1
|
Sahoo KK, Katari JK, Das D. Recent advances in methanol production from methanotrophs. World J Microbiol Biotechnol 2023; 39:360. [PMID: 37891430 DOI: 10.1007/s11274-023-03813-y] [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: 08/30/2023] [Accepted: 10/19/2023] [Indexed: 10/29/2023]
Abstract
Methanol, the simplest aliphatic molecule of the alcohol family, finds diverse range of applications as an industrial solvent, a precursor for producing other chemicals (e.g., dimethyl ether, acetic acid and formaldehyde), and a potential fuel. There are conventional chemical routes for methanol production such as, steam reforming of natural gas to form syngas, followed by catalytic conversion into methanol; direct catalytic oxidation of methane, or hydrogenation of carbon dioxide. However, these chemical routes are limited by the requirement for expensive catalysts and extreme process conditions, and plausible environmental implications. Alternatively, methanotrophic microorganisms are being explored as biological alternative for methanol production, under milder process conditions, bypassing the requirement for chemical catalysts, and without imposing any adverse environmental impact. Methanotrophs possess inherent metabolic pathways for methanol production via biological methane oxidation or carbon dioxide reduction, thus offering a surplus advantage pertaining to the sequestration of two major greenhouse gases. This review sheds light on the recent advances in methanotrophic methanol production including metabolic pathways, feedstocks, metabolic engineering, and bioprocess engineering approaches. Furthermore, various reactor configurations are discussed in view of the challenges associated with solubility and mass transfer limitations in methanotrophic gas fermentation systems.
Collapse
Affiliation(s)
- Krishna Kalyani Sahoo
- Department of Biosciences & Bioengineering, Indian Institute of Technology, Guwahati, 781039, Assam, India
| | - John Kiran Katari
- School of Energy Science & Engineering, Indian Institute of Technology, Guwahati, 781039, Assam, India
| | - Debasish Das
- Department of Biosciences & Bioengineering, Indian Institute of Technology, Guwahati, 781039, Assam, India.
- School of Energy Science & Engineering, Indian Institute of Technology, Guwahati, 781039, Assam, India.
| |
Collapse
|
2
|
Subudhi S, Saha K, Mudgil D, Sarangi PK, Srivastava RK, Sarma MK. Biomethanol production from renewable resources: a sustainable approach. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-29616-0. [PMID: 37667122 DOI: 10.1007/s11356-023-29616-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 08/27/2023] [Indexed: 09/06/2023]
Abstract
The abundant availability of various kinds of biomass and their use as feedstock for the production of gaseous and liquid biofuels has been considered a viable, eco-friendly, and sustainable mode of energy generation. Gaseous fuels like biogas and liquid fuels, e.g., bioethanol, biodiesel, and biomethanol derived from biological sources, have been theorized to produce numerous industrially relevant organic compounds replacing the traditional practice of employing fossil fuels as a raw material. Among the biofuels explored, biomethanol has shown promising potential to be a future product addressing multifactorial issues concerning sustainable energy and associated process developments. The presented mini-review has explored the importance and application of biomethanol as a value-added product. The biomethanol production process was well reviewed by focusing on different thermochemical and biochemical conversion processes. Syngas and biogas have been acknowledged as potential resources for biomethanol synthesis. The emphasis on biochemical processes is laid on the principal metabolic pathways and enzymatic machinery involved or used by microbial physiology to convert feedstock into biomethanol under normal temperature and pressure conditions. The advantage of minimizing the cost of production by utilizing suggested modifications to the overall process of biomethanol production that involves metabolic and genetic engineering in microbial strains used in the production process has been delineated. The challenges that exist in our current knowledge domain, impeding large-scale commercial production potential of biomethanol at a cost-effective rate, and strategies to overcome them along with its future scenarios have also been pointed out.
Collapse
Affiliation(s)
- Sanjukta Subudhi
- Advanced Biofuels Program, The Energy and Resources Institute, Darbari Seth Block, Habitat Place, Lodhi Road, New Delhi, 110 003, India.
| | - Koel Saha
- Advanced Biofuels Program, The Energy and Resources Institute, Darbari Seth Block, Habitat Place, Lodhi Road, New Delhi, 110 003, India
| | - Divya Mudgil
- Advanced Biofuels Program, The Energy and Resources Institute, Darbari Seth Block, Habitat Place, Lodhi Road, New Delhi, 110 003, India
| | - Prakash Kumar Sarangi
- College of Agriculture, Central Agricultural University, Imphal, 795004, Manipur, India
| | - Rajesh K Srivastava
- Department of Biotechnology, Gitam School of Technology, GITAM (Deemed to Be University), Visakhapatnam, 530045, India
| | - Mrinal Kumar Sarma
- Advanced Biofuels Program, The Energy and Resources Institute, Darbari Seth Block, Habitat Place, Lodhi Road, New Delhi, 110 003, India
| |
Collapse
|
3
|
Sahoo KK, Sinha A, Das D. Process engineering strategy for improved methanol production in Methylosinus trichosporium through enhanced mass transfer and solubility of methane and carbon dioxide. BIORESOURCE TECHNOLOGY 2023; 371:128603. [PMID: 36634876 DOI: 10.1016/j.biortech.2023.128603] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/06/2023] [Accepted: 01/07/2023] [Indexed: 06/17/2023]
Abstract
Methanol was produced in a two-stage integrated process using Methylosinus trichosporium NCIMB 11131. The first stage involved sequestration of methane to produce methanotrophic biomass, which was utilized as biocatalyst in the second stage to convert CO2 into methanol. A combinatorial process engineering approach of design of micro-sparger, engagement of draft tube, addition of mass transfer vector and elevation of reactor operating pressure was employed to enhance production of biomass and methanol. Maximum biomass titer of 7.68 g/L and productivity of 1.46 g/L d-1 were achieved in an airlift reactor equipped with a micro-sparger of 5 µm pore size, in the presence of draft tube and 10 % v/v silicone oil, as mass transfer vector. Maximum methane fixation rate was estimated to be 0.80 g/L d-1. Maximum methanol titer of 1.98 g/L was achieved under an elevated operating pressure of 4 bar in a high-pressure stirred tank reactor.
Collapse
Affiliation(s)
- Krishna Kalyani Sahoo
- Department of Biosciences & Bioengineering, Indian Institute of Technology, Guwahati, Assam 781039, India
| | - Ankan Sinha
- Department of Biosciences & Bioengineering, Indian Institute of Technology, Guwahati, Assam 781039, India
| | - Debasish Das
- Department of Biosciences & Bioengineering, Indian Institute of Technology, Guwahati, Assam 781039, India.
| |
Collapse
|
4
|
Patel SKS, Gupta RK, Kalia VC, Lee JK. Synthetic design of methanotroph co-cultures and their immobilization within polymers containing magnetic nanoparticles to enhance methanol production from wheat straw-based biogas. BIORESOURCE TECHNOLOGY 2022; 364:128032. [PMID: 36167174 DOI: 10.1016/j.biortech.2022.128032] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/20/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
In this study, various methanotroph co-cultures were designed to enhance methanol production from biogas produced through the anaerobic digestion of wheat straw (WS). Furthermore, whole-cell immobilization was performed using magnetic nanoparticle (MNP)-loaded polymers to develop an efficient bioprocess. The anaerobic digestion of WS by cattle dung yielded 219 L/kg of total solids reduced. Methanol produced was 5.08 and 6.39 mmol/L by pure- and co-cultures from biogas, respectively. The optimization of process parameters enhanced methanol production to 6.82 mmol/L by co-culturing Mithylosinus sporium and Methylocella tundrae. The immobilized co-culture within the MNP-doped polymers exhibited much higher cumulative methanol of up to 70.74 mmol/L than the production of 22.34 mmol/L by free cells after ten cycles of reuse. This study suggests that MNP-doped polymer-based immobilization of methanotrophs is a unique approach for producing renewable fuels from biomass-derived biogas, a greenhouse gas.
Collapse
Affiliation(s)
- Sanjay K S Patel
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Rahul K Gupta
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Vipin C Kalia
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Jung-Kul Lee
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea.
| |
Collapse
|
5
|
Contreras JA, Valenzuela EI, Quijano G. Nitrate/nitrite-dependent anaerobic oxidation of methane (N-AOM) as a technology platform for greenhouse gas abatement in wastewater treatment plants: State-of-the-art and challenges. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 319:115671. [PMID: 35816965 DOI: 10.1016/j.jenvman.2022.115671] [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: 04/15/2022] [Revised: 06/21/2022] [Accepted: 07/01/2022] [Indexed: 06/15/2023]
Abstract
Nitrate/nitrite-dependent anaerobic oxidation of methane (N-AOM) is a metabolic process recently discovered and partially characterized in terms of the microorganisms and pathways involved. The N-AOM process can be a powerful tool for mitigating the impacts of greenhouse gas emissions from wastewater treatment plants by coupling the reduction of nitrate or nitrite with the oxidation of residual dissolved methane. Besides specific anaerobic methanotrophs such as bacteria members of the phylum NC10 and archaea belonging to the lineage ANME-2d, recent reports suggested that other methane-oxidizing bacteria in syntrophy with denitrifiers can also perform the N-AOM process, which facilitates the application of this metabolic process for the oxidation of residual methane under realistic scenarios. This work constitutes a state-of-art review that includes the fundamentals of the N-AOM process, new information on process microbiology, bioreactor configurations, and operating conditions for process implementation in WWTP. Potential advantages of the N-AOM process over aerobic methanotrophic biotechnologies are presented, including the potential interrelation of the N-AOM with other nitrogen removal processes within the WWTP, such as the anaerobic ammonium oxidation. This work also addressed the challenges of this biotechnology towards its application at full scale, identifying and discussing critical research niches.
