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Mixed culture biotechnology for bioenergy production
Abstract
Mixed culture biotechnology (MCB) could become an attractive addition or alternative to traditional pure culture based biotechnology for the production of chemicals and/or bioenergy. On the basis of ecological selection principles, MCB-based processes can be established that generate a narrow product spectrum from a mixed substrate. Three example processes are briefly discussed in this paper: anaerobic digestion aimed at the production of methane-containing biogas, mixed culture fermentation for the production of solvents or biohydrogen, and a two-step process for the production of polyhydroxyalkanoates. These examples give an idea of the potential contribution of mixed culture biotechnology to sustainable production of bioenergy from waste.
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“Mixed cultures leverage species diversity [127], enabling adaptation to varying light, temperature, and pH conditions [128].”
From A Review of Algae-Based Carbon Capture, Utilization, and Storage (Algae-Based CCUS) (2024) · cites this paper as [127]
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Cites
Microbial Fuel Cells: Methodology and Technology
Logan, B. E., Hamelers, H. V. M., Rozendal, R. A., Schröder, U., Keller, J., Freguia, S., Aelterman, P., Verstraete, W., & Rabaey, K. (2006) · Environmental Science & Technology · doi:10.1021/es0605016 · Cited by 6,095
Fermentative Hydrogen Production From Wastewater and Solid Wastes by Mixed Cultures
Li, C., & Fang, H. H. P. (2006) · Critical Reviews in Environmental Science and Technology · doi:10.1080/10643380600729071 · Cited by 822
Bacteria engineered for fuel ethanol production: current status
Dien, B. S., Cotta, M. A., & Jeffries, T. W. (2003) · Applied Microbiology and Biotechnology · doi:10.1007/s00253-003-1444-y · Cited by 796
Principle and perspectives of hydrogen production through biocatalyzed electrolysis
Rozendal, R. A., Hamelers, H. V. M., Euverink, G. J. W., Metz, S. J., & Buisman, C. J. N. (2006) · International Journal of Hydrogen Energy · doi:10.1016/j.ijhydene.2005.12.006 · Cited by 734
van Maris, A. J. A., Abbott, D. A., Bellissimi, E., van den Brink, J., Kuyper, M., Luttik, M. A. H., Wisselink, H. W., Scheffers, W. A., van Dijken, J. P., & Pronk, J. T. (2006) · Antonie van Leeuwenhoek · doi:10.1007/s10482-006-9085-7 · Cited by 546
Photobiological hydrogen production: photochemical efficiency and bioreactor design
Akkerman, I. (2002) · International Journal of Hydrogen Energy · doi:10.1016/s0360-3199(02)00071-x · Cited by 542
Hydrogen and methane production from household solid waste in the two-stage fermentation process
Liu, D., Liu, D., Zeng, R. J., & Angelidaki, İ. (2006) · Water Research · doi:10.1016/j.watres.2006.03.029 · Cited by 444
Acetate as a carbon source for hydrogen production by photosynthetic bacteria
Barbosa, M. J., Rocha, J. M. S., TRAMPER, J., & Wijffels, R. H. (2001) · Journal of Biotechnology · doi:10.1016/s0168-1656(00)00368-0 · Cited by 339
Production of Polyhydroxyalkanoates by Mixed Microbial Cultures
Reis, M. A. M., Serafim, L. S., Lemos, P. C., Ramos, A. M., Aguiar, F. R., & Van Loosdrecht, M. C. M. (2003) · Bioprocess and Biosystems Engineering · doi:10.1007/s00449-003-0322-4 · Cited by 301
pH influence on acidogenic dissimilation of glucose in an anaerobic digestor
Zoetemeyer, R. J., van den Heuvel, J. C., & Cohen, A. (1982) · Water Research · doi:10.1016/0043-1354(82)90190-7 · Cited by 287
Research works printed but not linked: 1
- Kleerebezem, 2003, Treating industrial wastewater: Anaerobic digestion comes of age, Chem Eng, 110, 56
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Compatible Technologies to Anaerobic Digestion for the Integral Valorization of Organic Waste
