Article
Multidisciplinary Sciences
Maximilienne Toetie Allaart, Bartholomeus B. Fox, Ingo H. M. S. Nettersheim, Martin Pabst, Diana Z. Sousa, Robbert Kleerebezem
Summary: This study demonstrates the biological feasibility of converting ethanol into hexanoate through chain elongation, bypassing the need for acetate addition and simplifying product separation. The experiments revealed the metabolic behavior of microbial communities and the role of butyrate in stabilizing the conversion process.
SCIENTIFIC REPORTS
(2023)
Article
Food Science & Technology
Adwin Ong, Chi-Lik Ken Lee
Summary: This study investigated the effects of solid-state fermentation using okara and BSG as substrates with pure and mixed cultures of Aspergillus oryzae and Bacillus subtilis. The results showed that a mixed culture fermentation enhanced the nutritional profile of the substrates, particularly in terms of total phenolic content and total dietary fibre. However, challenges remain in accurately determining crude protein content, suggesting the need for more specific methods and sample preparation optimization in future research.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Flavio C. F. Baleeiro, Magda S. Ardila, Sabine Kleinsteuber, Heike Straeuber
Summary: This study found that small air contaminations can affect microbial community dynamics and product formation in anaerobic bioreactors, primarily inhibiting the production of n-caproate and methane with minimal impact on n-butyrate production.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Review
Green & Sustainable Science & Technology
Lan Wu, Wei Wei, Zhijie Chen, Bing-Jie Ni
Summary: This review article provides a systematic introduction to the formation of medium-chain fatty acids (MCFAs) through open-culture fermentation, including metabolic platforms, competitive bio-reactions, operational conditions, challenges, and potential opportunities for improving MCFAs productions biologically.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Biotechnology & Applied Microbiology
David Humbird
Summary: The analysis reveals that due to various limitations in animal cell production, the current costs of mass producing cultured meat products are high, making it difficult to replace conventional meat. Improving metabolic efficiency and developing low-cost plant hydrolysates as media do help address the issue, but there are still challenges ahead.
BIOTECHNOLOGY AND BIOENGINEERING
(2021)
Article
Environmental Sciences
Filip Brodowski, Mateusz Lezyk, Natalia Gutowska, Piotr Oleskowicz-Popiel
Summary: The study demonstrated the positive impact of external acetate on lactate-based chain elongation, leading to stable and efficient caproate production with concurrent hydrogen production. The addition of external acetate also helped maintain stable caproate production and induced previously unobserved hydrogen production even under continuous lactate overloading.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Agricultural Engineering
Florian Gattermayr, Christoph Herwig, Viktoria Leitner
Summary: The variability in substrate in multi-feedstock biorefineries has implications for the stability of downstream bioprocesses, with total acid feed rate and the ratio of butyric acid to acetic acid in the feed found to be significant factors in substrate utilization. To maximize specific butanol production rate, glucose should not be limited and butyric acid should be supplied at a rate of 7.5 mmol L-1 h-1. pH plays a role indirectly in process stability.
BIORESOURCE TECHNOLOGY
(2021)
Article
Chemistry, Physical
Karina J. Salazar-Batres, Ivan Moreno-Andrade
Summary: In recent years, alternative renewable energy generation sources, particularly the dark fermentation process, have been investigated for their potential in obtaining hydrogen-rich gas. Nickel, as a component of the [Ni-Fe] hydrogenase enzyme, plays a crucial role in catalyzing the oxidation of H-2 in bacteria. This study evaluates the effect of nickel on biohydrogen production from organic solid waste (OSW) and highlights its impact on bacterial metabolism and hydrogen production efficiency.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Environmental
Santo Fabio Corsino, Daniele Di Trapani, Nicoletta Torregrossa, Daniela Piazzese
Summary: This study demonstrated the feasibility of producing biopolymers from citrus wastewater using mixed microbial culture in an A/O-MBR, with different conversion rates observed under different conditions. Further optimization of operating conditions is suggested for future studies.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Agricultural Engineering
Qingyan Wang, Hao Fu, Guangming Zhang, Yan Wu, Weifang Ma, Chuan Fu, Yajing Cai, Lihui Zhong, Yiwei Zhao, Xinyi Wang, Panyue Zhang
Summary: Yeast fermentation and hydrolytic acidogenesis were used to produce ethanol and volatile fatty acids for chain elongation from food waste. The ideal ratio of ethanol to VFAs for chain elongation was found to be 2:1, with a highest n-caproate production of 169.76 mg COD/g vS and a food waste utilization rate of 65.43%. Electron transfer and carbon distribution did not fully align with n-caproate production, suggesting the need for timely product extraction. The abundance of Romboutsia and Clostridium_sensu_stricto_12 increased as chain elongation progressed, playing a critical role in n-caproate production.