Collapse
Affiliation(s)
- José A Contreras
- Laboratory for Research on Advanced Processes for Water Treatment, Instituto de Ingeniería, Unidad Académica Juriquilla, Universidad Nacional Autónoma de México, Blvd. Juriquilla 3001, Querétaro, 76230, Mexico
| | - Edgardo I Valenzuela
- Laboratory for Research on Advanced Processes for Water Treatment, Instituto de Ingeniería, Unidad Académica Juriquilla, Universidad Nacional Autónoma de México, Blvd. Juriquilla 3001, Querétaro, 76230, Mexico
| | - Guillermo Quijano
- Laboratory for Research on Advanced Processes for Water Treatment, Instituto de Ingeniería, Unidad Académica Juriquilla, Universidad Nacional Autónoma de México, Blvd. Juriquilla 3001, Querétaro, 76230, Mexico.
| |
Collapse
|
6
|
Sharma K, Park YK, Nadda AK, Banerjee P, Singh P, Raizada P, Banat F, Bharath G, Jeong SM, Lam SS. Emerging chemo-biocatalytic routes for valorization of major greenhouse gases (GHG) into industrial products: A comprehensive review. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.02.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
7
|
Sagar I, Nimonkar Y, Dhotre D, Shouche Y, Ranade D, Dewala S, Prakash O. A Microcosm Model for the Study of Microbial Community Shift and Carbon Emission from Landfills. Indian J Microbiol 2022; 62:195-203. [DOI: 10.1007/s12088-021-00995-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 12/07/2021] [Indexed: 12/22/2022] Open
|
8
|
Abstract
The paper presents the research results obtained in the process of oxidative coupling of methane, in which unpurified biogas was used as the feedstock. Biogas obtained from two kinds of biomass materials, i.e., plant materials (potato and beet pulp, Corn-Cob-Mix—biogas 1) and animal waste (waste from fish filleting—biogas 2) was considered. The influence of temperature, the ratio of methane/oxygen and total flows of feedstock on the catalytic performance in oxidative coupling of methane process was investigated. Comparative tests were carried out using pure methane and a mixture of methane-carbon dioxide to simulate the composition of biogas 2. The process was carried out in the presence of an Mn-Na2WO4/SiO2 catalyst. Fresh and used catalysts were characterised by means of powder X-ray diffraction, X-ray photoelectron spectroscopy, and low-temperature nitrogen adsorption techniques. In oxidative coupling of methane, the type of raw material used as the source of methane has a small effect on methane conversion (the differences in methane conversion are below 3%), but a significant effect on the selectivity to C2. Depending on the type of raw material, the differences in selectivity to C2 reach as high as 9%. However, the Mn-Na2WO4/SiO2 catalyst operated steadily in the tested period of time at any feedstock composition. Moreover, it was found that CO2, which is the second main component of biogas in addition to methane, has an effect on catalytic performance. Comparative results of catalytic tests indicate that the CO2 effect varies with temperature. Below 1073 K, CO2 exerts a small poisoning effect on methane conversion, while above this temperature the negative effect of CO2 disappears. In the case of selectivity to C2+, the negative effect of CO2 was observed only at 1023 K. At higher temperatures, CO2 enhances selectivity to C2+. The effect of CO2 was established by correlating the catalytic results with the temperature programmed desorption of CO2 investigation. The poisoning effect of CO2 was connected with the formation of surface Na2CO3, whose concentration depends on temperature.
Collapse
|
9
|
Sahoo KK, Datta S, Goswami G, Das D. Two-stage integrated process for bio-methanol production coupled with methane and carbon dioxide sequestration: Kinetic modelling and experimental validation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 301:113927. [PMID: 34638043 DOI: 10.1016/j.jenvman.2021.113927] [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: 06/30/2021] [Revised: 08/23/2021] [Accepted: 10/07/2021] [Indexed: 06/13/2023]
Abstract
The study demonstrates a two-stage integrated process for bio-methanol production using Methylosinus trichosporium NCIMB 11131, coupled with sequestration of methane and carbon dioxide. The first stage involved generation of methanotrophic biomass via sequestration of methane; which was used as biocatalyst to reduce carbon dioxide into methanol in the second stage. Maximum biomass titer of 3.39 g L-1 and productivity of 0.60 g L-1 d-1 were achieved in semi-batch stirred tank reactor with methane concentration in the inlet gas mixture of 2.5% v/v and gas flow rate of 0.5 vvm. Methane fixation rate was estimated to be 0.32 g L-1 d-1. Maximum methanol titer of 0.58 g L-1 was achieved at headspace carbon dioxide concentration of 50% v/v and liquid to headspace volume ratio 10:90. Subsequently, a kinetic model was developed to predict and understand the system behaviour in terms of dynamic profile of growth, methanol formation, concentration of dissolved methane or carbon dioxide in the aqueous phase and headspace carbon dioxide concentration, in response to varying process parameters. The model can serve as a tool for estimation of process parameters and aid in overall production optimization.
Collapse
Affiliation(s)
- Krishna Kalyani Sahoo
- Department of Biosciences & Bioengineering, Indian Institute of Technology, Guwahati, Assam, 781039, India
| | - Swagata Datta
- Department of Biosciences & Bioengineering, Indian Institute of Technology, Guwahati, Assam, 781039, India
| | - Gargi Goswami
- Department of Biotechnology, Gandhi Institute of Technology and Management (GITAM) University, Visakhapatnam, Andhra Pradesh, 530045, India
| | - Debasish Das
- Department of Biosciences & Bioengineering, Indian Institute of Technology, Guwahati, Assam, 781039, India.
| |
Collapse
|
10
|
Kumar N, Chauhan NS. Nano-Biocatalysts: Potential Biotechnological Applications. Indian J Microbiol 2021; 61:441-448. [PMID: 34744199 PMCID: PMC8542021 DOI: 10.1007/s12088-021-00975-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 08/19/2021] [Indexed: 12/14/2022] Open
Abstract
Biocatalysts are a biomolecule of interest for various biotechnological applications. Non-reusability and poor stability of especially enzymes has always limited their applications in large-scale processing units. Nanotechnology paves a way by conjugating the biocatalysts on different matrices. It predominantly enables nanomaterials to overcome the limited efficacy of conventional biocatalysts. Nanomaterial conjugated nanobiocatalyst have enhanced catalytic properties, selectivity, and stability. Nanotechnology extended the flexibility to engineer biocatalysts for various innovative and predictive catalyses. So developed nanobiocatalyst harbors remarkable properties and has potential applications in diverse biotechnological sectors. This article summaries various developments made in the area of nanobiocatalyst towards their applications in biotechnological industries. Novel nanobiocatalyst engineering is an area of critical importance for harnessing the biotechnological potential.
Collapse
Affiliation(s)
- Naveen Kumar
- Department of Chemistry, Maharshi Dayanand University Rohtak, Rohtak, Haryana India
| | - Nar Singh Chauhan
- Department of Biochemistry, Maharshi Dayanand University Rohtak, Rohtak, Haryana India
| |
Collapse
|
11
|
Patel SKS, Shanmugam R, Lee JK, Kalia VC, Kim IW. Biomolecules Production from Greenhouse Gases by Methanotrophs. Indian J Microbiol 2021; 61:449-457. [PMID: 34744200 PMCID: PMC8542019 DOI: 10.1007/s12088-021-00986-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 09/13/2021] [Indexed: 12/24/2022] Open
Abstract
Harmful effects on living organisms and the environment are on the rise due to a significant increase in greenhouse gas (GHG) emissions through human activities. Therefore, various research initiatives have been carried out in several directions in relation to the utilization of GHGs via physicochemical or biological routes. An environmentally friendly approach to reduce the burden of significant emissions and their harmful effects is the bioconversion of GHGs, including methane (CH4) and carbon dioxide (CO2), into value-added products. Methanotrophs have enormous potential for the efficient biotransformation of CH4 to various bioactive molecules, including biofuels, polyhydroxyalkanoates, and fatty acids. This review highlights the recent developments in methanotroph-based systems for methanol production from GHGs and proposes future perspectives to improve process sustainability via biorefinery approaches.
Collapse
Affiliation(s)
- Sanjay K. S. Patel
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| | - Ramsamy Shanmugam
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| | - Jung-Kul Lee
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| | - Vipin C. Kalia
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| | - In-Won Kim
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| |
Collapse
|
12
|
Anaerobic Digestion of Agri-Food Wastes for Generating Biofuels. Indian J Microbiol 2021; 61:427-440. [PMID: 34744198 DOI: 10.1007/s12088-021-00977-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 08/25/2021] [Indexed: 12/24/2022] Open
Abstract
Presently, fossil fuels are extensively employed as major sources of energy, and their uses are considered unsustainable due to emissions of obnoxious gases on the burning of fossil fuels, which can lead to severe environmental complications, including human health. To tackle these issues, various processes are developing to waste as a feed to generate eco-friendly fuels. The biological production of fuels is considered to be more beneficial than physicochemical methods due to their environmentally friendly nature, high rate of conversion at ambient physiological conditions, and less energy-intensive. Among various biofuels, hydrogen (H2) is considered as a wonderful due to high calorific value and generate water molecule as end product on the burning. The H2 production from biowaste is demonstrated, and agri-food waste can be potentially used as a feedstock due to their high biodegradability over lignocellulosic-based biomass. Still, the H2 production is uneconomical from biowaste in fuel competing market because of low yields and increased capital and operational expenses. Anaerobic digestion is widely used for waste management and the generation of value-added products. This article is highlighting the valorization of agri-food waste to biofuels in single (H2) and two-stage bioprocesses of H2 and CH4 production.
