chemical and Materials Engineering, National I-Lan University, I-Lan 26047, Taiwan
| | - Lemmuel Lara Tayo
- Department of Chemical, Biological, and Materials Engineering, Mapúa University, Manila 1002, Philippines
| | - Arjay Christopher Tacas
- Department of Chemical, Biological, and Materials Engineering, Mapúa University, Manila 1002, Philippines
| | - Chung-Chuan Hsueh
- Department of Chemical and Materials Engineering, National I-Lan University, I-Lan 26047, Taiwan
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Hsueh CC, Wu CC, Chen BY. Polyphenolic compounds as electron shuttles for sustainable energy utilization. BIOTECHNOLOGY FOR BIOFUELS 2019; 12:271. [PMID: 31832094 PMCID: PMC6859638 DOI: 10.1186/s13068-019-1602-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Accepted: 10/25/2019] [Indexed: 05/05/2023]
Abstract
For renewable and sustainable bioenergy utilization with cost-effectiveness, electron-shuttles (ESs) (or redox mediators (RMs)) act as electrochemical "catalysts" to enhance rates of redox reactions, catalytically accelerating electron transport efficiency for abiotic and biotic electrochemical reactions. ESs are popularly used in cellular respiratory systems, metabolisms in organisms, and widely applied to support global lives. Apparently, they are applicable to increase power-generating capabilities for energy utilization and/or fuel storage (i.e., dye-sensitized solar cell, batteries, and microbial fuel cells (MFCs)). This first-attempt review specifically deciphers the chemical structure association with characteristics of ESs, and discloses redox-mediating potentials of polyphenolics-abundant ESs via MFC modules. Moreover, to effectively convert electron-shuttling capabilities from non-sustainable antioxidant activities, environmental conditions to induce electrochemical mediation apparently play critical roles of great significance for bioenergy stimulation. For example, pH levels would significantly affect electrochemical potentials to be exhibited (e.g., alkaline pHs are electrochemically favorable for expression of such electron-shuttling characteristics). Regarding chemical structure effect, chemicals with ortho- and para-dihydroxyl substituents-bearing aromatics own convertible characteristics of non-renewable antioxidants and electrochemically catalytic ESs; however, ES capabilities of meta-dihydroxyl substituents can be evidently repressed due to lack of resonance effect in the structure for intermediate radical(s) during redox reaction. Moreover, this review provides conclusive remarks to elucidate the promising feasibility to identify whether such characteristics are non-renewable antioxidants or reversible ESs from natural polyphenols via cyclic voltammetry and MFC evaluation. Evidently, considering sustainable development, such electrochemically convertible polyphenolic species in plant extracts can be reversibly expressed for bioenergy-stimulating capabilities in MFCs under electrochemically favorable conditions.
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Affiliation(s)
- Chung-Chuan Hsueh
- Department of Chemical and Materials Engineering, National I-Lan University, I-Lan, 26047 Taiwan
| | - Chia-Chyi Wu
- Department of Horticulture, National I-Lan University, I-Lan, 26047 Taiwan
| | - Bor-Yann Chen
- Department of Chemical and Materials Engineering, National I-Lan University, I-Lan, 26047 Taiwan
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Xu B, Guo LL, Sun QJ, Qin LJ, Tsai PW, Hsueh CC, Chen BY. Deciphering electrochemically promising electron-shuttling characteristics of hydrolysable tannin-abundant Galla chinensis for bioenergy generation in microbial fuel cells. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2019.107318] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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12
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Xu F, Ouyang DL, Rene ER, Ng HY, Guo LL, Zhu YJ, Zhou LL, Yuan Q, Miao MS, Wang Q, Kong Q. Electricity production enhancement in a constructed wetland-microbial fuel cell system for treating saline wastewater. BIORESOURCE TECHNOLOGY 2019; 288:121462. [PMID: 31128542 DOI: 10.1016/j.biortech.2019.121462] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Revised: 05/06/2019] [Accepted: 05/11/2019] [Indexed: 06/09/2023]
Abstract
The use of constructed wetlands in combination with microbial fuel cells (CW-MFC) to treat saline wastewater may enhance electricity production by increasing the ionic strength, reducing internal resistance and stimulating microbes to accelerate electron transfer. In this study, salinity did not significantly inhibit the removal of TP and COD, but TN and NH4+-N removal efficiencies during saline wastewater treatment (ST) were significantly lower than during non-saline wastewater treatment (NT). However, salinity significantly increased the power density (16.4 mW m-2 in ST and 3.9 mW m-2 in NT, a 4-fold enhancement) by increasing the electron transfer rate and reducing internal resistance (140.29 Ω in ST and 415.21 Ω in NT). The peptides in extracellular polymeric substances (EPS) acted as electron shuttles to promote the migration of electrons and protons in ST. From start-up to stable operation, though the microorganisms in ST were reduced in diversity relative to NT, the proportion of electrochemically active bacteria (EAB), such as Ochrobactrum, significantly increased (p < 0.05) and gradually predominated in the microbial community.
