1
|
Bassu G, Laurati M, Fratini E. Transition from active motion to anomalous diffusion for Bacillus subtilis confined in hydrogel matrices. Colloids Surf B Biointerfaces 2024; 236:113797. [PMID: 38431996 DOI: 10.1016/j.colsurfb.2024.113797] [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: 08/02/2023] [Revised: 12/06/2023] [Accepted: 02/11/2024] [Indexed: 03/05/2024]
Abstract
We investigate the motility of B. subtilis under different degrees of confinement induced by transparent porous hydrogels. The dynamical behavior of the bacteria at short times is linked to characteristic parameters describing the hydrogel porosity. Mean squared displacements (MSDs) reveal that the run-and-tumble dynamics of unconfined B. subtilis progressively turns into sub-diffusive motion with increasing confinement. Correspondingly, the median instantaneous velocity of bacteria decreases and becomes more narrowly distributed, while the reorientation rate increases and reaches a plateau value. Analyzing single-trajectories, we show that the average dynamical behavior is the result of complex displacements, in which active, diffusive and sub-diffusive segments coexist. For small and moderate confinements, the number of active segments reduces, while the diffusive and sub-diffusive segments increase. The alternation of sub-diffusion, diffusion and active motion along the same trajectory can be described as a hopping ad trapping motion, in which hopping events correspond to displacements with an instantaneous velocity exceeding the corresponding mean value along a trajectory. Different from previous observations, escape from local trapping occurs for B. subtilis through active runs but also diffusion. Interestingly, the contribution of diffusion is maximum at intermediate confinements. At sufficiently long times transport coefficients estimated from the experimental MSDs under different degrees of confinement can be reproduced using a recently proposed hopping and trapping model. Finally, we propose a quantitative relationship linking the median velocity of confined and unconfined bacteria through the characteristic confinement length of the hydrogel matrix. Our work provides new insights for the bacterial motility in complex media that mimic natural environments and are relevant to important problems like sterilization, water purification, biofilm formation, membrane permeation and bacteria separation.
Collapse
Affiliation(s)
- Gavino Bassu
- Department of Chemistry "Ugo Schiff", Via della Lastruccia 3, Sesto Fiorentino 50019, Italy; Consorzio per lo Sviluppo dei Sistemi a Grande Interfase (CSGI)), Via della Lastruccia 3, Sesto Fiorentino 50019, Italy
| | - Marco Laurati
- Department of Chemistry "Ugo Schiff", Via della Lastruccia 3, Sesto Fiorentino 50019, Italy; Consorzio per lo Sviluppo dei Sistemi a Grande Interfase (CSGI)), Via della Lastruccia 3, Sesto Fiorentino 50019, Italy.
| | - Emiliano Fratini
- Department of Chemistry "Ugo Schiff", Via della Lastruccia 3, Sesto Fiorentino 50019, Italy; Consorzio per lo Sviluppo dei Sistemi a Grande Interfase (CSGI)), Via della Lastruccia 3, Sesto Fiorentino 50019, Italy
| |
Collapse
|
2
|
Catalytic systems mimicking the [FeFe]-hydrogenase active site for visible-light-driven hydrogen production. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214172] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
3
|
Abstract
Understanding the motility behavior of bacteria in confining microenvironments, in which they search for available physical space and move in response to stimuli, is important for environmental, food industry, and biomedical applications. We studied the motility of five bacterial species with various sizes and flagellar architectures (Vibrio natriegens, Magnetococcus marinus, Pseudomonas putida, Vibrio fischeri, and Escherichia coli) in microfluidic environments presenting various levels of confinement and geometrical complexity, in the absence of external flow and concentration gradients. When the confinement is moderate, such as in quasi-open spaces with only one limiting wall, and in wide channels, the motility behavior of bacteria with complex flagellar architectures approximately follows the hydrodynamics-based predictions developed for simple monotrichous bacteria. Specifically, V. natriegens and V. fischeri moved parallel to the wall and P. putida and E. coli presented a stable movement parallel to the wall but with incidental wall escape events, while M. marinus exhibited frequent flipping between wall accumulator and wall escaper regimes. Conversely, in tighter confining environments, the motility is governed by the steric interactions between bacteria and the surrounding walls. In mesoscale regions, where the impacts of hydrodynamics and steric interactions overlap, these mechanisms can either push bacteria in the same directions in linear channels, leading to smooth bacterial movement, or they could be oppositional (e.g., in mesoscale-sized meandered channels), leading to chaotic movement and subsequent bacterial trapping. The study provides a methodological template for the design of microfluidic devices for single-cell genomic screening, bacterial entrapment for diagnostics, or biocomputation.
Collapse
|
4
|
Production of Biohydrogen and/or Poly-β-hydroxybutyrate by Rhodopseudomonas sp. Using Various Carbon Sources as Substrate. Appl Biochem Biotechnol 2020; 193:307-318. [PMID: 32954484 DOI: 10.1007/s12010-020-03428-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 09/11/2020] [Indexed: 10/23/2022]
Abstract
The polyhydroxyalkanoates (PHA) are family of biopolyesters synthesized by numerous bacteria which are attracting a great attention due to their thermoplastic properties. Polyhydroxybutyrate (PHB) is the most common type of PHA which presents thermoplastic and biodegradable properties. It is synthesized under stressful conditions by heterotrophic bacteria and many photosynthetic microorganisms such as purple non-sulfur bacteria and cyanobacteria. Biological hydrogen (H2) production is being evaluated for use as a fuel since it is a promising substitute for carbonaceous fuels owing to its high conversion efficiency and high specific content. In the present work, the purple non-sulfur photosynthetic bacterium Rhodopseudomonas sp. for the simultaneous H2 photo-evolution and poly-β-hydroxybutyrate (PHB) production has been investigated. Three different types of carbon sources were tested in the presence of glutamate as a nitrogen source in a batch cultivation system, under continuous irradiance. The results indicated the fact that the type of carbon source in the culture broth affects in various ways the metabolic activity of the bacterial biomass, as evidenced by the production of PHB and/or H2 and biomass. The best carbon source for PHB accumulation and H2 production by Rhodopseudomonas sp. turned out to be the acetate, having the highest H2 production (2286 mL/L) and PHB accumulation (68.99 mg/L, 18.28% of cell dry weight).