BIORESOURCE TECHNOLOGY
(2023)
Review
Green & Sustainable Science & Technology
T. Pinto, X. Flores-Alsina, K. Gernaey, H. Junicke
Summary: This paper summarizes the research done over the past decade on biobutanol production from low-value and waste residues, discussing different feedstock alternatives and the predominant biological pathways for butanol production in ABE fermentation and syngas fermentation. The review compares current titers, productivities and yields of single and mixed microbial cultures, showing the extent to which the mixed microbial culture approach can compete with pure cultures and delving into the advantages and obstacles of each technology. Based on low-value and waste residue feedstocks, there are clear incentives to use mixed microbial fermentation as the predominant production platform for biobutanol and focus future research on this promising technology.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Green & Sustainable Science & Technology
Nesrin Dursun, Hakki Gulsen
Summary: The study investigated the use of waste black cumin for biohydrogen production through dark fermentation, without any pretreatment, under different operating conditions. The best hydrogen production was achieved at pH 5.0, with Enterobacteria, Salmonella bongori, and other microbial populations identified as predominant at this pH level. This research concluded that waste black cumin can successfully be utilized for biohydrogen production.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2022)
Article
Green & Sustainable Science & Technology
Jingwei Ma, Zesen Wang, Lu Li, Zhou Shi, Shuizhou Ke, Qiulai He
Summary: The use of fluidized cathode with granular activated carbon (GAC) dosage can enhance the generation of caproate through chain elongation in electro-fermentation. The best performance was achieved with a GAC filling ratio of 8% and the cathode as the sole electron donor, resulting in significantly higher caproate yield, carbon recovery rate, and electron recovery rate.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Biotechnology & Applied Microbiology
Jialing Tang, Yunhui Pu, Jin Huang, Shengwang Pan, Xiaochang C. Wang, Yisong Hu, Huu Hao Ngo, Yuyou Li, Abdelfatah Abomohra
Summary: Substrate properties have a significant impact on caproate yield, and this study investigates the effect of lactate-to-acetate (LA/AA) carbon ratio and substrate loading on caproate fermentation. The optimal LA/AA carbon ratio and substrate-to-inoculums (S/I) ratio result in the highest caproate yield and selectivity.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Agricultural Engineering
He Liu, Chao Zhang, Ping Wu, Jing Li, Jie Zhang
Summary: This study compared the performances of Clostridium kluyveri, a chain elongation (CE) model strain, with or without bioaugmentation and in conventional or electro-fermentation systems. The results showed that bioaugmentation treatments, especially in electro-fermentation system, had better CE performance, with a highest caproate concentration of 4.68 g.L-1. Mechanism analysis revealed that C. kluyveri responded to the electric field and emerged synergy with the acetogens, which was supported by the increases of C. kluyveri colonization and the acetogens abundance in biofilm.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Philipp Kuntke, Mariana Rodriguez Arredondo, Laksminarastri Widyakristi, Annemiek ter Heijne, Tom H. J. A. Sleutels, Hubertus V. M. Hamelers, Cees J. N. Buisman
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2017)
Article
Energy & Fuels
W. J. van Egmond, M. Saakes, I. Noor, S. Porada, C. J. N. Buisman, H. V. M. Hamelers
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2018)
Review
Biotechnology & Applied Microbiology
P. Kuntke, T. H. J. A. Sleutels, M. Rodriguez Arredondo, S. Georg, S. G. Barbosa, A. ter Heijne, Hubertus V. M. Hamelers, C. J. N. Buisman
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2018)
Article
Engineering, Environmental
L. Legrand, O. Schaetzle, R. C. F. de Kler, H. V. M. Hamelers
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2018)
Article
Engineering, Chemical
S. Porada, W. J. van Egmond, J. W. Post, M. Saakes, H. V. M. Hamelers
JOURNAL OF MEMBRANE SCIENCE
(2018)
Article
Chemistry, Multidisciplinary
Philipp Kuntke, Mariana Rodrigues, Tom Sleutels, Michel Saakes, Hubertus V. M. Hamelers, Cees J. N. Buisman
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2018)
Article
Engineering, Chemical
M. Tedesco, H. V. M. Hamelers, P. M. Biesheuvel
JOURNAL OF MEMBRANE SCIENCE
(2018)
Article