Collapse
|
13
|
An Experimental Study on the Biological Fixation and Effective Use of Carbon Using Biogas and Bacterial Community Dominated by Methanotrophs, Methanol-Oxidizing Bacteria, and Ammonia-Oxidizing Bacteria. Catalysts 2021. [DOI: 10.3390/catal11111342] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This study used biogas from a wastewater treatment plant and bacterial community where methanotrophs, Methylophilus, and ammonia-oxidizing bacteria clusters coexisted to propose an effective method for biological carbon fixation and nitrogen removal in wastewater treatment for carbon capture, utilization, and storage (CCUS). Biogas from wastewater treatment plant was provided, instead of purified CH4, to provide operation and maintenance conditions of bio-catalyst reaction for efficient biological carbon fixation by bacterial community using methane and CO2. This study assessed the conditions to induce type X methanotrophs that can use CO2 as a carbon source, as dominant species in the bacterial community and continuously and effectively supply reducing equivalents required for the conversion of CO2 to methanol within the system. Herein, the results of inducing efficient co-existence of methanotrophs, Methylophilus, and ammonia-oxidizing bacteria cluster in the bacterial community were shown.
Collapse
|
14
|
Gęsicka A, Oleskowicz-Popiel P, Łężyk M. Recent trends in methane to bioproduct conversion by methanotrophs. Biotechnol Adv 2021; 53:107861. [PMID: 34710553 DOI: 10.1016/j.biotechadv.2021.107861] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 10/11/2021] [Accepted: 10/20/2021] [Indexed: 12/26/2022]
Abstract
Methane is an abundant and low-cost gas with high global warming potential and its use as a feedstock can help mitigate climate change. Variety of valuable products can be produced from methane by methanotrophs in gas fermentation processes. By using methane as a sole carbon source, methanotrophic bacteria can produce bioplastics, biofuels, feed additives, ectoine and variety of other high-value chemical compounds. A lot of studies have been conducted through the years for natural methanotrophs and engineered strains as well as methanotrophic consortia. These have focused on increasing yields of native products as well as proof of concept for the synthesis of new range of chemicals by metabolic engineering. This review shows trends in the research on key methanotrophic bioproducts since 2015. Despite certain limitations of the known production strategies that makes commercialization of methane-based products challenging, there is currently much attention placed on the promising further development.
Collapse
Affiliation(s)
- Aleksandra Gęsicka
- Water Supply and Bioeconomy Division, Faculty of Environmental Engineering and Energy, Poznan University of Technology, Berdychowo 4, 60-965 Poznan, Poland
| | - Piotr Oleskowicz-Popiel
- Water Supply and Bioeconomy Division, Faculty of Environmental Engineering and Energy, Poznan University of Technology, Berdychowo 4, 60-965 Poznan, Poland.
| | - Mateusz Łężyk
- Water Supply and Bioeconomy Division, Faculty of Environmental Engineering and Energy, Poznan University of Technology, Berdychowo 4, 60-965 Poznan, Poland.
| |
Collapse
|
15
|
Selection of methanotrophic platform for methanol production using methane and biogas. J Biosci Bioeng 2021; 132:460-468. [PMID: 34462232 DOI: 10.1016/j.jbiosc.2021.07.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/11/2021] [Accepted: 07/14/2021] [Indexed: 11/23/2022]
Abstract
To develop biotechnological process for methane to methanol conversion, selection of a suitable methanotrophic platform is an important aspect. Systematic approach based on literature and public databases was developed to select representative methanotrophs Methylotuvimicrobium alcaliphilum, Methylomonas methanica, Methylosinus trichosporium and Methylocella silvestris. Selected methanotrophs were further investigated for methanol tolerance and methanol production on pure methane as well as biogas along with key enzyme activities involved in methane utilization. Among selected methanotrophs M. alcaliphilum showed maximum methanol tolerance of 6% v/v along with maximum methanol production of 307.90 mg/L and 247.37 mg/L on pure methane and biogas respectively. Activity of methane monooxygenase and formate dehydrogenase enzymes in M.alcaliphilum was significantly higher up to 98.40 nmol/min/mg cells and 0.87 U/mg protein, respectively. Biotransformation trials in 14 L fermentor resulted in increased methanol production up to 418 and 331.20 mg/L, with yield coefficient 0.83 and 0.71 mg methanol/mg of pure methane and biogas respectively. The systematic selection resulted in haloalkaliphilic strain M. alcaliphilum as one of the potential methanotroph for bio-methanol production.
Collapse
|
16
|
Usmani Z, Sharma M, Awasthi AK, Sharma GD, Cysneiros D, Nayak SC, Thakur VK, Naidu R, Pandey A, Gupta VK. Minimizing hazardous impact of food waste in a circular economy - Advances in resource recovery through green strategies. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:126154. [PMID: 34492935 DOI: 10.1016/j.jhazmat.2021.126154] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/08/2021] [Accepted: 05/15/2021] [Indexed: 06/13/2023]
Abstract
Recent trends in food waste and its management have increasingly started to focus on treating it as a reusable resource. The hazardous impact of food waste such as the release of greenhouse gases, deterioration of water quality and contamination of land areas are a major threat posed by food waste. Under the circular economy principles, food waste can be used as a sustainable supply of high-value energy, fuel, and nutrients through green techniques such as anaerobic digestion, co-digestion, composting, enzymatic treatment, ultrasonic, hydrothermal carbonization. Recent advances made in anaerobic co-digestion are helping in tackling dual or even multiple waste streams at once with better product yields. Integrated approaches that employ pre-processing the food waste to remove obstacles such as volatile fractions, oils and other inhibitory components from the feedstock to enhance their bioconversion to reduce sugars. Research efforts are also progressing in optimizing the operational parameters such as temperature, pressure, pH and residence time to enhance further the output of products such as methane, hydrogen and other platform chemicals such as lactic acid, succinic acid and formic acid. This review brings together some of the recent progress made in the green strategies towards food waste valorization.
Collapse
Affiliation(s)
- Zeba Usmani
- Department of Applied Biology, University of Science and Technology, Meghalaya 793101, India
| | - Minaxi Sharma
- Department of Applied Biology, University of Science and Technology, Meghalaya 793101, India; Food Technology, Akal College of Agriculture, Eternal University, Baru Sahib, Himachal Pradesh 173101, India
| | | | | | | | - S Chandra Nayak
- DOS in Biotechnology, University of Mysore Manasagangotri, Mysore, India
| | - Vijay Kumar Thakur
- Biorefining and Advanced Materials Research Center, Scotland's Rural College (SRUC), Kings Buildings, West Mains Road, Edinburgh EH9 3JG, UK
| | - Ravi Naidu
- Global Centre for Environmental Remediation (GCER), The University of Newcastle, Faculty of Science, Callaghan, NSW 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Ashok Pandey
- Centre for Innovation and Translational Research, CSIR-Indian Institute of Toxicology Research, Lucknow 226 001, India; Centre for Energy and Environmental Sustainability, Lucknow-226 029, India
| | - Vijai Kumar Gupta
- Biorefining and Advanced Materials Research Center, Scotland's Rural College (SRUC), Kings Buildings, West Mains Road, Edinburgh EH9 3JG, UK; Center for Safe and Improved Food, Scotland's Rural College (SRUC), Kings Buildings, West Mains Road, Edinburgh EH9 3JG, UK.
| |
Collapse
|
17
|
Biosynthesis of Lactobionic Acid in Whey-Containing Medium by Microencapsulated and Free Bacteria of Pseudomonas taetrolens. Indian J Microbiol 2021; 61:315-323. [PMID: 34290461 PMCID: PMC8263841 DOI: 10.1007/s12088-021-00944-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 05/03/2021] [Indexed: 12/02/2022] Open
Abstract
The aim of this research was to develop a method of its production from whey using bacteria of the species Pseudomonas taetrolens. Analyses of the lactobionic acid production method from whey showed that the following factors have a significant effect on its efficiency: the frequency of whey batch feeding, pH and the type of bacteria application, i.e. microencapsulated vs. free. Lactose and lactobionic acid were assayed using high performance liquid chromatography (HPLC) and liquid chromatography-electrospray ionization-tandem mass spectrometry (LC–ESI–MS). The highest concentration of lactobionic acid of 22.03 mg/cm3 was obtained when whey was batch fed at 72-h intervals, pH was maintained at 6.25 and bacteria were enclosed in alginate microcapsules.
Collapse
|
18
|
Sahoo KK, Goswami G, Das D. Biotransformation of Methane and Carbon Dioxide Into High-Value Products by Methanotrophs: Current State of Art and Future Prospects. Front Microbiol 2021; 12:636486. [PMID: 33776968 PMCID: PMC7987672 DOI: 10.3389/fmicb.2021.636486] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 02/22/2021] [Indexed: 01/16/2023] Open
Abstract
Conventional chemical methods to transform methane and carbon dioxide into useful chemicals are plagued by the requirement for extreme operating conditions and expensive catalysts. Exploitation of microorganisms as biocatalysts is an attractive alternative to sequester these C1 compounds and convert them into value-added chemicals through their inherent metabolic pathways. Microbial biocatalysts are advantageous over chemical processes as they require mild-operating conditions and do not release any toxic by-products. Methanotrophs are potential cell-factories for synthesizing a wide range of high-value products via utilizing methane as the sole source of carbon and energy, and hence, serve as excellent candidate for methane sequestration. Besides, methanotrophs are capable of capturing carbon dioxide and enzymatically hydrogenating it into methanol, and hence qualify to be suitable candidates for carbon dioxide sequestration. However, large-scale production of value-added products from methanotrophs still presents an overwhelming challenge, due to gas-liquid mass transfer limitations, low solubility of gases in liquid medium and low titer of products. This requires design and engineering of efficient reactors for scale-up of the process. The present review offers an overview of the metabolic architecture of methanotrophs and the range of product portfolio they can offer. Special emphasis is given on methanol biosynthesis as a potential biofuel molecule, through utilization of methane and alternate pathway of carbon dioxide sequestration. In view of the gas-liquid mass transfer and low solubility of gases, the key rate-limiting step in gas fermentation, emphasis is given toward reactor design consideration essential to achieve better process performance.