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Microbial and technological advancements in biogas production
Ali, S. N., Anwar, M. N., Nizami, A., & Baqar, M. (2020) · Elsevier eBooks · doi:10.1016/b978-0-444-64309-4.00006-4 · Cited by 3
Bioethanol Production from Paddy Straw Lignocellulosic Waste
Iqbal, B., Ghazanfar, M., Shakir, H. A., Ali, S., Khan, M. N., Gul, A., Franco, M., & Irfan, M. I. (2024) · Clean Energy Production Technologies · doi:10.1007/978-981-99-8224-0_8 · Cited by 3
Global Trends & Challenges in Water Science, Research and Management
Li, H. (2018) · Water Intelligence Online · doi:10.2166/9781780408378 · Cited by 3
Stouten, G. R., Hamers, K., van Tatenhove‐Pel, R. J., van der Knaap, E., & Kleerebezem, R. (2021) · FEMS Microbiology Ecology · doi:10.1093/femsec/fiab002 · Cited by 3
Self-citationMockaitis, G., Bruant, G., Foresti, E., Zaiat, M., & Guiot, S. R. (2022) · Biomass Conversion and Biorefinery · doi:10.1007/s13399-022-02383-7 · Cited by 3
Modeling polyhydroxyalkanoates production from sugarcane vinasse by mixed microbial cultures
de Rezende, E. G. F., de Oliveira, G. H. D., Couto, P. T., Zaiat, M., & Ribeiro, R. (2023) · Journal of Water Process Engineering · doi:10.1016/j.jwpe.2023.103740 · Cited by 3
Enhancement of Biohydrogen Production from Co-Fermentation of Glucose, Starch, and Cellulose
Gupta, M. (2014) · Scholarship@Western (Western University) · Cited by 3
Zheng, H., Zeng, R. J., O’Sullivan, C. A., & Clarke, W. P. (2016) · Applied Microbiology and Biotechnology · doi:10.1007/s00253-016-7482-z · Cited by 3
Pérez, S., Corti-Monzón, G., Yeannes, M. I., Zaritzky, N., Villegas-Plazas, M., Junca, H., & Murialdo, S. E. (2021) · LWT · doi:10.1016/j.lwt.2021.111010 · Cited by 3
Polyhydroxyalkanoates production by bacterial enrichments
Jiang, Y. (2011) · Research Repository (Delft University of Technology) · Cited by 3
Directing product formation by mixed culture fermentation
Temudo, M. F. (2008) · Data Archiving and Networked Services (DANS) · Cited by 3
Selective short chain carboxylates production by mixed culture fermentation
Arslan, D. (2014) · doi:10.18174/317179 · Cited by 3
Cerruti, M., Crosset-Perrotin, G., Ananth, M., Rombouts, J. L., & Weissbrodt, D. G. (2021) · bioRxiv (Cold Spring Harbor Laboratory) · doi:10.1101/2021.05.13.444055 · Cited by 3
Ferretti, J., Zegers, M. A. J., Zeppilli, M., & Jourdin, L. (2025) · Frontiers in Microbiology · doi:10.3389/fmicb.2025.1655259 · Cited by 2
Removal mechanisms of aqueous Cr(VI) by anaerobic fermentation sludge
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Koch, J., Scott, E. L., Bitter, J. H., & Tashvigh, A. A. (2022) · Bioresource Technology · doi:10.1016/j.biortech.2022.127994 · Cited by 2
Liang, G., Fang, Q., Xiao, Y., Xiaomin, G., Zhu, J., & Xiao, Z. (2024) · Waste and Biomass Valorization · doi:10.1007/s12649-024-02536-x · Cited by 2
Residues from the Food Industry: An Under-Exploited Global Source of Biomolecules of Interest
Garcia-Bernet, D., Ferraro, V., & Moscoviz, R. (2024) · Springer eBooks · doi:10.1007/978-3-031-54188-9_7 · Cited by 2
Butyric Acid Fermentation from Rice Straw with Undefined Mixed Culture: Enhancement by pH Control
Ai, B. L., Li, J. Z., Chi, X., & Meng, J. (2013) · Advanced materials research · doi:10.4028/www.scientific.net/amr.807-809.1198 · Cited by 2
Municipal Wastewater as Potential Bio-refinery
Jha, S., & Siddiqui, N. M. (2023) · Springer eBooks · doi:10.1007/978-3-031-20822-5_5 · Cited by 2
Monroy, A. F., Z, J. J. M., & Pineda, G. A. C. (2022) · CIENCIA EN DESARROLLO · doi:10.19053/01217488.v13.n2.2022.14088 · Cited by 2
Liu, Y., He, J., Zhao, J. H., Wei, M. B., Yang, X. P., & Zheng, S. J. (2012) · Advanced materials research · doi:10.4028/www.scientific.net/amr.550-553.1424 · Cited by 2
Madelaine Quiroz, E. (2014) · Water Air & Soil Pollution · doi:10.1007/s11270-014-1934-9 · Cited by 2
Biohydrogen production from sugar rich substrates using the dark fermentation process