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Affiliation(s)
- Fei Xu
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China
| | - De-Long Ouyang
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China
| | - Eldon R Rene
- Department of Environmental Engineering and Water Technology, UNESCO-IHE Institute for Water Education, Westvest 7, 2611 AX Delft, the Netherlands
| | - How Yong Ng
- Department of Civil and Environmental Engineering, National University of Singapore, Singapore 117576, Singapore
| | - Ling-Ling Guo
- School of Textile & Clothing, Yancheng Institute of Technology, Yancheng 224051, PR China
| | - Ya-Jie Zhu
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China
| | - Lu-Lu Zhou
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China
| | - Qing Yuan
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China
| | - Ming-Sheng Miao
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China
| | - Qian Wang
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China
| | - Qiang Kong
- College of Geography and Environment, Collaborative Innovation Center of Human-Nature and Green Development in Universities of Shandong, Shandong Normal University, Jinan 250014, PR China; Department of Civil and Environmental Engineering, National University of Singapore, Singapore 117576, Singapore.
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Guo LL, Qin LJ, Xu B, Wang XZ, Hsueh CC, Chen BY. Deciphering electron-shuttling characteristics of epinephrine and dopamine for bioenergy extraction using microbial fuel cells. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2019.04.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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14
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Zhang S, Qu Z, Hsueh CC, Chang CT, Chen BY. Deciphering electron-shuttling characteristics of Scutellaria baicalensis Georgi and ingredients for bioelectricity generation in microbial fuel cells. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2018.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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15
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Xu B, Lan JC, Sun Q, Hsueh C, Chen BY. Deciphering optimal biostimulation strategy of supplementing anthocyanin-abundant plant extracts for bioelectricity extraction in microbial fuel cells. BIOTECHNOLOGY FOR BIOFUELS 2019; 12:46. [PMID: 30867679 PMCID: PMC6396463 DOI: 10.1186/s13068-019-1385-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 02/20/2019] [Indexed: 05/06/2023]
Abstract
BACKGROUND Microbial fuel cells (MFCs) are effective biofuel devices that use indigenous microbes to directly convert chemical energy from organics oxidation into bioelectric energy. To maximize energy-converting efficiency for bioelectricity generation in MFCs, redox mediators (RMs) (e.g., extracts obtained from plant resource-Camellia green tea) have been explored for optimal stimulation upon electron transfer (ET) capabilities. Anthocyanins are natural antioxidants widely used in food science and medicinal industry. This first-attempt study revealed optimal strategies to augment extracts of anthocyanin-rich herbs (Lycium ruthenicum Murr., Clitoria ternatea Linn. and Vaccinium Spp.) as biofuel sources of catalytic RMs for stimulating bioenergy extraction in MFCs. RESULTS This work showed that extracts of anthocyanin-rich herbs were promising electroactive RMs. The maximal power density of MFCs supplemented with extract of L. ruthenicum Murr. was achieved, suggesting that extract of L. ruthenicum Murr. would be the most electrochemically appropriate RMs. Compared to C. ternatea Linn. and Vaccinium Spp., L. ruthenicum Murr. evidently owned the most significant redox-mediating capability to stimulate bioenergy extraction likely due to significantly high contents of polyphenols (e.g., anthocyanin). Evidently, increases in adenosine triphosphate (ATP) content directly responded to supplementation of anthocyanin-rich herbal extracts. It strongly suggested that the electron-shuttling characteristics of RMs upon electroactive microorganisms could effectively promote the electron transfer capability to maximize bioenergy extraction in MFCs. CONCLUSION Anthocyanin as the main water-soluble vacuolar pigments in plant products were very electroactive for not only excellent antioxidant activities, but also promising electron-shuttling capabilities for renewable biofuel applications. This work also suggested the electron-shuttling mechanism of RMs that could possibly promote electron transport phenomena through microbial cell membrane, further influencing the electron transport chain for efficient bioenergy generation.