Collapse
Affiliation(s)
- Krishna Kalyani Sahoo
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, India
| | - Gargi Goswami
- Department of Biotechnology, Gandhi Institute of Technology and Management (GITAM) University, Visakhapatnam, India
| | - Debasish Das
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, India
| |
Collapse
|
19
|
Patel SKS, Gupta RK, Kalia VC, Lee JK. Integrating anaerobic digestion of potato peels to methanol production by methanotrophs immobilized on banana leaves. BIORESOURCE TECHNOLOGY 2021; 323:124550. [PMID: 33360718 DOI: 10.1016/j.biortech.2020.124550] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/10/2020] [Accepted: 12/11/2020] [Indexed: 06/12/2023]
Abstract
In the present study, potato peels were subjected to anaerobic digestion (AD) to produce biogas (methane [CH4] and carbon dioxide), which was subsequently used as a substrate for methanol production by methanotrophs. AD resulted in high yields of up to 170 L CH4/kg total solids (TS) from 250 mL substrate (2% TS, w/v). Under optimized conditions, maximum methanol production of 4.97 and 3.36 mmol/L from raw biogas was observed in Methylocella tundrae and Methyloferula stellata, respectively. Immobilization of methanotrophs on banana leaves showed loading of up to 156 mg dry cell mass/g support. M. tundrae immobilized on banana leaves retained 31.6-fold higher methanol production stability, compared to non-immobilized cells. To the best of our knowledge, this is the first study on immobilization of methanotrophs on banana leaves for producing methanol from potato peels AD-derived biogas. Such integrative approaches may be improved through process up-scaling to achieve sustainable development.
Collapse
Affiliation(s)
- Sanjay K S Patel
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Rahul K Gupta
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Vipin Chandra Kalia
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Jung-Kul Lee
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea.
| |
Collapse
|
20
|
Guo Q, Wang Y, Qian J, Zhang B, Hua M, Liu C, Pan B. Enhanced production of methane in anaerobic water treatment as mediated by the immobilized fungi. WATER RESEARCH 2021; 190:116761. [PMID: 33360615 DOI: 10.1016/j.watres.2020.116761] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/10/2020] [Accepted: 12/17/2020] [Indexed: 06/12/2023]
Abstract
Anaerobic digestion of organic waste and wastewater represents an attractive sustainable bio-technology to produce methane as an alternative to fossil energy. In response to improvement of methane production via enhancing methanogenesis, current strategies of the addition of external biological/non-biological materials have to confront either the loss of materials, high cost and/or possible destruction of the microbial community. Here, we report the first case of using immobilized fungi Aspergillus sydowii 8L-9-F02 to optimize the microbial community, achieving remarkable improvement of the methane production in both batch test (1.5 times) and continuous flow operation (1.13-1.31 times). The crucial role of fungi is associated with the stimulation of enrichment of Methanosaeta and Methanobacterium for methanogenesis from 28.2 to 67.4% as well as the improved activity of enzyme F420. Moreover, fungi also increase the content of extracellular polymeric substances, facilitating the formation of bio-aggregates. This work provides a new pathway to enhance methanogenesis during anaerobic digestion of wastewater by using fungi as bio-enhancer.
Collapse
Affiliation(s)
- Qiong Guo
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, China
| | - Ya'nan Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, China
| | - Jieshu Qian
- Research Center for Environmental Nanotechnology (ReCENT), Nanjing University, Nanjing 210023, China
| | - Bingliang Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, China
| | - Ming Hua
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, China; Research Center for Environmental Nanotechnology (ReCENT), Nanjing University, Nanjing 210023, China
| | - Changhong Liu
- School of Life Sciences, Nanjing University, Nanjing 210023, China; State Key of Pharmaceutical Biotechnology, State Key Laboratory of Pollution Control and Resource Reuse, Nanjing University, Nanjing, 210023, Jiangsu, China
| | - Bingcai Pan
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, China; Research Center for Environmental Nanotechnology (ReCENT), Nanjing University, Nanjing 210023, China.
| |
Collapse
|
21
|
Jawaharraj K, Shrestha N, Chilkoor G, Dhiman SS, Islam J, Gadhamshetty V. Valorization of methane from environmental engineering applications: A critical review. WATER RESEARCH 2020; 187:116400. [PMID: 32979578 DOI: 10.1016/j.watres.2020.116400] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 07/29/2020] [Accepted: 09/05/2020] [Indexed: 05/09/2023]
Abstract
Wastewater and waste management sectors alone account for 18% of the anthropogenic methane (CH4) emissions. This study presents a critical overview of methanotrophs ("methane oxidizing microorganisms") for valorizing typically discarded CH4 from environmental engineering applications, focusing on wastewater treatment plants. Methanotrophs can convert CH4 into valuable bioproducts including chemicals, biodiesel, DC electricity, polymers, and S-layers, all under ambient conditions. As discarded CH4 and its oxidation products can also be used as a carbon source in nitrification and annamox processes. Here we discuss modes of CH4 assimilation by methanotrophs in both natural and engineered systems. We also highlight the technical challenges and technological breakthroughs needed to enable targeted CH4 oxidation in wastewater treatment plants.
Collapse
Affiliation(s)
- Kalimuthu Jawaharraj
- Civil and Environmental Engineering, South Dakota Mines, Rapid City 57701, SD, United States; BuG ReMeDEE consortium, South Dakota Mines, Rapid City 57701, SD, United States
| | - Namita Shrestha
- Civil and Environmental Engineering, Rose-Hulman Institute of Technology, Terre Haute 47803, IN, United States
| | - Govinda Chilkoor
- Civil and Environmental Engineering, South Dakota Mines, Rapid City 57701, SD, United States; 2-Dimensional Materials for Biofilm Engineering Science and Technology (2DBEST) Center, South Dakota School of Mines and Technology, Rapid City 57701, SD, United States
| | - Saurabh Sudha Dhiman
- BuG ReMeDEE consortium, South Dakota Mines, Rapid City 57701, SD, United States; Biological and Chemical Engineering, South Dakota School of Mines & Technology, Rapid City 57701, SD, United States
| | - Jamil Islam
- Civil and Environmental Engineering, South Dakota Mines, Rapid City 57701, SD, United States; BuG ReMeDEE consortium, South Dakota Mines, Rapid City 57701, SD, United States
| | - Venkataramana Gadhamshetty
- Civil and Environmental Engineering, South Dakota Mines, Rapid City 57701, SD, United States; BuG ReMeDEE consortium, South Dakota Mines, Rapid City 57701, SD, United States; 2-Dimensional Materials for Biofilm Engineering Science and Technology (2DBEST) Center, South Dakota School of Mines and Technology, Rapid City 57701, SD, United States.
| |
Collapse
|
22
|
Patel SKS, Gupta RK, Kondaveeti S, Otari SV, Kumar A, Kalia VC, Lee JK. Conversion of biogas to methanol by methanotrophs immobilized on chemically modified chitosan. BIORESOURCE TECHNOLOGY 2020; 315:123791. [PMID: 32679540 DOI: 10.1016/j.biortech.2020.123791] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 06/30/2020] [Accepted: 07/01/2020] [Indexed: 06/11/2023]
Abstract
In this study, chitosan modified with glutaraldehyde (GLA), 3-aminopropyltriethoxysilane (APTES), polyethyleneimine, and APTES followed by GLA (APTES-GLA) as a support material was used to improve methanol production from biogas. Among these support materials, chitosan-APTES-GLA showed the highest increase in immobilization yield and relative efficiency of Methylomicrobium album up to 56.4% and 97.7%, respectively. Maximum cell loading of 236 mg dry cell mass per g-support was observed for M. album., which is 7.7-fold higher than that of chitosan. The immobilized M. album maintained a 23.9-fold higher methanol production compared to free cells after 8 cycles of reuse; it also produced 6.92 mmol·L-1 methanol from biogas that originated from anaerobic digestion of rice straw, thereby validating its industrial application. This is the first report on the immobilization of methanotrophs on chemically modified chitosans to improve cell loading and relative efficiency, and its potential applications in the conversion of greenhouse gases to methanol.