Kongjan, P. (2010) · Cited by 2
Kim, J., & Zhang, Y. ‐. P. (2015) · Biofuels and biorefineries · doi:10.1007/978-94-017-7330-0_3 · Cited by 2
Synthetic microbiome: When “synthetic biology” meets “microbiomics”
Zhu, T., & Wu, B. (2019) · Chinese Science Bulletin (Chinese Version) · doi:10.1360/n972018-01194 · Cited by 2
Operating parameters in open culture fermentation of sugars
Chwiałkowska, J., Smaga, Ł., & Oleśkowicz-Popiel, P. (2021) · Biosystems Engineering · doi:10.1016/j.biosystemseng.2021.08.002 · Cited by 2
Transport Biofuels: Their Characteristics, Production and Costs
Reijnders, L., & Huijbregts, M. A. J. (2008) · Green energy and technology · doi:10.1007/978-1-84882-138-5_1 · Cited by 2
Pollution to Product—a Novel Two-Stage Single-Pot Fermentative Production of 1,3-Propanediol
Anand, S., Mukherjee, K., & Padmanabhan, P. (2023) · BioEnergy Research · doi:10.1007/s12155-023-10570-1 · Cited by 2
Ceron‐Chafla, P., Vrieze, J. D., Rabaey, K., van Lier, J. B., & Lindeboom, R. E. F. (2023) · Biotechnology for Biofuels and Bioproducts · doi:10.1186/s13068-023-02262-x · Cited by 2
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Cookey, P. E., & Peter‐Cookey, M. A. (2021) · Wiley eBooks · doi:10.1002/9781119564522.ch4 · Cited by 2
Liu, B., Sträuber, H., Saraiva, J., Harms, H., Silva, S. G., Kasmanas, J. C., Kleinsteuber, S., & da Rocha, U. N. (2021) · Research Square · doi:10.21203/rs.3.rs-78714/v2 · Cited by 2
Guimarães, L. B., Gubser, N. R., Lin, Y., Zlopaša, J., Felz, S., Tomás-Martínez, S., Pronk, M., Neu, T. R., Dueholm, M. S., Albertsen, M., et al. (2023) · bioRxiv (Cold Spring Harbor Laboratory) · doi:10.1101/2023.03.24.534144 · Cited by 2
Nanobiotechnology in Wastewater Treatment and Circular Economy: Frontiers in Wastewater Management
Paul, S., Saha, S. K., Rakshit, S., Prasad, K., Dasgupta, D., & Sengupta, T. K. (2024) · Clean Energy Production Technologies · doi:10.1007/978-981-97-3458-0_23 · Cited by 1
Cruz, R. A. P., Oehmen, A., & Reis, M. A. M. (2025) · Journal of Industrial and Engineering Chemistry · doi:10.1016/j.jiec.2025.08.030 · Cited by 1
Dev, C., Bhattarai, M., Tang, Y., & Chen, S. (2026) · World Journal of Microbiology and Biotechnology · doi:10.1007/s11274-026-04812-5 · Cited by 1
Mariën, Q., Sabbe, K., Aslam, U., Gabrič, M., Regueira, A., & Ganigué, R. (2026) · ACS Sustainable Chemistry & Engineering · doi:10.1021/acssuschemeng.6c02708 · Cited by 1
Narmanova, R., Delegan, Y. A., Mironova, O., Bogun, A. G., Baraboshkina, A., Ахметов, Л. И., Захарченко, Н. С., Alimkhan, B., Борисовна, Р. Е., Канжар, С. А., et al. (2026) · Environments · doi:10.3390/environments13070410 · Cited by 1
Sun, T., Yuan, Q., Xiao, M., Zhang, X., Sun, Y., Huang, M., Wu, J., Li, X., & Qian, L. (2026) · Bioprocess and Biosystems Engineering · doi:10.1007/s00449-026-03295-w · Cited by 1
Altamira, L. M. (2008) · Cited by 1
Hernández-Guisao, R. E., Aranda, J., Badillo-Corona, A., Garcia-Peña, E. I., & Salgado, E. (2022) · Biotechnology and Bioprocess Engineering · doi:10.1007/s12257-022-0061-5 · Cited by 1
Shukla, P., Srivastava, P., & Mishra, A. (2023) · Springer eBooks · doi:10.1007/978-981-99-2816-3_7 · Cited by 1
Giménez, J. B., Marti, N., Bouzas, A., Ferrer, J., & Seco, A. (2020) · Journal of Environmental Management · doi:10.1016/j.jenvman.2020.110983 · Cited by 1
Sangannavar, P. A., Kalita, M., Subrahmanyam, G., Kumar, A., Sathyanarayana, K., & Debnath, R. (2022) · Elsevier eBooks · doi:10.1016/b978-0-323-90590-9.00004-3 · Cited by 1
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Garai, S., Mukherjee, D., Nag, M., Lahiri, D., Ghosh, S., Dey, A., Joshi, S. J., Ray, R. R., Kumar, R., Chauhan, S., et al. (2022) · Clean Energy Production Technologies · doi:10.1007/978-981-16-8094-6_8 · Cited by 1
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Weissbrodt, D. G. (2024) · Springer theses · doi:10.1007/978-3-031-41009-3_2 · Cited by 1