Collapse
|
5
|
Das SR, Basak N. Molecular biohydrogen production by dark and photo fermentation from wastes containing starch: recent advancement and future perspective. Bioprocess Biosyst Eng 2020; 44:1-25. [PMID: 32785789 DOI: 10.1007/s00449-020-02422-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 08/05/2020] [Indexed: 01/15/2023]
Abstract
Changing lifestyle is increasing the energy demand. Fossil fuel is unable to deliver such huge energy. Clean energy from renewable source can solve this problem. Hydrogen is a clean and energy-efficient fuel and used for electricity generation by fuel cells or can be used in combustion engine. Easy availability of starch wastes from different industrial food processing wastes makes it a potential source for hydrogen (H2) generation. Among various processes such as steam reforming, electrolysis, biophotolysis of water and anaerobic fermentation, anaerobic fermentation technique is environmentally friendly and requires less external energy, making it a preferred process for H2 generation. Dark fermentation process can use wide range of substrates including agricultural and industrial starchy waste with low level of undesirable compounds. Application of both anaerobic dark and photofermentation can improve H2 yield and production rate. H2 production from wastes containing starch serves dual benefit of waste reduction and energy generation. As starch is a polymer and all hydrogen-producing bacteria cannot produce amylase to hydrolyze it, a pretreatment step is required to convert starch into glucose and maltose. In this present review paper, we have summarized: (i) potential of various types of starch-containing wastes as feedstock, (ii) various fermentation techniques, (iii) optimization of external process parameter, (iv) application of bioreactor and simulation in fermentation technique and (v) advancement in H2 production from starchy wastes.
Collapse
Affiliation(s)
- Satya Ranjan Das
- Department of Biotechnology, Dr. B.R. Ambedkar National Institute of Technology, Jalandhar, Punjab, 144011, India
| | - Nitai Basak
- Department of Biotechnology, Dr. B.R. Ambedkar National Institute of Technology, Jalandhar, Punjab, 144011, India.
| |
Collapse
|
6
|
Yuasa K, Shikata T, Kitatsuji S, Yamasaki Y, Nishiyama Y. Extracellular secretion of superoxide is regulated by photosynthetic electron transport in the noxious red-tide-forming raphidophyte Chattonella antiqua. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2020; 205:111839. [PMID: 32146272 DOI: 10.1016/j.jphotobiol.2020.111839] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 02/11/2020] [Accepted: 02/21/2020] [Indexed: 12/28/2022]
Abstract
The raphidophyte Chattonella antiqua is a noxious red-tide-forming alga that harms fish culture and the aquatic environment. Chattonella antiqua produces and secretes superoxide anions (O2-), and excessive secretion of O2- into the water has been associated with fish mortality. It is known that strong light stimulates the production of O2- in Chattonella spp. but the mechanism of the light-induced production of O2- remains to be clarified. In the present study, we examined the effects of light on extracellular levels of O2- and photosynthesis in C. antiqua. Extracellular levels of O2- rose during growth under high-intensity light, and the level of O2- was correlated with the photosynthetic parameter qP, which reflects the rate of transport of electrons downstream of photosystem II. The production of O2- was inhibited in the presence of 3-(3,4-dichlorophenyl)-1,1-dimethylurea, an inhibitor of photosynthetic electron transport, suggesting that reducing power derived from electron transport might be required for the production of O2-. By contrast, the production of O2- was enhanced in the presence of glycolaldehyde, an inhibitor of the Calvin-Benson cycle, suggesting that the accumulation of NADPH might stimulate the production of O2-. Thus, it is likely that the production of O2- is regulated by photosynthesis in C. antiqua.
Collapse
Affiliation(s)
- Koki Yuasa
- Department of Biochemistry and Molecular Biology, Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Tomoyuki Shikata
- National Research Institute of Fisheries and Environment of Inland Sea, Fisheries Research and Education Agency, 2-17-5 Maruishi, Hatsukaichi, Hiroshima 738-8635, Japan
| | - Saho Kitatsuji
- National Research Institute of Fisheries and Environment of Inland Sea, Fisheries Research and Education Agency, 2-17-5 Maruishi, Hatsukaichi, Hiroshima 738-8635, Japan
| | - Yasuhiro Yamasaki
- Department of Applied Aquabiology, National Fisheries University, Fisheries Research and Education Agency, 2-7-1 Nagatahonmachi, Shimonoseki, Yamaguchi 759-6595, Japan
| | - Yoshitaka Nishiyama
- Department of Biochemistry and Molecular Biology, Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan.
| |
Collapse
|
7
|
Sharma P, Jang J, Lee JS. Key Strategies to Advance the Photoelectrochemical Water Splitting Performance of α‐Fe2O3Photoanode. ChemCatChem 2018. [DOI: 10.1002/cctc.201801187] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Pankaj Sharma
- Department of Energy Engineering School of Energy and Chemical EngineeringUlsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of Korea
| | - Ji‐Wook Jang
- Department of Energy Engineering School of Energy and Chemical EngineeringUlsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of Korea
| | - Jae Sung Lee
- Department of Energy Engineering School of Energy and Chemical EngineeringUlsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of Korea
| |
Collapse
|
8
|
Gonzalez-Ballester D, Jurado-Oller JL, Fernandez E. Relevance of nutrient media composition for hydrogen production in Chlamydomonas. PHOTOSYNTHESIS RESEARCH 2015; 125:395-406. [PMID: 25952745 DOI: 10.1007/s11120-015-0152-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 04/29/2015] [Indexed: 05/23/2023]
Abstract
Microalgae are capable of biological H2 photoproduction from water, solar energy, and a variety of organic substrates. Acclimation responses to different nutrient regimes finely control photosynthetic activity and can influence H2 production. Hence, nutrient stresses are an interesting scenario to study H2 production in photosynthetic organisms. In this review, we mainly focus on the H2-production mechanisms in Chlamydomonas reinhardtii and the physiological relevance of the nutrient media composition when producing H2.