Collapse
Affiliation(s)
- Sanjay K S Patel
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Rahul K Gupta
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Sanath Kondaveeti
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Sachin V Otari
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Anurag Kumar
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Vipin C Kalia
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Jung-Kul Lee
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea.
| |
Collapse
|
23
|
Methanol Production by " Methylacidiphilum fumariolicum" SolV under Different Growth Conditions. Appl Environ Microbiol 2020; 86:AEM.01188-20. [PMID: 32631865 PMCID: PMC7480378 DOI: 10.1128/aem.01188-20] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 06/30/2020] [Indexed: 12/13/2022] Open
Abstract
The production of methanol, an important chemical, is completely dependent on natural gas. The current multistep chemical process uses high temperature and pressure to convert methane in natural gas to methanol. In this study, we used the methanotroph “Methylacidiphilum fumariolicum” SolV to achieve continuous methanol production from methane as the substrate. The production rate was highly dependent on the growth rate of this microorganism, and high conversion efficiencies were obtained. Using microorganisms for the production of methanol might enable the use of more sustainable sources of methane, such as biogas, rather than natural gas. Industrial methanol production converts methane from natural gas into methanol through a multistep chemical process. Biological methane-to-methanol conversion under moderate conditions and using biogas would be more environmentally friendly. Methanotrophs, bacteria that use methane as an energy source, convert methane into methanol in a single step catalyzed by the enzyme methane monooxygenase, but inhibition of methanol dehydrogenase, which catalyzes the subsequent conversion of methanol into formaldehyde, is a major challenge. In this study, we used the thermoacidophilic methanotroph “Methylacidiphilum fumariolicum” SolV for biological methanol production. This bacterium possesses a XoxF-type methanol dehydrogenase that is dependent on rare earth elements for activity. By using a cultivation medium nearly devoid of lanthanides, we reduced methanol dehydrogenase activity and obtained a continuous methanol-producing microbial culture. The methanol production rate and conversion efficiency were growth-rate dependent. A maximal conversion efficiency of 63% mol methanol produced per mol methane consumed was obtained at a relatively high growth rate, with a methanol production rate of 0.88 mmol/g (dry weight)/h. This study demonstrates that methanotrophs can be used for continuous methanol production. Full-scale application will require additional increases in the titer, production rate, and efficiency, which can be achieved by further decreasing the lanthanide concentration through the use of increased biomass concentrations and novel reactor designs to supply sufficient gases, including methane, oxygen, and hydrogen. IMPORTANCE The production of methanol, an important chemical, is completely dependent on natural gas. The current multistep chemical process uses high temperature and pressure to convert methane in natural gas to methanol. In this study, we used the methanotroph “Methylacidiphilum fumariolicum” SolV to achieve continuous methanol production from methane as the substrate. The production rate was highly dependent on the growth rate of this microorganism, and high conversion efficiencies were obtained. Using microorganisms for the production of methanol might enable the use of more sustainable sources of methane, such as biogas, rather than natural gas.
Collapse
|
24
|
Patel SKS, Gupta RK, Kumar V, Kondaveeti S, Kumar A, Das D, Kalia VC, Lee JK. Biomethanol Production from Methane by Immobilized Co-cultures of Methanotrophs. Indian J Microbiol 2020; 60:318-324. [PMID: 32647392 DOI: 10.1007/s12088-020-00883-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 05/06/2020] [Indexed: 11/30/2022] Open
Abstract
Methanol production by co-culture of methanotrophs Methylocystis bryophila and Methyloferula stellata was examined from methane, a greenhouse gas. Co-culture exhibited higher methanol yield of 4.72 mM at optimum ratio of M. bryophila and M. stellata (3:2) compared to individual cultures. The immobilized co-culture within polyvinyl alcohol (PVA) showed relative efficiency of 90.1% for methanol production at polymer concentration of 10% (v/v). The immobilized co-culture cells within PVA resulted in higher bioprocess stability over free cells at different pH, and temperatures. Free and encapsulated co-cultures showed maximum methanol production of 4.81 and 5.37 mM under optimum conditions, respectively. After five cycles of reusage under batch conditions, free and encapsulated co-cultures retained methanol production efficiency of 23.8 and 61.9%, respectively. The present investigation successfully revealed the useful influence of co-culture on the methanol production over pure culture. Further, encapsulation within the polymeric matrix proved to be a better approach for the enhanced stability of the bioprocess.
Collapse
Affiliation(s)
- Sanjay K S Patel
- Department of Chemical Engineering, Konkuk University, Seoul, 05029 Republic of Korea
| | - Rahul K Gupta
- Department of Chemical Engineering, Konkuk University, Seoul, 05029 Republic of Korea
| | - Virendra Kumar
- Department of Chemical Engineering, Konkuk University, Seoul, 05029 Republic of Korea
| | - Sanath Kondaveeti
- Department of Chemical Engineering, Konkuk University, Seoul, 05029 Republic of Korea
| | - Anurag Kumar
- Department of Chemical Engineering, Konkuk University, Seoul, 05029 Republic of Korea
| | - Devashish Das
- Department of Chemical Engineering, Konkuk University, Seoul, 05029 Republic of Korea
| | - Vipin Chandra Kalia
- Department of Chemical Engineering, Konkuk University, Seoul, 05029 Republic of Korea
| | - Jung-Kul Lee
- Department of Chemical Engineering, Konkuk University, Seoul, 05029 Republic of Korea
| |
Collapse
|
25
|
Entesari N, Goeppert A, Prakash GKS. Renewable Methanol Synthesis through Single Step Bi-reforming of Biogas. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c00755] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nazanin Entesari
- Loker Hydrocarbon Research Institute and Department of Chemistry, University of Southern California, University Park, Los Angeles, California 90089-1661, United States
| | - Alain Goeppert
- Loker Hydrocarbon Research Institute and Department of Chemistry, University of Southern California, University Park, Los Angeles, California 90089-1661, United States
| | - G. K. Surya Prakash
- Loker Hydrocarbon Research Institute and Department of Chemistry, University of Southern California, University Park, Los Angeles, California 90089-1661, United States
| |
Collapse
|
26
|
Patel SKS, Shanmugam R, Kalia VC, Lee JK. Methanol production by polymer-encapsulated methanotrophs from simulated biogas in the presence of methane vector. BIORESOURCE TECHNOLOGY 2020; 304:123022. [PMID: 32070839 DOI: 10.1016/j.biortech.2020.123022] [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: 12/24/2019] [Revised: 02/10/2020] [Accepted: 02/10/2020] [Indexed: 06/10/2023]
Abstract
Type I (Methylomicrobium album) and II (Methyloferula stellata) methanotrophs were encapsulated by alginate and polyvinyl alcohol (PVA) to improve methanol production from simulated biogas [methane (CH4) and carbon dioxide (CO2)] in the presence of CH4 vector. Polymeric matrix alginate (2%) and PVA (10%) were found to be optimum for the immobilization of both the methanotrophs, with a relative efficiency of methanol production up to 80.6 and 88.7%, respectively. The stability of methanol production by immobilized cells was improved up to 13.2-fold under repeated batch-culture over free cells. The addition of CH4 vectors showed 1.7-fold higher methanol production on using simulated biogas than in the control. The maximum methanol production of 7.46 and 7.14 mmol/L was noted for PVA-encapsulated M. album and M. stellata, respectively. This study successfully established the beneficial effects of CH4 vectors on methanol production by methanotrophs from greenhouse gases that can be applied for real biogas feedstock.
Collapse
Affiliation(s)
- Sanjay K S Patel
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Ramasamy Shanmugam
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Vipin Chandra Kalia
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Jung-Kul Lee
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea.
| |
Collapse
|
27
|
Švarcová S, Kočí E, Bezdička P, Garrappa S, Kobera L, Plocek J, Brus J, Šťastný M, Hradil D. Uncovering lead formate crystallization in oil-based paintings. Dalton Trans 2020; 49:5044-5054. [PMID: 32186568 DOI: 10.1039/d0dt00327a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Lead carboxylates are an extensive group of compounds studied for their promising industrial applications and for their risky behavior when they are formed in oil paintings as corrosion products of lead-based pigments, leading to serious deterioration of paintings. Although the processes leading to the formation of aggregates, protrusions or inclusions, affecting undesirably the appearance of paintings, are assumed to be long term, neo-formed lead carboxylates are detectable in the early stage of paint drying. To uncover the chemical changes in lead pigments during the drying of oil paint films, model systems consisting of minium (Pb3O4) and four common drying oils were studied by X-ray powder diffraction (XRPD), 13C and 207Pb solid state NMR (ssNMR) spectroscopy and Fourier-transformed infrared spectroscopy (FTIR). For the first time, a degradation mechanism of Pb3O4via the crystallization of lead formate (Pb(HCOO)2), at the end of oxidative polymerization of oil paint films, was uncovered. The formation of formic acid in oils was proved by gas chromatography-mass spectrometry (GC-MS). Vapor experiments evidenced the susceptibility of Pb3O4 to react with volatile formic acid released during the autoxidation of oils comparably to the direct pigment-binder interactions in paint films. The investigation of the local environment of lead atoms in the paint film by 207Pb WURST-CPMG NMR spectroscopy showed that Pb(ii) atoms reacted with linseed oil preferentially to form highly crystalline Pb(HCOO)2, while the local chemical environment of Pb(iv) atoms did not change. The results proved the co-existence of (i) highly crystalline Pb(HCOO)2, (ii) a highly mobile amorphous phase corresponding to free carboxylic acids or a nascent lead soap phase and (iii) the remaining Pb3O4 in the polymeric/ionomeric network. Pb(HCOO)2 is assumed to be an intermediate for the conversion of Pb3O4 to lead soaps and/or lead carbonates.