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Tizzone, R. (2011) · University of the Witwatersrand, Johannesburg Institutional Repository on DSpace (University of the Witwatersrand, Johannesburg) · Cited by 1
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Bader, J. (2008) · DepositOnce · doi:10.14279/depositonce-1932 · Cited by 1
Microbial chain elongation based on methanol
Chen, W. (2017) · doi:10.18174/413896 · Cited by 1
Sosa, R., & Roberto, D. (2017) · White Rose eTheses Online (University of Leeds, The University of Sheffield, University of York) · Cited by 1
Jin, Y. (2014) · ERA: Education and Research Archive (University of Alberta) · doi:10.7939/r3xd0r58k · Cited by 1
Gil-Castell, O. (2018) · RiuNet (Universitat Politècnica de València) · doi:10.4995/thesis/10251/107950 · Cited by 1
Ajao, V. (2020) · doi:10.18174/527116 · Cited by 1
Open culture chain elongation for branched carboxylate formation
de Leeuw, K. D. (2020) · doi:10.18174/530424 · Cited by 1
Microbial Communities Performing Hydrogen Solventogenic Metabolism of Volatile Fatty AcidsPreprint
Mockaitis, G., Bruant, G., Foresti, E., Zaiat, M., & Guiot, S. R. (2021) · bioRxiv (Cold Spring Harbor Laboratory) · doi:10.1101/2021.03.23.436570 · Cited by 1
Bioplastic Production from Oil Producing Plants
Phang, L. Y., Mohammadi, M., Jenol, M. A., & Gozan, M. (2022) · Wiley eBooks · doi:10.1002/9783527830756.ch27 · Cited by 1
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Obazu, F. O. (2013) · University of the Witwatersrand, Johannesburg Institutional Repository on DSpace (University of the Witwatersrand, Johannesburg) · Cited by 1
Thermodynamic based modelling of biohydrogen production by anaerobic fermentation
Bastidas‐Oyanedel, J. (2011) · theses.fr (ABES) · doi:10.70675/5d7cc1dfz3018z472eza73bzf7069cd74132 · Cited by 1
Wannagat, M. (2016) · theses.fr (ABES) · doi:10.70675/5e137ab6zc246z47f1z9f16z9df732ad8555 · Cited by 1
Modelling and optimization of microbial production of hydrogen on agro-municipal wastes.
Sekoai, P. T. (2013) · ResearchSpace (University of KwaZulu-Natal)
Pardelha, F. (2013) · Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT)
Enrichment of a PHA producing microbial community in a continuous bioreactor setup
Valente, R. S. C. (2014) · Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT)
Ralo, C. (2013) · Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT)
Bioreactor Systems for Biofuel/Bioelectricity Production
Gadhamshetty, V. R., Nirmalakhandan, N. N., Khanal, S. K., & Johnson, G. R. (2010) · American Society of Civil Engineers eBooks · doi:10.1061/9780784410899.ch13
Regulation of mixed culture fermentation
Mohd-Zaki, Z. (2016) · The University of Queensland · doi:10.14264/uql.2016.967
Noebauer, S., & Schnitzhofer, W. (2011) · Chemical engineering transactions · doi:10.3303/cet1125159
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Stone, K. A., Shah, D., He, Q. P., & Wang, J. (2017) · Proceedings of the ... American Control Conference/Proceedings of the American Control Conference · doi:10.23919/acc.2017.7963012
Ai, B., Chi, X., Meng, J., Sheng, Z., Zheng, L., Zheng, X., & Li, J. (2017) · IOP Conference Series Earth and Environmental Science · doi:10.1088/1755-1315/100/1/012088
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Ambreen, R., Hussain, S., & Sarfraz, S. (2018) · International Journal of Economic and Environmental Geology · doi:10.46660/ijeeg.v9i2.683
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Zhang, F., & Zeng, R. J. (2019) · Springer eBooks · doi:10.1007/978-3-030-10961-5_17
Brain, C. K. (2019) · Open Research Exeter (University of Exeter)
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Maurice, N. G. (2021) · Clean Energy Production Technologies · doi:10.1007/978-981-16-1190-2_1
Pharmacy Practice Experiences: A Student's Handbook.