Collapse
Affiliation(s)
- David Gonzalez-Ballester
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias, Universidad de Córdoba, Campus de Rabanales, Edif. Severo Ochoa, 14071, Córdoba, Spain,
| | | | | |
Collapse
|
9
|
Assawamongkholsiri T, Reungsang A. Photo-fermentational hydrogen production of Rhodobacter sp. KKU-PS1 isolated from an UASB reactor. ELECTRON J BIOTECHN 2015. [DOI: 10.1016/j.ejbt.2015.03.011] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
10
|
Shrivastava DC, Kisku AV, Saxena M, Deswal R, Sarin NB. Stress inducible cytosolic ascorbate peroxidase (Ahcapx) from Arachis hypogaea cell lines confers salinity and drought stress tolerance in transgenic tobacco. THE NUCLEUS 2015. [DOI: 10.1007/s13237-015-0134-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
|
11
|
Jurado-Oller JL, Dubini A, Galván A, Fernández E, González-Ballester D. Low oxygen levels contribute to improve photohydrogen production in mixotrophic non-stressed Chlamydomonas cultures. BIOTECHNOLOGY FOR BIOFUELS 2015; 8:149. [PMID: 26388936 PMCID: PMC4573693 DOI: 10.1186/s13068-015-0341-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 09/10/2015] [Indexed: 05/09/2023]
Abstract
BACKGROUND Currently, hydrogen fuel is derived mainly from fossil fuels, but there is an increasing interest in clean and sustainable technologies for hydrogen production. In this context, the ability of some photosynthetic microorganisms, particularly cyanobacteria and microalgae, to produce hydrogen is a promising alternative for renewable, clean-energy production. Among a diverse array of photosynthetic microorganisms able to produce hydrogen, the green algae Chlamydomonas reinhardtii is the model organism widely used to study hydrogen production. Despite the well-known fact that acetate-containing medium enhances hydrogen production in this algae, little is known about the precise role of acetate during this process. RESULTS We have examined several physiological aspects related to acetate assimilation in the context of hydrogen production metabolism. Measurements of oxygen and CO2 levels, acetate uptake, and cell growth were performed under different light conditions, and oxygenic regimes. We show that oxygen and light intensity levels control acetate assimilation and modulate hydrogen production. We also demonstrate that the determination of the contribution of the PSII-dependent hydrogen production pathway in mixotrophic cultures, using the photosynthetic inhibitor DCMU, can lead to dissimilar results when used under various oxygenic regimes. The level of inhibition of DCMU in hydrogen production under low light seems to be linked to the acetate uptake rates. Moreover, we highlight the importance of releasing the hydrogen partial pressure to avoid an inherent inhibitory factor on the hydrogen production. CONCLUSION Low levels of oxygen allow for low acetate uptake rates, and paradoxically, lead to efficient and sustained production of hydrogen. Our data suggest that acetate plays an important role in the hydrogen production process, during non-stressed conditions, other than establishing anaerobiosis, and independent of starch accumulation. Potential metabolic pathways involved in hydrogen production in mixotrophic cultures are discussed. Mixotrophic nutrient-replete cultures under low light are shown to be an alternative for the simultaneous production of hydrogen and biomass.
Collapse
Affiliation(s)
- Jose Luis Jurado-Oller
- />Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias, Universidad de Córdoba, Campus de Rabanales, Edif. Severo Ochoa, 14071 Córdoba, Spain
| | - Alexandra Dubini
- />Biosciences Center, National Renewable Energy Laboratory (NREL), 15013 Denver West Parkway, Golden, CO 80401 USA
| | - Aurora Galván
- />Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias, Universidad de Córdoba, Campus de Rabanales, Edif. Severo Ochoa, 14071 Córdoba, Spain
| | - Emilio Fernández
- />Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias, Universidad de Córdoba, Campus de Rabanales, Edif. Severo Ochoa, 14071 Córdoba, Spain
| | - David González-Ballester
- />Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias, Universidad de Córdoba, Campus de Rabanales, Edif. Severo Ochoa, 14071 Córdoba, Spain
| |
Collapse
|
12
|
|
13
|
Cabassi J, Tassi F, Mapelli F, Borin S, Calabrese S, Rouwet D, Chiodini G, Marasco R, Chouaia B, Avino R, Vaselli O, Pecoraino G, Capecchiacci F, Bicocchi G, Caliro S, Ramirez C, Mora-Amador R. Geosphere-biosphere interactions in bio-activity volcanic lakes: evidences from Hule and Rìo Cuarto (Costa Rica). PLoS One 2014; 9:e102456. [PMID: 25058537 PMCID: PMC4109938 DOI: 10.1371/journal.pone.0102456] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Accepted: 06/19/2014] [Indexed: 11/18/2022] Open
Abstract
Hule and Río Cuarto are maar lakes located 11 and 18 km N of Poás volcano along a 27 km long fracture zone, in the Central Volcanic Range of Costa Rica. Both lakes are characterized by a stable thermic and chemical stratification and recently they were affected by fish killing events likely related to the uprising of deep anoxic waters to the surface caused by rollover phenomena. The vertical profiles of temperature, pH, redox potential, chemical and isotopic compositions of water and dissolved gases, as well as prokaryotic diversity estimated by DNA fingerprinting and massive 16S rRNA pyrosequencing along the water column of the two lakes, have highlighted that different bio-geochemical processes occur in these meromictic lakes. Although the two lakes host different bacterial and archaeal phylogenetic groups, water and gas chemistry in both lakes is controlled by the same prokaryotic functions, especially regarding the CO2-CH4 cycle. Addition of hydrothermal CO2 through the bottom of the lakes plays a fundamental priming role in developing a stable water stratification and fuelling anoxic bacterial and archaeal populations. Methanogens and methane oxidizers as well as autotrophic and heterotrophic aerobic bacteria responsible of organic carbon recycling resulted to be stratified with depth and strictly related to the chemical-physical conditions and availability of free oxygen, affecting both the CO2 and CH4 chemical concentrations and their isotopic compositions along the water column. Hule and Río Cuarto lakes were demonstrated to contain a CO2 (CH4, N2)-rich gas reservoir mainly controlled by the interactions occurring between geosphere and biosphere. Thus, we introduced the term of bio-activity volcanic lakes to distinguish these lakes, which have analogues worldwide (e.g. Kivu: D.R.C.-Rwanda; Albano, Monticchio and Averno: Italy; Pavin: France) from volcanic lakes only characterized by geogenic CO2 reservoir such as Nyos and Monoun (Cameroon).