Collapse
Affiliation(s)
- Silvie Švarcová
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, Husinec-ŘeŽ 1001, 250 68 Husinec-ŘeŽ, Czech Republic.
| | - Eva Kočí
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, Husinec-ŘeŽ 1001, 250 68 Husinec-ŘeŽ, Czech Republic.
| | - Petr Bezdička
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, Husinec-ŘeŽ 1001, 250 68 Husinec-ŘeŽ, Czech Republic.
| | - Silvia Garrappa
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, Husinec-ŘeŽ 1001, 250 68 Husinec-ŘeŽ, Czech Republic.
| | - Libor Kobera
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Praha 6, Czech Republic.
| | - Jiří Plocek
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, Husinec-ŘeŽ 1001, 250 68 Husinec-ŘeŽ, Czech Republic.
| | - Jiří Brus
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Praha 6, Czech Republic.
| | - Martin Šťastný
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, Husinec-ŘeŽ 1001, 250 68 Husinec-ŘeŽ, Czech Republic.
| | - David Hradil
- Institute of Inorganic Chemistry of the Czech Academy of Sciences, Husinec-ŘeŽ 1001, 250 68 Husinec-ŘeŽ, Czech Republic. and Academy of Fine Arts in Prague, ALMA Laboratory, U Akademie 4, 170 22, Prague 7, Czech Republic
| |
Collapse
|
28
|
|
29
|
Lee JK, Patel SKS, Sung BH, Kalia VC. Biomolecules from municipal and food industry wastes: An overview. BIORESOURCE TECHNOLOGY 2020; 298:122346. [PMID: 31734061 DOI: 10.1016/j.biortech.2019.122346] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/23/2019] [Accepted: 10/25/2019] [Indexed: 06/10/2023]
Abstract
Biological wastes generated from food and fruit processing industries, municipal markets, and water treatment facilities are a major cause of concern for Health Departments and Environmentalists around the world. Conventional means of managing these wastes such as transportation, treatment, and disposal, are proving uneconomical. The need is to develop green and sustainable technologies to circumvent this ever-growing and persistent problem. In this article, the potential of diverse microbes to metabolize complex organic rich biowastes into a variety of bioactive compounds with diverse biotechnological applications have been presented. An integrated strategy has been proposed that can be commercially exploited for the recovery of value-adding products ranging from bioactive compounds, chemical building blocks, energy rich chemicals, biopolymers and materials, which results in a self-sustaining circular bioeconomy with nearly zero waste generation and complete degradation.
Collapse
Affiliation(s)
- Jung-Kul Lee
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul 05029, Republic of Korea
| | - Sanjay Kumar Singh Patel
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul 05029, Republic of Korea
| | - Bong Hyun Sung
- Bioenergy and Biochemical Research Center, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Vipin Chandra Kalia
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul 05029, Republic of Korea.
| |
Collapse
|
30
|
Patel SKS, Kalia VC, Joo JB, Kang YC, Lee JK. Biotransformation of methane into methanol by methanotrophs immobilized on coconut coir. BIORESOURCE TECHNOLOGY 2020; 297:122433. [PMID: 31761623 DOI: 10.1016/j.biortech.2019.122433] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Revised: 11/09/2019] [Accepted: 11/12/2019] [Indexed: 06/10/2023]
Abstract
This study aimed to establish a unique approach for the production of methanol from methane (CH4) in the presence of paraffin oil mediated by methanotrophs immobilized on coconut coir (CC). Immobilization of different methanotrophs through covalent method increased the immobilization yield and relative efficiency for methanol production to 48.6% and 96.8%, respectively. In the presence of paraffin oil, methanol production was 1.6-fold higher by Methylocystis bryophila than by control. Compared to free cells, whole cells immobilized on CC showed higher stability for methanol production. Under repeated batch conditions, cumulative methanol production by immobilized cells and free cells, after eight cycles of reuse, was 52.9 and 30.9 mmol/L, respectively. This study effectively demonstrated the beneficial influence of lignocellulosic biowaste CC as support for immobilization of methanotrophs and paraffin oil on bioconversion of CH4 to methanol.
Collapse
Affiliation(s)
- Sanjay K S Patel
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Vipin Chandra Kalia
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Ji Bong Joo
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Yun Chan Kang
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Jung-Kul Lee
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea.
| |
Collapse
|
31
|
Purohit HJ. Aligning Microbial Biodiversity for Valorization of Biowastes: Conception to Perception. Indian J Microbiol 2019; 59:391-400. [PMID: 31762500 DOI: 10.1007/s12088-019-00826-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 09/12/2019] [Indexed: 12/16/2022] Open
Abstract
Generation of biowastes is increasing rapidly and its uncontrolled, slow and persistent fermentation leads to the release of Green-house gases (GHGs) into the environment. Exploration and exploitation of microbial diversity for degrading biowastes can result in producing diverse range of bioactive molecules, which can act as a source of bioenergy, biopolymers, nutraceuticals and antimicrobials. The whole process is envisaged to manage biowastes, and reduce their pollution causing capacity, and lead to a sustainable society. A strategy has been proposed for: (1) producing bioactive molecules, and (2) achieving a zero-pollution emission by recycling of the GHGs through biological routes.
Collapse
Affiliation(s)
- Hemant J Purohit
- Environmental Biotechnology and Genomics Division, CSIR-National Environmental and Engineering Research Institute (CSIR-NEERI), Nehru Marg, Nagpur, Maharashtra 440020 India
| |
Collapse
|
32
|
Patel SKS, Jeon MS, Gupta RK, Jeon Y, Kalia VC, Kim SC, Cho BK, Kim DR, Lee JK. Hierarchical Macroporous Particles for Efficient Whole-Cell Immobilization: Application in Bioconversion of Greenhouse Gases to Methanol. ACS APPLIED MATERIALS & INTERFACES 2019; 11:18968-18977. [PMID: 31046215 DOI: 10.1021/acsami.9b03420] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A viable approach for methanol production under ambient physiological conditions is to use greenhouse gases, methane (CH4) and carbon dioxide (CO2), as feed for immobilized methanotrophs. In the present study, unique macroporous carbon particles with pore sizes in the range of ∼1-6 μm were synthesized and used as support for the immobilization of Methylocella tundrae. Immobilization was accomplished covalently on hierarchical macroporous carbon particles. Maximal cell loading of covalently immobilized M. tundrae was 205 mgDCM g-1 of particles. Among these particles, the cells immobilized on 3.6 μm pore size particles showed the highest reusability with the least leaching and were chosen for further study. After immobilization, M. tundrae showed up to 2.4-fold higher methanol production stability at various pH and temperature values because of higher stability and metabolic activity than free cells. After eight cycles of reuse, the immobilized cells retained 18.1-fold higher relative production stability compared to free cells. Free and immobilized cells exhibited cumulative methanol production of 5.2 and 9.5 μmol mgDCM-1 under repeated batch conditions using simulated biogas [CH4 and CO2, 4:1 (v/v)] as feed, respectively. The appropriate pore size of macroporous particles favors the efficient M. tundrae immobilization to retain better biocatalytic properties. This is the first report concerning the covalent immobilization of methanotrophs on the newly synthesized macroporous carbon particles and its subsequent application in repeated methanol production using simulated biogas as a feed.
Collapse
Affiliation(s)
- Sanjay K S Patel
- Department of Chemical Engineering , Konkuk University , 1 Hwayang-Dong , Gwangjin-Gu, Seoul 05029 , Republic of Korea
| | | | - Rahul K Gupta
- Department of Chemical Engineering , Konkuk University , 1 Hwayang-Dong , Gwangjin-Gu, Seoul 05029 , Republic of Korea
| | | | - Vipin Chandra Kalia
- Department of Chemical Engineering , Konkuk University , 1 Hwayang-Dong , Gwangjin-Gu, Seoul 05029 , Republic of Korea
| | - Sun Chang Kim
- Intelligent Synthetic Biology Center , Daejeon 34141 , Republic of Korea
| | - Byung Kwan Cho
- Intelligent Synthetic Biology Center , Daejeon 34141 , Republic of Korea
| | | | - Jung-Kul Lee
- Department of Chemical Engineering , Konkuk University , 1 Hwayang-Dong , Gwangjin-Gu, Seoul 05029 , Republic of Korea
| |
Collapse
|
33
|
Patel SKS, Kim JH, Kalia VC, Lee JK. Antimicrobial Activity of Amino-Derivatized Cationic Polysaccharides. Indian J Microbiol 2019; 59:96-99. [PMID: 30728636 PMCID: PMC6328405 DOI: 10.1007/s12088-018-0764-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 10/05/2018] [Indexed: 12/31/2022] Open
Abstract
To improve the antimicrobial property of chitosan, water-soluble chitosan modified in their quaternary ammonium groups were synthesized. The antimicrobial properties were evaluated against Escherichia coli, Bacillus subtilis, Saccharomyces cerevisiae and Candida tropicalis. The activities increased with increasing cationic charges and the length of the alkyl chain as follows amino-chitosan, dimethylaminoethyl-chitosan, dimethylpropyl amino-chitosan, dimethylamino-1-propyl-chitosan, diethylaminoethyl (DEAE)-chitosan, and quaternized DEAE-chitosan. The modified cationic chitosans showed high antimicrobial property against B. subtilis-Gram-positive bacteria, but were less active towards yeast (C. tropicalis and S. cerevisiae) and E. coli-Gram-negative bacteria. The simple structure of the Gram-positive bacteria may explain why the cationic chitosan derivatives are more active towards B. subtilis than yeast and E. coli. The target sites of the chitosan derivatives are assumed to be the cytoplasmic membranes of microorganisms. The antimicrobial activities were strongly dependent on the cationic charge and the molecular weight. It can be suggested that these cationic chitosan derivatives have potential as antimicrobial agents.