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Affiliation(s)
- Bin Xu
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, and Research Center for Learning Science, Southeast University, Nanjing, 210096 People’s Republic of China
- Department of Chemical and Materials Engineering, National I-Lan University, Yilan, 26047 Taiwan
| | - John Chiwei Lan
- Biorefinery and Bioprocess Engineering Laboratory, Department of Chemical Engineering and Materials Science, Yuan Ze University, Chungli, Taoyuan, 32003 Taiwan
| | - Qingjiang Sun
- State Key Laboratory of Bioelectronics, School of Biological Science & Medical Engineering, and Research Center for Learning Science, Southeast University, Nanjing, 210096 People’s Republic of China
| | - Chungchuan Hsueh
- Department of Chemical and Materials Engineering, National I-Lan University, Yilan, 26047 Taiwan
| | - Bor-Yann Chen
- Department of Chemical and Materials Engineering, National I-Lan University, Yilan, 26047 Taiwan
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Chen BY, Liao JH, Hsu AW, Tsai PW, Hsueh CC. Exploring optimal supplement strategy of medicinal herbs and tea extracts for bioelectricity generation in microbial fuel cells. BIORESOURCE TECHNOLOGY 2018; 256:95-101. [PMID: 29433051 DOI: 10.1016/j.biortech.2018.01.152] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 01/30/2018] [Accepted: 01/31/2018] [Indexed: 05/22/2023]
Abstract
This first-attempt study used extracts of appropriate antioxidant abundant Camellia and non-Camellia tea and medicinal herbs as model ESs to stably intensify bioelectricity generation performance in microbial fuel cells (MFCs). As electron shuttles (ESs) could stimulate electron transport phenomena by significant reduction of electron transfer resistance, the efficiency of power generation for energy extraction in microbial fuel cells (MFCs) could be appreciably augmented. Using environmentally friendly natural bioresource as green bioresource of ESs is the most promising to sustainable practicability. As comparison of power-density profiles indicated, supplement of Camellia tea extracts would be the most appropriate, then followed non-Camellia Chrysanthemum tea and medicinal herbs. Antioxidant activities, total phenolic contents and power stimulating activities were all electrochemically associated. In particular, the extract of unfermented Camellia tea (i.e., green tea) was the most promising ESs to augment bioenergy extraction compared to other refreshing medicinal herb extracts.
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Affiliation(s)
- Bor-Yann Chen
- Department of Chemical and Materials Engineering, National I-Lan University, I-Lan 26047, Taiwan.
| | - Jia-Hui Liao
- Department of Chemical and Materials Engineering, National I-Lan University, I-Lan 26047, Taiwan
| | - An-Wei Hsu
- Department of Chemical and Materials Engineering, National I-Lan University, I-Lan 26047, Taiwan
| | - Po-Wei Tsai
- Department of Medical Sciences Industry, Chang Jung Christian University, Tainan City 71101, Taiwan
| | - Chung-Chuan Hsueh
- Department of Chemical and Materials Engineering, National I-Lan University, I-Lan 26047, Taiwan
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Ng IS, Hsueh CC, Chen BY. Electron transport phenomena of electroactive bacteria in microbial fuel cells: a review of Proteus hauseri. BIORESOUR BIOPROCESS 2017. [DOI: 10.1186/s40643-017-0183-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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