Collapse
Affiliation(s)
- Jacopo Cabassi
- Dipartimento di Scienze della Terra, University of Florence, Florence, Italy
| | - Franco Tassi
- Dipartimento di Scienze della Terra, University of Florence, Florence, Italy
- CNR – Istituto di Geoscienze e Georisorse, Florence, Italy
| | - Francesca Mapelli
- Department of Food, Environmental and Nutritional Sciences, University of Milan, Milan, Italy
| | - Sara Borin
- Department of Food, Environmental and Nutritional Sciences, University of Milan, Milan, Italy
| | - Sergio Calabrese
- Dipartimento di Scienze della Terra e del Mare, University of Palermo, Palermo, Italy
| | - Dmitri Rouwet
- Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Bologna, Bologna, Italy
| | - Giovanni Chiodini
- Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Vesuviano, Naples, Italy
| | - Ramona Marasco
- Department of Food, Environmental and Nutritional Sciences, University of Milan, Milan, Italy
| | - Bessem Chouaia
- Department of Food, Environmental and Nutritional Sciences, University of Milan, Milan, Italy
| | - Rosario Avino
- Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Vesuviano, Naples, Italy
| | - Orlando Vaselli
- Dipartimento di Scienze della Terra, University of Florence, Florence, Italy
- CNR – Istituto di Geoscienze e Georisorse, Florence, Italy
| | | | - Francesco Capecchiacci
- Dipartimento di Scienze della Terra, University of Florence, Florence, Italy
- CNR – Istituto di Geoscienze e Georisorse, Florence, Italy
| | - Gabriele Bicocchi
- Dipartimento di Scienze della Terra, University of Florence, Florence, Italy
| | - Stefano Caliro
- Istituto Nazionale di Geofisica e Vulcanologia, Osservatorio Vesuviano, Naples, Italy
| | - Carlos Ramirez
- Centro de Investigaciones en Ciencias Geológicas, Escuela Centroamericana de Geología, Red Sismológica Nacional, Universidad de Costa Rica, San Jose, Costa Rica
| | - Raul Mora-Amador
- Centro de Investigaciones en Ciencias Geológicas, Escuela Centroamericana de Geología, Red Sismológica Nacional, Universidad de Costa Rica, San Jose, Costa Rica
| |
Collapse
|
14
|
Monroy CI, Zlatev R, Stoytcheva M, González RER, Valdez B, Gochev V. Light Spectra and Luminosity Influence on Photosynthetic Hydrogen Production byRhodobacter Capsulatus. BIOTECHNOL BIOTEC EQ 2014. [DOI: 10.5504/bbeq.2012.0130] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
|
15
|
Robledo-Narváez PN, Muñoz-Páez KM, Poggi-Varaldo HM, Ríos-Leal E, Calva-Calva G, Ortega-Clemente LA, Rinderknecht-Seijas N, Estrada-Vázquez C, Ponce-Noyola MT, Salazar-Montoya JA. The influence of total solids content and initial pH on batch biohydrogen production by solid substrate fermentation of agroindustrial wastes. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2013; 128:126-137. [PMID: 23732191 DOI: 10.1016/j.jenvman.2013.04.042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Revised: 04/04/2013] [Accepted: 04/17/2013] [Indexed: 06/02/2023]
Abstract
Hydrogen is a valuable clean energy source, and its production by biological processes is attractive and environmentally sound and friendly. In México 5 million tons/yr of agroindustrial wastes are generated; these residues are rich in fermentable organic matter that can be used for hydrogen production. On the other hand, batch, intermittently vented, solid substrate fermentation of organic waste has attracted interest in the last 10 years. Thus the objective of our work was to determine the effect of initial total solids content and initial pH on H2 production in batch fermentation of a substrate that consisted of a mixture of sugarcane bagasse, pineapple peelings, and waste activated sludge. The experiment was a response surface based on 2(2) factorial with central and axial points with initial TS (15-35%) and initial pH (6.5-7.5) as factors. Fermentation was carried out at 35 °C, with intermittent venting of minireactors and periodic flushing with inert N2 gas. Up to 5 cycles of H2 production were observed; the best treatment in our work showed cumulative H2 productions (ca. 3 mmol H2/gds) with 18% and 6.65 initial TS and pH, respectively. There was a significant effect of TS on production of hydrogen, the latter decreased with initial TS increase from 18% onwards. Cumulative H2 productions achieved in this work were higher than those reported for organic fraction of municipal solid waste (OFMSW) and mixtures of OFMSW and fruit peels waste from fruit juice industry, using the same process. Specific energetic potential due to H2 in our work was attractive and fell in the high side of the range of reported results in the open literature. Batch dark fermentation of agrowastes as practiced in our work could be useful for future biorefineries that generate biohydrogen as a first step and could influence the management of this type of agricultural wastes in México and other countries and regions as well.
Collapse
Affiliation(s)
- Paula N Robledo-Narváez
- Dept. of Biotechnology and Bioengineering, Environmental Biotechnology and Renewable Energies R and D Group, Centro de Investigación y de Estudios Avanzados del I.P.N., México
| | | | | | | | | | | | | | | | | | | |
Collapse
|
16
|
Rittmann S, Seifert A, Herwig C. Essential prerequisites for successful bioprocess development of biological CH4production from CO2and H2. Crit Rev Biotechnol 2013; 35:141-51. [DOI: 10.3109/07388551.2013.820685] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
17
|
Parmar A, Singh NK, Pandey A, Gnansounou E, Madamwar D. Cyanobacteria and microalgae: a positive prospect for biofuels. BIORESOURCE TECHNOLOGY 2011; 102:10163-72. [PMID: 21924898 DOI: 10.1016/j.biortech.2011.08.030] [Citation(s) in RCA: 235] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2011] [Revised: 08/05/2011] [Accepted: 08/05/2011] [Indexed: 05/09/2023]
Abstract
Biofuel-bioenergy production has generated intensive interest due to increased concern regarding limited petroleum-based fuel supplies and their contribution to atmospheric CO2 levels. Biofuel research is not just a matter of finding the right type of biomass and converting it to fuel, but it must also be economically sustainable on large-scale. Several aspects of cyanobacteria and microalgae such as oxygenic photosynthesis, high per-acre productivity, non-food based feedstock, growth on non-productive and non-arable land, utilization of wide variety of water sources (fresh, brackish, seawater and wastewater) and production of valuable co-products along with biofuels have combined to capture the interest of researchers and entrepreneurs. Currently, worldwide biofuels mainly in focus include biohydrogen, bioethanol, biodiesel and biogas. This review focuses on cultivation and harvesting of cyanobacteria and microalgae, possible biofuels and co-products, challenges for cyanobacterial and microalgal biofuels and the approaches of genetic engineering and modifications to increase biofuel production.