Vesta, K. S. (2009) · PubMed Central
Conversion of wastewater to bioenergy and biochemicals via anaerobic digestion
Li, Y. (2022) · Elsevier eBooks · doi:10.1016/b978-0-323-90633-3.00006-7
Freguia, S., Virdis, B., & Rabaey, K. (2013) · Springer eBooks · doi:10.1007/978-3-642-31331-8_33
Mesophilic and thermophilic biohydrogen production using cassava starch wastewater in a CSTR
Eniyon, U. K., Anantharaj, C., & Arutchelvan, V. (2022) · Ecology Environment and Conservation · doi:10.53550/eec.2022.v28i01.030
Eniyon, U. K., Anantharaj, C., & ARUTCHELVAN, V. (2022) · Pollution Research · doi:10.53550/pr.2022.v41i01.015
Liu, B., Sträuber, H., SARAIVA, J. P. M., Harms, H., Silva, S. G., Kleinsteuber, S., & da Rocha, U. N. (2020) · Research Square · doi:10.21203/rs.3.rs-78714/v1
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Jha, S., & Siddiqui, N. M. (2023) · Springer eBooks · doi:10.1007/978-3-031-24086-7_7
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Benito-Vaquerizo, S. (2023) · doi:10.18174/630256
Microalgae–methanotroph cocultures for carbon and nutrient recovery from wastewater
Wang, J., & He, Q. P. (2023) · IWA Publishing eBooks · doi:10.2166/9781789063547_0103
Concluding Remarks and Outlook
Weissbrodt, D. G. (2024) · Springer theses · doi:10.1007/978-3-031-41009-3_12
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Weissbrodt, D. G. (2024) · Springer theses · doi:10.1007/978-3-031-41009-3_1
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Tomar, U., & Jain, P. (2024) · Wiley eBooks · doi:10.1002/9781394204502.ch13
Dahunsi, O. S. (2024) · Elsevier eBooks · doi:10.1016/b978-0-443-24129-1.00018-1
Agricultural wastewaters biorefinery
Dahunsi, O. S. (2024) · Elsevier eBooks · doi:10.1016/b978-0-443-24129-1.00017-x
Production of Novel Energy Gases in Bioprocesses Using Undefined Mixed Cultures
Hakalehto, E., & Jääskeläinen, A. (2024) · Advances in biochemical engineering, biotechnology · doi:10.1007/10_2024_267
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Delavar, M. A., & Wang, J. (2025) · Elsevier eBooks · doi:10.1016/b978-0-443-24780-4.00005-8
Metadata
- Authors
- Kleerebezem, R., & van Loosdrecht, M. C.
- Affiliations
- Delft University of Technology (NL)
- Corresponding author
- Kleerebezem, Robbert
- ORCID
- Kleerebezem, Robbert
- Venue
- Current Opinion in Biotechnology
- Publisher
- Elsevier BV
- Published
- 2007-06
- Volume
- 18
- Issue
- 3
- Pages
- 207-212
- ISSN
- 0958-1669 (ISSN-L)
- OpenAlex
- W2031663630
- Cited by
- 624
- References
- 34
- Citations by year
- 2026: 18 · 2025: 15 · 2024: 33 · 2023: 34 · 2022: 39 · 2021: 38 · 2020: 43 · 2019: 49 · 2018: 42 · 2017: 43 · 2016: 48 · 2015: 39 · 2014: 35 · 2013: 30 · 2012: 24
- FWCI
- 5.29
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Current Opinion in Biotechnology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Anaerobic Digestion and Biogas Production
- Physical Sciences › Engineering › Biomedical Engineering › Biofuel production and bioconversion
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial Metabolic Engineering and Bioproduction
- Keywords
- bioenergy production, anaerobic digestion, biogas, methane production, mixed culture fermentation, biohydrogen, solvents, polyhydroxyalkanoates, waste valorization, ecological selection
- MeSH terms
- Anaerobiosis, Biotechnology, Fermentation, Hydrocarbons, Hydrogen, Solvents
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