Engineering, Chemical
E. J. Bodner, M. Saakes, T. Sleutels, C. J. N. Buisman, H. V. M. Hamelers
JOURNAL OF MEMBRANE SCIENCE
(2019)
Article
Physics, Applied
A. C. L. de Lichtervelde, A. ter Heijne, H. V. M. Hamelers, P. M. Biesheuvel, J. E. Dykstra
PHYSICAL REVIEW APPLIED
(2019)
Article
Electrochemistry
L. Legrand, O. Schaetzle, M. Tedesco, H. V. M. Hamelers
ELECTROCHIMICA ACTA
(2019)
Article
Chemistry, Physical
L. Legrand, Q. Shu, M. Tedesco, J. E. Dykstra, H. V. M. Hamelers
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2020)
Review
Engineering, Chemical
R. Parnamae, S. Mareev, V Nikonenko, S. Melnikov, N. Sheldeshov, V Zabolotskii, H. V. M. Hamelers, M. Tedesco
Summary: Bipolar membranes (BPMs) are a special class of ion-exchange membranes that generate protons and hydroxide ions via water dissociation mechanism, finding applications in various sectors. Research and development in BPMs over the past two decades have led to a growing market and attention due to technical, environmental, and economic advancements. This review article provides an overview of BPM technology, discussing the current state of the art, properties, theoretical models, applications, optimization, fabrication advances, and potential novel applications.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Claudia P. Pabon-Pereira, H. V. M. Hamelers, Irene Matilla, Jules B. van Lier
Article
Engineering, Environmental
Mariana Rodrigues, Tom Sleutels, Philipp Kuntke, Douwe Hoekstra, Annemiek ter Heijne, Cees J. N. Buisman, Hubertus V. M. Hamelers
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Engineering, Chemical
L. Zhang, H. V. M. Hamelers, P. M. Biesheuvel
JOURNAL OF MEMBRANE SCIENCE
(2020)
Article
Agricultural Engineering
Yinping Xiang, Meiying Jia, Rui Xu, Jialu Xu, Lele He, Haihao Peng, Weimin Sun, Dongbo Wang, Weiping Xiong, Zhaohui Yang
Summary: This study investigated the impact of the non-antibiotic pharmaceutical carbamazepine on antibiotic resistance genes (ARGs) during anaerobic digestion. The results showed that carbamazepine induced the enrichment of ARGs and increased the abundance of bacteria carrying these genes. It also facilitated microbial aggregation and intercellular communication, leading to an increased frequency of ARGs transmission. Moreover, carbamazepine promoted the acquisition of ARGs by pathogens and elevated their overall abundance.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Weixin Zhao, Tianyi Hu, Hao Ma, Dan Li, Qingliang Zhao, Junqiu Jiang, Liangliang Wei
Summary: This review summarizes the effects and potential mechanisms of biochar on microbial behavior in AD systems. The addition of biochar has been found to promote microbial colonization, alleviate stress, provide nutrients, and enhance enzyme activity. Future research directions include targeted design of biochar, in-depth study of microbial mechanisms, and improved models.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Christina Karmann, Anna Magrova, Pavel Jenicek, Jan Bartacek, Vojtech Kouba
Summary: This review assesses nitrogen removal technologies in reject water treatment, highlighting the differences in environmental impacts and economic benefits. Partial nitritation-anammox shows potential for economic benefits and positive environmental outcomes when operated and controlled properly.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Wei-Hao Huang, Ying-Ju Chang, Duu-Jong Lee
Summary: This study modified pinecone biochar with layered double hydroxide (LDH) to enhance its adsorption capacity for heavy metal and phosphate ions. The LDH-biochar showed significantly improved adsorption capacities for Pb2+ and phosphate, and a slight increase for Cu2+ and Co2+. The LDH layer enhanced the adsorption through various mechanisms.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Chao Song, Fanfan Cai, Shuang Yang, Ligong Wang, Guangqing Liu, Chang Chen
Summary: This paper developed a machine learning model to predict the biochemical methane potential during anaerobic digestion. Model analysis identified lignin content, organic loading, and nitrogen content as key attributes for methane production prediction. For feedstocks with high cellulose content, early methane production is lower but can be improved by prolonging digestion time. Moreover, lignin content exceeding a certain value significantly inhibits methane production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sang Min Lee, Ju Young Lee, Ji-Sook Hahn, Seung-Ho Baek