Collapse
Affiliation(s)
- Asha Parmar
- BRD School of Biosciences, Sardar Patel Maidan, Vadtal Road, Satellite Campus, Post Box No. 39, Sardar Patel University, Vallabh Vidyanagar 388120, Gujarat, India.
| | | | | | | | | |
Collapse
|
18
|
Guo CL, Zhu X, Liao Q, Wang YZ, Chen R, Lee DJ. Enhancement of photo-hydrogen production in a biofilm photobioreactor using optical fiber with additional rough surface. BIORESOURCE TECHNOLOGY 2011; 102:8507-8513. [PMID: 21596561 DOI: 10.1016/j.biortech.2011.04.075] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2010] [Revised: 04/21/2011] [Accepted: 04/22/2011] [Indexed: 05/30/2023]
Abstract
In this study, a biofilm photobioreactor with optical fibers that have additional rough surface (OFBP-R) was developed and it was shown that additional rough surface greatly enhanced the biofilm formation and thus increased the cell concentration, leading to an improvement in the hydrogen production performance. The effects of operational conditions, including the influent substrate concentration, flow rate, temperature and influent medium pH, on the performance of OFBP-R were also investigated. The experimental results showed that the optimum operational conditions for hydrogen production were: the influent substrate concentration 60 mM, flow rate 30 mL/h, temperature 30 °C and influent medium pH 7. Under the optimal operation conditions discovered in this work, the OFBP-R yielded fairly good and stable long-term performance with hydrogen production rate of 1.75 mmol/L/h, light conversion efficiency of 9.3% and substrate degradation efficiency of 75%.
Collapse
Affiliation(s)
- Cheng-Long Guo
- Institute of Engineering Thermophysics, Chongqing University, Chongqing 400030, China
| | | | | | | | | | | |
Collapse
|
19
|
Fang HHP, Li RY, Zhang T. Effects of Mo(VI) on phototrophic hydrogen production by Rhodobacter sphaeroides. ENVIRONMENTAL TECHNOLOGY 2011; 32:1279-1285. [PMID: 21970170 DOI: 10.1080/09593330.2010.535176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Effects of Mo(6+) concentration on phototrophic hydrogen production of Rhodobacter sphaeroides were investigated using lactate as the sole carbon source. Results showed that an increase of Mo(6+) from nil to 1000 microg l(-1) led to increases in hydrogen yield, maximum production rate, conversion efficiency, biomass yield and lactate removal. At 100 microg-Mo l(-1), the maximum rate was 12.0 ml h(-1) with a conversion efficiency of 36.1%, the cell yields were 1.11 g-cell g(-1) -lactate and 2.4 g-cell g(-1)-TOC removed. Further increase of Mo(6+) improved hydrogen production only marginally. Degradation of lactate by R. sphaeroides produced not just hydrogen but also acetate, butyrate, i-valerate, i-caproate, hexanoate and some unidentified organic intermediates, but did not produce propionate and alcohols. Nitrogenase activity, as measured by the acetylene reduction method, had no clear correlation with either Mo(6+) concentration or hydrogen yield.
Collapse
Affiliation(s)
- Herbert H P Fang
- Centre for Environmental Engineering Research, Department of Civil Engineering, University of Hong Kong, Hong Kong, China.
| | | | | |
Collapse
|
20
|
Li X, Wang Y, Zhang S, Chu J, Zhang M, Huang M, Zhuang Y. Effects of light/dark cycle, mixing pattern and partial pressure of H2 on biohydrogen production by Rhodobacter sphaeroides ZX-5. BIORESOURCE TECHNOLOGY 2011; 102:1142-1148. [PMID: 20884205 DOI: 10.1016/j.biortech.2010.09.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2010] [Revised: 09/04/2010] [Accepted: 09/06/2010] [Indexed: 05/29/2023]
Abstract
The effects of light/dark cycle, mixing pattern and partial pressure of H2 on the growth and hydrogen production of Rhodobacter sphaeroides ZX-5 were investigated. The results from light/dark cycle culture showed that little or no hydrogen production was observed during the dark periods, and the hydrogen production immediately recovered once illumination was resumed. Also, it was found that the optimum condition of shaking velocity was 120 rpm for hydrogen photo-fermentation. Meanwhile, shaking during H2 production phase (i.e., cell growth stationary phase) of photo-fermentation played a crucial role on effectively enhancing the phototrophic hydrogen production, rather than that during cell exponential growth phase. The other factor evaluated was hydrogen partial pressure in the culture system. The substrate conversion efficiency increased from 86.07% to 95.56% along with the decrease of the total pressure in the photobioreactor from 1.082×10(5) to 0.944×10(5) Pa, which indicated that reduction of H2 partial pressure by lowering the operating pressure substantially improved H2 production in an anaerobic, photo-fermentation process.
Collapse
Affiliation(s)
- Xu Li
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, PR China
| | | | | | | | | | | | | |
Collapse
|
21
|
Mudhoo A, Forster-Carneiro T, Sánchez A. Biohydrogen production and bioprocess enhancement: A review. Crit Rev Biotechnol 2010; 31:250-63. [DOI: 10.3109/07388551.2010.525497] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
22
|
Requirements for construction of a functional hybrid complex of photosystem I and [NiFe]-hydrogenase. Appl Environ Microbiol 2010; 76:2641-51. [PMID: 20154103 DOI: 10.1128/aem.02700-09] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The development of cellular systems in which the enzyme hydrogenase is efficiently coupled to the oxygenic photosynthesis apparatus represents an attractive avenue to produce H(2) sustainably from light and water. Here we describe the molecular design of the individual components required for the direct coupling of the O(2)-tolerant membrane-bound hydrogenase (MBH) from Ralstonia eutropha H16 to the acceptor site of photosystem I (PS I) from Synechocystis sp. PCC 6803. By genetic engineering, the peripheral subunit PsaE of PS I was fused to the MBH, and the resulting hybrid protein was purified from R. eutropha to apparent homogeneity via two independent affinity chromatographical steps. The catalytically active MBH-PsaE (MBH(PsaE)) hybrid protein could be isolated only from the cytoplasmic fraction. This was surprising, since the MBH is a substrate of the twin-arginine translocation system and was expected to reside in the periplasm. We conclude that the attachment of the additional PsaE domain to the small, electron-transferring subunit of the MBH completely abolished the export competence of the protein. Activity measurements revealed that the H(2) production capacity of the purified MBH(PsaE) fusion protein was very similar to that of wild-type MBH. In order to analyze the specific interaction of MBH(PsaE) with PS I, His-tagged PS I lacking the PsaE subunit was purified via Ni-nitrilotriacetic acid affinity and subsequent hydrophobic interaction chromatography. Formation of PS I-hydrogenase supercomplexes was demonstrated by blue native gel electrophoresis. The results indicate a vital prerequisite for the quantitative analysis of the MBH(PsaE)-PS I complex formation and its light-driven H(2) production capacity by means of spectroelectrochemistry.