Collapse
Affiliation(s)
- Sanjay K. S. Patel
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| | - Jung-Hoe Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701 Republic of Korea
| | - Vipin C. Kalia
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| | - Jung-Kul Lee
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| |
Collapse
|
34
|
Patel SKS, Ray S, Prakash J, Wee JH, Kim SY, Lee JK, Kalia VC. Co-digestion of Biowastes to Enhance Biological Hydrogen Process by Defined Mixed Bacterial Cultures. Indian J Microbiol 2019; 59:154-160. [PMID: 31031429 DOI: 10.1007/s12088-018-00777-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 12/24/2018] [Indexed: 01/29/2023] Open
Abstract
Co-digestion of biowastes for hydrogen (H2) production using defined mixed cultures can overcome the high risk of failure due to contamination and imbalanced nutrient status. H2 production from biowastes-pea-shells, potato peels (PP), onion peels (OP) and apple pomace, either individually or in various combinations was evaluated by hydrolyzing with defined hydrolytic mixed bacterial culture (MHC5) and subjecting the hydrolysate to mixture of defined H2 producers (MMC6). Co-digestion of OP and PP hydrolysate supplemented at H2 production stage with GM-2 and M-9 media resulted in 95 and 102 l H2/kg of Total solids (TS), respectively compared to 84 l H2/kg of TS in control. Upscaling the process by digesting 4.0 l slurry (16-fold) resulted in 88.5 and 95 l H2/kg of TS, respectively compared to 72 l H2/kg of TS in control. Thus, H2 production by co-digestion of biowastes could be improved through the supplementation with very dilute medium (0.1 ×) and selection of suitable biowastes under unsterile conditions. The overall efficiency can be further enhanced by integrating it with bioprocesses for biopolymers such as polyhydroxyalkanoates and or biofuels like methane production.
Collapse
Affiliation(s)
- Sanjay K S Patel
- 1Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| | - Subhasree Ray
- 2Department of Microbial Biotechnology and Genomics, CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi University Campus, Delhi, 110007 India
| | - Jyotsana Prakash
- 2Department of Microbial Biotechnology and Genomics, CSIR-Institute of Genomics and Integrative Biology, Mall Road, Delhi University Campus, Delhi, 110007 India
| | - Ji Hyang Wee
- 3Department of Food Science and Biotechnology, Shin-Ansan University, Ansan, 15435 Republic of Korea
| | - Sang-Yong Kim
- 3Department of Food Science and Biotechnology, Shin-Ansan University, Ansan, 15435 Republic of Korea
| | - Jung-Kul Lee
- 1Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| | - Vipin Chandra Kalia
- 1Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 05029 Republic of Korea
| |
Collapse
|
35
|
Rodríguez E, López JC, Prieto P, Merchán L, García-Encina PA, Lebrero R, Muñoz R. Quantitative analysis of methane monooxygenase (MMO) explains process robustness in continuous and feast-famine bioreactors treating methane. CHEMOSPHERE 2018; 212:319-329. [PMID: 30145423 DOI: 10.1016/j.chemosphere.2018.08.091] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 07/25/2018] [Accepted: 08/18/2018] [Indexed: 06/08/2023]
Abstract
The ability of methanotrophs to rapidly respond to intentional or accidental stress conditions caused by operational failures or process fluctuations is of utmost importance to guarantee the robustness of CH4 abatement biotechnologies. In this study, the performance of a continuous and two feast-famine (5:5 days feast-famine cycles) stirred tank reactors treating diluted CH4 emissions (4-5% v/v) was comparatively assessed for 149 days. The robustness of the three bioreactors towards a 5 days CH4 deprivation episode was thoroughly evaluated at a molecular level (pmoA gene expression level) and correlated to macroscopic process performance. The bioreactors recovered their steady-state abatement performance (in terms of CH4 elimination capacity and CO2 production rate) within 1.5-2 h following CH4 supply resumption concomitantly with a maximum in pmoA gene expression, regardless of the previous operational mode. However, while methanotrophs from the continuous unit maintained higher basal levels of pmoA expression as a strategy for a rapid CH4 metabolism initiation, the strategy of the feast-famine adapted-methanotrophs consisted on a more accurate regulation of their pmoA transcripts levels along with a higher and/or more rapid induction of the pmoA gene by CH4 availability.
Collapse
Affiliation(s)
- Elisa Rodríguez
- Department of Chemical Engineering and Environmental Technology, School of Industrial Engineering, University of Valladolid, Dr. Mergelina, s/n, 47011, Valladolid, Spain; Institute of Sustainable Processes, University of Valladolid, Dr. Mergelina, s/n, 47011, Valladolid, Spain
| | - Juan Carlos López
- Department of Chemical Engineering and Environmental Technology, School of Industrial Engineering, University of Valladolid, Dr. Mergelina, s/n, 47011, Valladolid, Spain
| | - Patricia Prieto
- Department of Chemical Engineering and Environmental Technology, School of Industrial Engineering, University of Valladolid, Dr. Mergelina, s/n, 47011, Valladolid, Spain
| | - Laura Merchán
- Department of Chemical Engineering and Environmental Technology, School of Industrial Engineering, University of Valladolid, Dr. Mergelina, s/n, 47011, Valladolid, Spain
| | - Pedro A García-Encina
- Department of Chemical Engineering and Environmental Technology, School of Industrial Engineering, University of Valladolid, Dr. Mergelina, s/n, 47011, Valladolid, Spain; Institute of Sustainable Processes, University of Valladolid, Dr. Mergelina, s/n, 47011, Valladolid, Spain
| | - Raquel Lebrero
- Department of Chemical Engineering and Environmental Technology, School of Industrial Engineering, University of Valladolid, Dr. Mergelina, s/n, 47011, Valladolid, Spain; Institute of Sustainable Processes, University of Valladolid, Dr. Mergelina, s/n, 47011, Valladolid, Spain
| | - Raúl Muñoz
- Department of Chemical Engineering and Environmental Technology, School of Industrial Engineering, University of Valladolid, Dr. Mergelina, s/n, 47011, Valladolid, Spain; Institute of Sustainable Processes, University of Valladolid, Dr. Mergelina, s/n, 47011, Valladolid, Spain.
| |
Collapse
|
36
|
Methane as a Substrate for Energy Generation Using Microbial Fuel Cells. Indian J Microbiol 2018; 59:121-124. [PMID: 30728642 DOI: 10.1007/s12088-018-0765-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 10/15/2018] [Indexed: 10/28/2022] Open
Abstract
Methane (CH4) is a well-known and abundant feedstock for natural gas, and is readily available from various sources. In thermal plants, the CH4 generated from anthropogenic sources is converted into electrical energy via combustion. Microbial fuel cell (MFC) technology has proven to be an efficient strategy for the biological conversion of a many substrates, including biogas (CH4), to electricity. MFC technology uses gaseous substrate along with an enriched and selective microbial consortium. Predominantly, methanotrophs and electrochemically active Geobacter were utilized in a syntrophic association on the anode of an MFC. This review focuses on the exploitation of CH4 as a substrate for bioelectrogenesis via MFCs.
Collapse
|
37
|
Patel SKS, Kumar V, Mardina P, Li J, Lestari R, Kalia VC, Lee JK. Methanol production from simulated biogas mixtures by co-immobilized Methylomonas methanica and Methylocella tundrae. BIORESOURCE TECHNOLOGY 2018; 263:25-32. [PMID: 29729538 DOI: 10.1016/j.biortech.2018.04.096] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Revised: 04/21/2018] [Accepted: 04/23/2018] [Indexed: 06/08/2023]
Abstract
In the present study, co-cultures of the methanotrophs Methylocella tundrae, Methyloferula stellata, and Methylomonas methanica were evaluated for improving methanol production with their application. Among the different combinations, the co-culture of M. tundrae and M. methanica increased methanol production to 4.87 mM using methane (CH4) as feed. When simulated biogas mixtures were used as feed, the maximum methanol production was improved to 8.66, 8.45, and 9.65 mM by free and encapsulated co-cultures in 2% alginate and silica-gel, respectively. Under repeated batch conditions, free and immobilized co-cultures using alginate and silica-gel resulted in high cumulative production, up to 24.43, 35.95, and 47.35 mM, using simulated biohythane (CH4 and hydrogen), respectively. This is the first report of methanol production from defined free and immobilized co-cultures using simulated biogas mixtures as feed.
Collapse
Affiliation(s)
- Sanjay K S Patel
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Virendra Kumar
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Primata Mardina
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Jinglin Li
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Rowina Lestari
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Vipin C Kalia
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Jung-Kul Lee
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea.
| |
Collapse
|
38
|
Beyond the Theoretical Yields of Dark-Fermentative Biohydrogen. Indian J Microbiol 2018; 58:529-530. [PMID: 30262965 DOI: 10.1007/s12088-018-0759-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 08/09/2018] [Indexed: 12/31/2022] Open
Abstract
Theoretical hydrogen (H2) yield by dark fermentative route is 12 mol/mol of glucose. Biological H2 production yields of 3.8 mol/mol of glucose by microbes have been reported. Transient gene inactivation in combination with adaptive laboratory evolution strategy has enabled the H2 yield to exceed the stoichiometric production values.
Collapse
|
39
|
Bolzonella D, Battista F, Cavinato C, Gottardo M, Micolucci F, Lyberatos G, Pavan P. Recent developments in biohythane production from household food wastes: A review. BIORESOURCE TECHNOLOGY 2018; 257:311-319. [PMID: 29501273 DOI: 10.1016/j.biortech.2018.02.092] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 02/19/2018] [Accepted: 02/20/2018] [Indexed: 06/08/2023]
Abstract
Biohythane is a hydrogen-methane blend with hydrogen concentration between 10 and 30% v/v. It can be produced from different organic substrates by two sequential anaerobic stages: a dark fermentation step followed by a second an anaerobic digestion step, for hydrogen and methane production, respectively. The advantages of this blend compared to either hydrogen or methane, as separate biofuels, are first presented in this work. The two-stage anaerobic process and the main operative parameters are then discussed. Attention is focused on the production of biohythane from household food wastes, one of the most abundant organic substrate available for anaerobic digestion: the main milestones and the future trends are exposed. In particular, the possibility to co-digest food wastes and sewage sludge to improve the process yield is discussed. Finally, the paper illustrates the developments of biohythane application in the automotive sector as well as its reduced environmental burden.