Summary: This study successfully developed an efficient platform strain using Yarrowia lipolytica for the bioconversion of renewable resources into adipic acid, achieving a remarkable increase in production level.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sefkan Kendir, Matthias Franzreb
Summary: This study presents a novel approach using magnetic separation to efficiently harvest freshwater microalgae, Chlorella vulgaris. By combining pH-induced calcium phosphate precipitation with cheap natural magnetite microparticles, harvesting efficiencies up to 98% were achieved in the model medium.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Ishaq Kariim, Ji-Yeon Park, Wajahat Waheed Kazmi, Hulda Swai, In-Gu Lee, Thomas Kivevele
Summary: The impact of reaction temperature, residence time, and ethanol: acetone on the energy compositions and yield enhancement of biocrudes was investigated. The results showed that under appropriate conditions, biocrudes with high energy and low oxygen content can be obtained, indicating a high potential for utilization.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xiyue Zhang, Xiyao Li, Liang Zhang, Yongzhen Peng
Summary: Intermittent aeration is an innovative approach to enhance nitrogen removal in low carbon-to-nitrogen ratio municipal sewage, providing an efficient strategy for the continuous plug-flow AOA process.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xu Yang, Mahmoud Mazarji, Mengtong Li, Aohua Li, Ronghua Li, Zengqiang Zhang, Junting Pan
Summary: This study investigated the impact of magnetite on the nitrogen cycle of pig manure biostabilisation. The addition of magnetite increased N2O emissions and decreased NH3 emissions during composting. It also increased the total nitrogen content but should be considered for its significant increase in N2O emissions in engineering practice.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Ty Shitanaka, Haylee Fujioka, Muzammil Khan, Manpreet Kaur, Zhi-Yan Du, Samir Kumar Khanal
Summary: The market value of microalgae has exponentially increased in the past two decades, thanks to their applications in various industries. However, the supply of high-value microalgal bioproducts is limited due to several factors, and strategies are being explored to overcome these limitations and improve microalgae production, thus increasing the availability of algal-derived bioproducts in the market.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Martin Kerner, Thorsten Wolff, Torsten Brinkmann
Summary: The efficiency of using enriched CO2 from flue gas for large-scale production of green microalgae has been studied. The results show that the use of membrane devices and static mixers can effectively improve the CO2 recovery rate and maintain the suitable pH and temperature during cultivation, achieving a more economical and sustainable microalgae production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rui Ma, Ji Li, Rd Tyagi, Xiaolei Zhang
Summary: This review summarizes the microorganisms capable of using CO2 and CH4 to produce PHAs, illustrating the production process, factors influencing it, and discussing optimization techniques. It identifies the challenges and future prospects for developing economically viable PHAs production using GHGs as a carbon source.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Bing Wang, Peng Zhang, Xu Guo, Xu Bao, Junjie Tian, Guomin Li, Jian Zhang
Summary: The addition of zeolite in the co-composting of chicken manure and straw significantly reduced the emissions of ammonia and N2O, and increased the nitrate content. Zeolite also promoted the abundance of nitrification genes and inhibited the expression of denitrification genes.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rohit Dey, Franziska Ortiz Tena, Song Wang, Josef Martin Messmann, Christian Steinweg, Claudia Thomsen, Clemens Posten, Stefan Leu, Matthias S. Ullrich, Laurenz Thomsen
Summary: This study investigated the operation of a 1000L microalgae-based membrane photobioreactor system for continuous secondary wastewater treatment. The research focused on a green microalgae strain called Desmodesmus sp. The study aimed to understand key trends and optimization strategies by conducting experiments in both summer and winter seasons. The findings showed that maintaining low cell concentrations during periods of light inhibition was beneficial for nutrient uptake rates. Effective strategies for enhancing algae-based wastewater treatment included cell mass recycling and adjusting dilution rates based on light availability.
BIORESOURCE TECHNOLOGY
(2024)