Collapse
|
23
|
Ohashi M, Aoki M, Yamanaka KI, Nakajima K, Ohsuna T, Tani T, Inagaki S. A Periodic Mesoporous Organosilica-Based DonorâAcceptor System for Photocatalytic Hydrogen Evolution. Chemistry 2009; 15:13041-6. [DOI: 10.1002/chem.200901721] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
24
|
Lee DY, Li YY, Noike T. Continuous H2 production by anaerobic mixed microflora in membrane bioreactor. BIORESOURCE TECHNOLOGY 2009; 100:690-695. [PMID: 18693010 DOI: 10.1016/j.biortech.2008.06.056] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2008] [Revised: 06/25/2008] [Accepted: 06/26/2008] [Indexed: 05/26/2023]
Abstract
The characteristics of H(2) production by anaerobic mixed microflora in a submerged membrane bioreactor (MBR) were investigated. For comparative purposes, a continuous stirred tank reactor (CSTR) was operated in parallel under the same conditions. The experimental results showed that 35-day stable and continuous H(2) fermentation was successfully achieved, the MBR revealing an H(2) content of 51% and the CSTR, 58%. No methane gas was detected during the experiments for the long solids retention time (SRT) of 90 days. The MBR's H(2) production rate was 2.43-2.56 l H(2) l(-1)d(-1), which was about 2.6 times higher than that (0.95-0.97 l H(2) l(-1)d(-1)) of the CSTR, reflecting the MBR's higher H(2) productivity.
Collapse
Affiliation(s)
- Dong-Yeol Lee
- National Institute for Environmental Studies, Research Center for Material Cycles and Waste Management, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan
| | | | | |
Collapse
|
25
|
Fouchard S, Pruvost J, Degrenne B, Titica M, Legrand J. Kinetic modeling of light limitation and sulfur deprivation effects in the induction of hydrogen production withChlamydomonas reinhardtii: Part I. Model development and parameter identification. Biotechnol Bioeng 2009; 102:232-45. [DOI: 10.1002/bit.22034] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
26
|
Antonopoulou G, Stamatelatou K, Venetsaneas N, Kornaros M, Lyberatos G. Biohydrogen and Methane Production from Cheese Whey in a Two-Stage Anaerobic Process. Ind Eng Chem Res 2008. [DOI: 10.1021/ie071622x] [Citation(s) in RCA: 135] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Georgia Antonopoulou
- Department of Chemical Engineering, University of Patras, Karatheodori 1 st., 26500 Patras, Greece, and Institute of Chemical Engineering and High Temperature Chemical Processes, 26504 Patras, Greece
| | - Katerina Stamatelatou
- Department of Chemical Engineering, University of Patras, Karatheodori 1 st., 26500 Patras, Greece, and Institute of Chemical Engineering and High Temperature Chemical Processes, 26504 Patras, Greece
| | - Nikolaos Venetsaneas
- Department of Chemical Engineering, University of Patras, Karatheodori 1 st., 26500 Patras, Greece, and Institute of Chemical Engineering and High Temperature Chemical Processes, 26504 Patras, Greece
| | - Michael Kornaros
- Department of Chemical Engineering, University of Patras, Karatheodori 1 st., 26500 Patras, Greece, and Institute of Chemical Engineering and High Temperature Chemical Processes, 26504 Patras, Greece
| | - Gerasimos Lyberatos
- Department of Chemical Engineering, University of Patras, Karatheodori 1 st., 26500 Patras, Greece, and Institute of Chemical Engineering and High Temperature Chemical Processes, 26504 Patras, Greece
| |
Collapse
|
27
|
Najafpour G, Younesi H, Ismail K, Mohamed A, Kamaruddin A. Photobiological Hydrogen Production from Synthesis Gas: Carbon Sources, KL a and Kinetics Evaluation. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/apj.5500130505] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
28
|
|
29
|
Antonopoulou G, Gavala HN, Skiadas IV, Angelopoulos K, Lyberatos G. Biofuels generation from sweet sorghum: fermentative hydrogen production and anaerobic digestion of the remaining biomass. BIORESOURCE TECHNOLOGY 2008; 99:110-9. [PMID: 17257834 DOI: 10.1016/j.biortech.2006.11.048] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2006] [Revised: 11/26/2006] [Accepted: 11/27/2006] [Indexed: 05/13/2023]
Abstract
The present study focuses on the exploitation of sweet sorghum biomass as a source for hydrogen and methane. Fermentative hydrogen production from the sugars of sweet sorghum extract was investigated at different hydraulic retention times (HRT). The subsequent methane production from the effluent of the hydrogenogenic process and the methane potential of the remaining solids after the extraction process were assessed as well. The highest hydrogen production rate (2550 ml H(2)/d) was obtained at the HRT of 6h while the highest yield of hydrogen produced per kg of sorghum biomass was achieved at the HRT of 12h (10.4l H(2)/kg sweet sorghum). It has been proved that the effluent from the hydrogenogenic reactor is an ideal substrate for methane production with approximately 29l CH(4)/kg of sweet sorghum. Anaerobic digestion of the solid residues after the extraction process yielded 78l CH(4)/kg of sweet sorghum. This work demonstrated that biohydrogen production can be very efficiently coupled with a subsequent step of methane production and that sweet sorghum could be an ideal substrate for a combined gaseous biofuels production.
Collapse
Affiliation(s)
- Georgia Antonopoulou
- Department of Chemical Engineering, University of Patras, Karatheodori 1 st., Patras, Greece
| | | | | | | | | |
Collapse
|
30
|
Ihara M, Nakamoto H, Kamachi T, Okura I, Maeda M. Photoinduced hydrogen production by direct electron transfer from photosystem I cross-linked with cytochrome c3 to [NiFe]-hydrogenase. Photochem Photobiol 2007; 82:1677-85. [PMID: 16836469 DOI: 10.1562/2006-05-07-ra-893] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The photosynthetic reaction center is an efficient molecular device for the conversion of light energy to chemical energy. In a previous study, we synthesized the hydrogenase/photosystem I (PSI) complex, in which Ralstonia hydrogenase was linked to the cytoplasmic side of Synechocystis PSI, to modify PSI so that it photoproduced molecular hydrogen (H2). In that study, hydrogenase was fused with a PSI subunit, PsaE, and the resulting hydrogenase-PsaE fusion protein was self-assembled with PsaE-free PSI to give the hydrogenase/PSI complex. Although the hydrogenase/PSI complex served as a direct light-to-H2 conversion system in vitro, the activity was totally suppressed by adding physiological PSI partners, ferredoxin (Fd) and ferredoxin-NADP+-reductase (FNR). In the present study, to establish an H2 photoproduction system in which the activity is not interrupted by Fd and FNR, position 40 of PsaE from Synechocystis sp. PCC6803, corresponding to the Fd-binding site on PSI, was selected and targeted for the cross-linking with cytochrome c3 (cytc3) from Desulfovibrio vulgaris. The covalent adduct of cytc3 and PsaE was stoichiometrically assembled with PsaE-free PSI to form the cytc3/PSI complex. The NADPH production by the cytc3/PSI complex coupled with Fd and FNR decreased to approximately 20% of the original activity, whereas the H2 production by the cytc3/PSI complex coupled with hydrogenase from Desulfovibrio vulgaris was enhanced 7-fold. Consequently, in the simultaneous presence of hydrogenase, Fd, and FNR, the light-driven H2 production by the hydrogenase/cytc3/PSI complex was observed (0.30 pmol Hz/mg chlorophyll/h). These results suggest that the cytc3/PSI complex may produce H2 in vivo.