Collapse
Affiliation(s)
- David Bolzonella
- Dipartimento di Biotecnologie, Università degli Studi di Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Federico Battista
- Dipartimento di Biotecnologie, Università degli Studi di Verona, Strada Le Grazie 15, 37134 Verona, Italy.
| | - Cristina Cavinato
- Dipartimento di Scienze Ambientali, Informatica e Statistica, Università Ca' Foscari, Dorsoduro 3246, 30123 Venezia, Italy
| | - Marco Gottardo
- Dipartimento di Scienze Ambientali, Informatica e Statistica, Università Ca' Foscari, Dorsoduro 3246, 30123 Venezia, Italy
| | - Federico Micolucci
- Faculty of Engineering, Department of Chemical Engineering, Lund University, SE-221 00 Lund, Sweden
| | - Gerasimos Lyberatos
- School of Chemical Engineering, National Technical University of Athens, Zografou 15780, Greece
| | - Paolo Pavan
- Dipartimento di Scienze Ambientali, Informatica e Statistica, Università Ca' Foscari, Dorsoduro 3246, 30123 Venezia, Italy
| |
Collapse
|
40
|
Ghaz-Jahanian MA, Khoshfetrat AB, Hosseinian Rostami M, Haghighi Parapari M. An innovative bioprocess for methane conversion to methanol using an efficient methane transfer chamber coupled with an airlift bioreactor. Chem Eng Res Des 2018. [DOI: 10.1016/j.cherd.2018.03.039] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
41
|
Patel SKS, Otari SV, Li J, Kim DR, Kim SC, Cho BK, Kalia VC, Kang YC, Lee JK. Synthesis of cross-linked protein-metal hybrid nanoflowers and its application in repeated batch decolorization of synthetic dyes. JOURNAL OF HAZARDOUS MATERIALS 2018; 347:442-450. [PMID: 29353189 DOI: 10.1016/j.jhazmat.2018.01.003] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 12/30/2017] [Accepted: 01/03/2018] [Indexed: 06/07/2023]
Abstract
Herein, we report the preparation of a cross-linked protein-metal hybrid nanoflower (NF) system for laccase immobilization. The immobilized laccase showed effective encapsulation yield and activity recovery of 78.1% and 204%, respectively. The catalytic efficiency (kcatVmax-1) of cross-linked NF (CL-NF) was 2.2-fold more than that of free laccase. The CL-NF also exhibited significantly higher stability towards pH and temperature changes. It exhibited excellent storage stability and tolerance towards solvents and inhibitors as compared with the free enzyme. After 10 cycles of reuses, the NF and CL-NF laccase showed 41.2% and 92.3% residual activity, respectively. The CL-NF showed high oxidation potential, 265% that of the free enzyme, towards phenolic compounds. The CL-NF laccase retained the residual decolorization efficiency of up to 84.6% for synthetic dyes under repeated batch conditions of 10 cycles. These results suggested that the preparation of CL-NF is an effective approach to enhance the enzymatic properties and has great potential in many industrial applications.
Collapse
Affiliation(s)
- Sanjay K S Patel
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Sachin V Otari
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Jinglin Li
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Dong Rip Kim
- School of Mechanical Engineering, Hanyang University, Seoul 04763, Republic of Korea; Institute of Nano Science and Technology, Hanyang University, Seoul 04763, Republic of Korea
| | - Sun Chang Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea; KAIST Institute for the BioCentury, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea; Intelligent Synthetic Biology Center, Daejeon 34141, Republic of Korea
| | - Byung-Kwan Cho
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea; KAIST Institute for the BioCentury, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea; Intelligent Synthetic Biology Center, Daejeon 34141, Republic of Korea
| | - Vipin C Kalia
- CSIR-Institute of Genomics and Integrative Biology (IGIB), Delhi University Campus, Mall Road, Delhi 11 00 07, India
| | - Yun Chan Kang
- Department of Materials Science and Engineering, Korea University, Anam-Dong, Seongbuk-Gu, Seoul 136-713, Republic of Korea.
| | - Jung-Kul Lee
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-dong, Gwangjin-gu, Seoul 05029, Republic of Korea.
| |
Collapse
|
42
|
Patel SK, Anwar MZ, Kumar A, Otari SV, Pagolu RT, Kim SY, Kim IW, Lee JK. Fe2O3 yolk-shell particle-based laccase biosensor for efficient detection of 2,6-dimethoxyphenol. Biochem Eng J 2018. [DOI: 10.1016/j.bej.2017.12.013] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
43
|
Dai Z, Gu H, Zhang S, Xin F, Zhang W, Dong W, Ma J, Jia H, Jiang M. Metabolic construction strategies for direct methanol utilization in Saccharomyces cerevisiae. BIORESOURCE TECHNOLOGY 2017; 245:1407-1412. [PMID: 28554521 DOI: 10.1016/j.biortech.2017.05.100] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 05/15/2017] [Accepted: 05/16/2017] [Indexed: 06/07/2023]
Abstract
The aim of this study was to metabolically construct Saccharomyces cerevisiae for achievement of direct methanol utilization and value added product (mainly pyruvate) production. After successful integration of methanol oxidation pathway originated from Pichia pastoris into the chromosome of S. cerevisiae, the recombinant showed 1.04g/L consumption of methanol and 3.13% increase of cell growth (OD600) when using methanol as the sole carbon source. Moreover, 0.26g/L of pyruvate was detected in the fermentation broth. The supplementation of 1g/L yeast extract could further improve cell growth with increase of 11.70% and methanol consumption to 2.35g/L. This represents the first genetically modified non-methylotrophic eukaryotic microbe for direct methanol utilization and would be of great value concerning the development of biotechnological processes.
Collapse
Affiliation(s)
- Zhongxue Dai
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, PR China.
| | - Honglian Gu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, PR China.
| | - Shangjie Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, PR China.
| | - Fengxue Xin
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, PR China.
| | - Wenming Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, PR China; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211800, PR China.
| | - Weiliang Dong
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, PR China.
| | - Jiangfeng Ma
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, PR China.
| | - Honghua Jia
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, PR China; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211800, PR China.
| | - Min Jiang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, PR China; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211800, PR China.
| |
Collapse
|
44
|
Wang X, Wang Y, Liu J, Li Q, Zhang Z, Zheng P, Lu F, Sun J. Biological conversion of methanol by evolved Escherichia coli carrying a linear methanol assimilation pathway. BIORESOUR BIOPROCESS 2017. [DOI: 10.1186/s40643-017-0172-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
45
|
Patel SKS, Lee JK, Kalia VC. Nanoparticles in Biological Hydrogen Production: An Overview. Indian J Microbiol 2017; 58:8-18. [PMID: 29434392 DOI: 10.1007/s12088-017-0678-9] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 09/19/2017] [Indexed: 12/19/2022] Open
Abstract
Biological hydrogen (H2) production enhancement through the use of nanoparticles (NPs) supplement in the media is being recognized as a promising approach. The NPs, including those of metal and metal oxides have shown a significant improvement in the BHP. A number of organisms as pure or mixed cultures can produce H2 in presence of NPs from pure sugars and biowaste as a feed. However, their H2 production efficiencies have been found to vary significantly with the type of NPs and their concentration. In this review article, the potential role of NPs in the enhancement of H2 production has been assessed in dark- and photo-fermentative organisms using sugars and biowaste materials as feed. Further, the integrative approaches for commercial applications of NPs in BHP have been discussed.
Collapse
Affiliation(s)
- Sanjay K S Patel
- 1Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 143-701 Korea.,2Microbial Biotechnology and Genomics, CSIR-Institute of Genomics and Integrative Biology (IGIB), Delhi University Campus, Mall Road, Delhi, 110007 India
| | - Jung-Kul Lee
- 1Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul, 143-701 Korea
| | - Vipin C Kalia
- 2Microbial Biotechnology and Genomics, CSIR-Institute of Genomics and Integrative Biology (IGIB), Delhi University Campus, Mall Road, Delhi, 110007 India
| |
Collapse
|
46
|
Sheets JP, Lawson K, Ge X, Wang L, Yu Z, Li Y. Development and evaluation of a trickle bed bioreactor for enhanced mass transfer and methanol production from biogas. Biochem Eng J 2017. [DOI: 10.1016/j.bej.2017.03.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
47
|
Patel SKS, Otari SV, Chan Kang Y, Lee JK. Protein–inorganic hybrid system for efficient his-tagged enzymes immobilization and its application in l-xylulose production. RSC Adv 2017. [DOI: 10.1039/c6ra24404a] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Efficient his-tagged recombinant enzyme nanoflowers were synthesized and used for rare sugar production under co-factor regeneration conditions.
Collapse
Affiliation(s)
| | - Sachin V. Otari
- Department of Chemical Engineering
- Konkuk University
- Seoul
- South Korea
| | - Yun Chan Kang
- Department of Materials Science and Engineering
- Korea University
- Seoul
- South Korea
| | - Jung-Kul Lee
- Department of Chemical Engineering
- Konkuk University
- Seoul
- South Korea
| |
Collapse
|