Collapse
Affiliation(s)
- Masaki Ihara
- Bioengineering, RIKEN, 2-1 Hirosawa, Wako 351-0198, Japan.
| | | | | | | | | |
Collapse
|
31
|
Ihara M, Nakamoto H, Kamachi T, Okura I, Maeda M. Photoinduced Hydrogen Production by Direct Electron Transfer from Photosystem I Cross-Linked with Cytochrome c3to [NiFe]-Hydrogenase. Photochem Photobiol 2006. [DOI: 10.1111/j.1751-1097.2006.tb09830.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
32
|
Wu SY, Hung CH, Lin CN, Chen HW, Lee AS, Chang JS. Fermentative hydrogen production and bacterial community structure in high-rate anaerobic bioreactors containing silicone-immobilized and self-flocculated sludge. Biotechnol Bioeng 2006; 93:934-46. [PMID: 16329152 DOI: 10.1002/bit.20800] [Citation(s) in RCA: 180] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A novel continuously stirred anaerobic bioreactor (CSABR) seeded with silicone-immobilized sludge was developed for high-rate fermentative H2 production using sucrose as the limiting substrate. The CSABR system was operated at a hydraulic retention time (HRT) of 0.5-6 h and an influent sucrose concentration of 10-40 g COD/L. With a high feeding sucrose concentration (i.e., 30-40 g COD/L) and a short HRT (0.5 h), the CSABR reactor produced H2 more efficiently with the highest volumetric rate (VH2) of 15 L/h/L (i.e., 14.7 mol/d/L) and an optimal yield of ca. 3.5 mol H2/mol sucrose. The maximum VH2 value obtained from this work is much higher than any other VH2 values ever documented. Formation of self-flocculated granular sludge occurred during operation at a short HRT. The granule formation is thought to play a pivotal role in the dramatic enhancement of H2 production rate, because it led to more efficient biomass retention. A high biomass concentration of up to 35.4 g VSS/L was achieved even though the reactor was operated at an extremely low HRT (i.e., 0.5 h). In addition to gaining high biomass concentrations, formation of granular sludge also triggered a transition in bacterial community structure, resulting in a nearly twofold increase in the specific H2 production rate. According to denatured-gradient-gel-electrophoresis analysis, operations at a progressively decreasing HRT resulted in a decrease in bacterial population diversity. The culture with the best H2 production performance (at HRT = 0.5 h and sucrose concentration = 30 g COD/L) was eventually dominated by a presumably excellent H2-producing bacterial species identified as Clostridium pasteurianum.
Collapse
MESH Headings
- Acetic Acid/metabolism
- Bacteria, Anaerobic/cytology
- Bacteria, Anaerobic/genetics
- Bacteria, Anaerobic/metabolism
- Biomass
- Bioreactors/microbiology
- Butyric Acid/metabolism
- Cells, Immobilized/metabolism
- Cells, Immobilized/ultrastructure
- DNA, Bacterial/analysis
- DNA, Bacterial/genetics
- DNA, Ribosomal/analysis
- DNA, Ribosomal/genetics
- Fermentation
- Hydrogen/metabolism
- Microscopy, Electron, Scanning
- RNA, Ribosomal, 16S/genetics
- Sewage/chemistry
- Sewage/microbiology
- Silicone Gels/chemistry
- Species Specificity
- Sucrose/metabolism
Collapse
Affiliation(s)
- Shu-Yii Wu
- Department of Chemical Engineering, Feng Chia University, Taichung, Taiwan
| | | | | | | | | | | |
Collapse
|
33
|
Ethanol and acetate synthesis from waste gas using batch culture of Clostridium ljungdahlii. Enzyme Microb Technol 2006. [DOI: 10.1016/j.enzmictec.2005.06.008] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
34
|
Dutta D, De D, Chaudhuri S, Bhattacharya SK. Hydrogen production by Cyanobacteria. Microb Cell Fact 2005; 4:36. [PMID: 16371161 PMCID: PMC1343573 DOI: 10.1186/1475-2859-4-36] [Citation(s) in RCA: 207] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2005] [Accepted: 12/21/2005] [Indexed: 11/10/2022] Open
Abstract
The limited fossil fuel prompts the prospecting of various unconventional energy sources to take over the traditional fossil fuel energy source. In this respect the use of hydrogen gas is an attractive alternate source. Attributed by its numerous advantages including those of environmentally clean, efficiency and renew ability, hydrogen gas is considered to be one of the most desired alternate. Cyanobacteria are highly promising microorganism for hydrogen production. In comparison to the traditional ways of hydrogen production (chemical, photoelectrical), Cyanobacterial hydrogen production is commercially viable. This review highlights the basic biology of cynobacterial hydrogen production, strains involved, large-scale hydrogen production and its future prospects. While integrating the existing knowledge and technology, much future improvement and progress is to be done before hydrogen is accepted as a commercial primary energy source.
Collapse
Affiliation(s)
- Debajyoti Dutta
- Department of Biotechnology, Haldia Institute of Technology, Haldia, West Bengal, India
| | - Debojyoti De
- Department of Biotechnology, Haldia Institute of Technology, Haldia, West Bengal, India
| | - Surabhi Chaudhuri
- Department of Biotechnology, Haldia Institute of Technology, Haldia, West Bengal, India
| | - Sanjoy K Bhattacharya
- Department of Ophthalmic Research, Cleveland Clinic Foundation, Area I31, 9500 Euclid Avenue, Cleveland, Ohio, 44195, USA
| |
Collapse
|
35
|
Lee KS, Wu JF, Lo YS, Lo YC, Lin PJ, Chang JS. Anaerobic hydrogen production with an efficient carrier-induced granular sludge bed bioreactor. Biotechnol Bioeng 2005; 87:648-57. [PMID: 15352063 DOI: 10.1002/bit.20174] [Citation(s) in RCA: 121] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
A novel bioreactor containing self-flocculated anaerobic granular sludge was developed for high-performance hydrogen production from sucrose-based synthetic wastewater. The reactor achieved an optimal volumetric hydrogen production rate of approximately 7.3 L/h/L (7,150 mmol/d/L) and a maximal hydrogen yield of 3.03 mol H2/mol sucrose when it was operated at a hydraulic retention time (HRT) of 0.5 h with an influent sucrose concentration of 20 g COD/L. The gas-phase hydrogen content and substrate conversion also exceeded 40 and 90%, respectively, under optimal conditions. Packing of a small quantity of carrier matrices on the bottom of the upflow reactor significantly stimulated sludge granulation that can be accomplished within 100 h. Among the four carriers examined, spherical activated carbon was the most effective inducer for granular sludge formation. The carrier-induced granular sludge bed (CIGSB) bioreactor was started up with a low HRT of 4-8 h (corresponding to an organic loading rate of 2.5-5 g COD/h/L) and enabled stable operations at an extremely low HRT (up to 0.5 h) without washout of biomass. The granular sludge was rapidly formed in CIGSB supported with activated carbon and reached a maximal concentration of 26 g/L at HRT = 0.5 h. The ability to maintain high biomass concentration at low HRT (i.e., high organic loading rate) highlights the key factor for the remarkable hydrogen production efficiency of the CIGSB processes.
Collapse
Affiliation(s)
- Kuo-Shing Lee
- Department of Chemical Engineering, Feng Chia University, Taichung 407, Taiwan
| | | | | | | | | | | |
Collapse
|
36
|
Lee KS, Lo YS, Lo YC, Lin PJ, Chang JS. Operation strategies for biohydrogen production with a high-rate anaerobic granular sludge bed bioreactor. Enzyme Microb Technol 2004. [DOI: 10.1016/j.enzmictec.2004.08.013] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
37
|
Najafpour G, Younesi H, Mohamed AR. Effect of organic substrate on hydrogen production from synthesis gas using Rhodospirillum rubrum, in batch culture. Biochem Eng J 2004. [DOI: 10.1016/j.bej.2004.06.001] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
38
|
Kosourov S, Tsygankov A, Seibert M, Ghirardi ML. Sustained hydrogen photoproduction by Chlamydomonas reinhardtii: Effects of culture parameters. Biotechnol Bioeng 2002; 78:731-40. [PMID: 12001165 DOI: 10.1002/bit.10254] [Citation(s) in RCA: 212] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The green alga, Chlamydomonas reinhardtii, is capable of sustained H(2) photoproduction when grown under sulfur-deprived conditions. This phenomenon is a result of the partial deactivation of photosynthetic O(2)-evolution activity in response to sulfur deprivation. At these reduced rates of water-oxidation, oxidative respiration under continuous illumination can establish an anaerobic environment in the culture. After 10-15 hours of anaerobiosis, sulfur-deprived algal cells induce a reversible hydrogenase and start to evolve H(2) gas in the light. Using a computer-monitored photobioreactor system, we investigated the behavior of sulfur-deprived algae and found that: (1) the cultures transition through five consecutive phases: an aerobic phase, an O(2)-consumption phase, an anaerobic phase, a H(2)-production phase and a termination phase; (2) synchronization of cell division during pre-growth with 14:10 h light:dark cycles leads to earlier establishment of anaerobiosis in the cultures and to earlier onset of the H(2)-production phase; (3) re-addition of small quantities of sulfate (12.5-50 microM MgSO(4), final concentration) to either synchronized or unsynchronized cell suspensions results in an initial increase in culture density, a higher initial specific rate of H(2) production, an increase in the length of the H(2)-production phase, and an increase in the total amount of H(2) produced; and (4) increases in the culture optical density in the presence of 50 microM sulfate result in a decrease in the initial specific rates of H(2) production and in an earlier start of the H(2)-production phase with unsynchronized cells. We suggest that the effects of sulfur re-addition on H(2) production, up to an optimal concentration, are due to an increase in the residual water-oxidation activity of the algal cells. We also demonstrate that, in principle, cells synchronized by growth under light:dark cycles can be used in an outdoor H(2)-production system without loss of efficiency compared to cultures that up until now have been pre-grown under continuous light conditions.
Collapse
Affiliation(s)
- Sergey Kosourov
- Basic Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, USA
| | | | | | | |
Collapse
|
39
|
Yokoi H, Saitsu A, Uchida H, Hirose J, Hayashi S, Takasaki Y. Microbial hydrogen production from sweet potato starch residue. J Biosci Bioeng 2001. [DOI: 10.1016/s1389-1723(01)80112-2] [Citation(s) in RCA: 175] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
40
|
Katsuda T, Arimoto T, Igarashi K, Azuma M, Kato J, Takakuwa S, Ooshima H. Light intensity distribution in the externally illuminated cylindrical photo-bioreactor and its application to hydrogen production by Rhodobacter capsulatus. Biochem Eng J 2000; 5:157-164. [PMID: 10817822 DOI: 10.1016/s1369-703x(00)00054-1] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The light distribution in the externally illuminated cylindrical photo-bioreactor for production of hydrogen by a photosynthetic bacterium Rhodobacter capsulatus ST-410 was estimated. The estimation was performed on the basis of the Matsuura and Smith's diffuse model [1]. In the diffuse model, the incident light rays are assumed to proceed in every direction and the local intensity is calculated as the sum of the intensities of light. Since Lambert-Beer's law, extensively used in photometry, was not useful for explaining the decrease in the intensity of light by the biomass, an empirical expression was used. The measurement of the intensities from every direction was conducted in an externally illuminated cylindrical photo-bioreactor having an inner diameter of 60mm and a working volume of 550ml. The obtained results confirmed our estimation. The light distribution was applied to estimate the hydrogen production by R. capsulatus ST-410 using the same photo-bioreactor. The overall hydrogen-production rate was successfully estimated.
Collapse
Affiliation(s)
- T Katsuda
- Department of Bioapplied Chemistry, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka, Japan
| | | | | | | | | | | | | |
Collapse
|