Article
Environmental Sciences
Semra Ocak, Sevil Acar
Summary: Turkey heavily relies on fossil fuels as an energy importing country, leading to environmental issues and energy security concerns. This study in the Marmara Region highlights the potential of using biowastes to meet more than half of the region's electricity demand, providing cost-effective options such as direct combustion of agricultural wastes and conversion of animal wastes to biogas in CHP plants.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Agricultural Engineering
Jyoti Rani, Abhishek S. Dhoble
Summary: In this study, the potential of two less explored fungal strains, Trichoderma longibrachiatum (TL) and Pycnoporus sanguineus (PS), in improving the hydrolysis and bioavailability of rice straw in anaerobic digestion (AD) was evaluated. The fungal treatment of rice straw for 10 days by TL and PS increased biogas production and reduced soluble chemical oxygen demand (sCOD). The microbial communities in treated samples showed increased diversity, contributing to better process performance and enhanced resilience against pH fluctuations.
BIORESOURCE TECHNOLOGY
(2023)
Review
Environmental Sciences
Jechan Lee, Seonho Lee, Kun-Yi Andrew Lin, Sungyup Jung, Eilhann E. Kwon
Summary: Odor is a critical environmental problem that affects people's quality of life. Biochar can be used to reduce odor emissions from wastewater treatment plants and contribute to carbon neutrality.
ENVIRONMENTAL POLLUTION
(2023)
Review
Chemistry, Analytical
Tawanda Matamba, Arash Tahmasebi, Jianglong Yu, Alireza Keshavarz, Hussein Rasool Abid, Stefan Iglauer
Summary: This paper extensively reviews the production of hydrogen rich gas and the advantages of polygeneration during biomass conversation through pyrolysis. It discusses the effect of reaction conditions and different innovative pyrolysis setups on the formation of hydrogen and other value-added chemicals. The use of high temperature, high pressure, and catalysts is reported to enhance hydrogen production. Two-stage pyrolysis reaction systems are found to improve the production of hydrogen and value-added chemicals compared to one-stage systems. The polygeneration effect of biomass pyrolysis is also reviewed, highlighting its significance in meeting the demand and supply of renewable energy.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Environmental Sciences
Elizandro Oliveira Silveira, Nathalia Mendes Felizzola, Eugenia Vargas Hickmann, Odorico Konrad, Carlos Alexandre Lutterbeck, Enio Leandro Machado, Lucia Ribeiro Rodrigues
Summary: The present study evaluated the potential for biogas generation from microalgae biomass and macrophytes used in vertical flow constructed wetlands. The results showed that this method can effectively degrade pollutants while producing usable biomass energy and biogas.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Environmental Sciences
Mamta Bhandari, Pushpendar Kumar, Pankaj Bhatt, Halis Simsek, Ravinder Kumar, Aman Chaudhary, Anushree Malik, Sanjeev Kumar Prajapati
Summary: Eutrophication poses a major challenge in aquatic environments due to the discharge of nutrient-rich industrial wastewater. Algae offer a sustainable solution for wastewater treatment, with the potential for biomass production and biofuel generation. Factors such as growth media composition, light intensity, temperature, and pH influence algal growth and remediation potential. Additionally, anaerobic digestion of wastewater-grown algae can produce methane-rich biogas, further enhancing the potential of this technology.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Thomas Steiner, Julia N. Moeller, Martin G. J. Loeder, Frank Hilbrig, Christian Laforsch, Ruth Freitag
Summary: High-caloric-value household biowaste is a desirable substrate for biogas and fertilizer production, but it is often contaminated by plastic packaging. This study found that fertilizer from biowaste treatment plants had significant plastic contamination, while fertilizer from agricultural biogas plants and greenery composts had minimal contamination. The level of contamination appeared to be influenced by operating conditions, with shredding of incoming material increasing the degree of contamination.
WASTE AND BIOMASS VALORIZATION
(2023)
Article
Energy & Fuels
Laura Rivera-Montenegro, Edgardo Valenzuela, Armando Gonzalez-Sanchez, Raul Munoz, Guillermo Quijano
Summary: Volatile methyl siloxanes (VMS) generated from the metabolism of polydimethylsiloxanes (PDMS) in anaerobic digestion processes are biogas pollutants. In recent years, the widespread presence of VMS in different types of biogas has been demonstrated due to the intensive use of PDMS in various products. This review provides an overview of VMS concentrations in biogas, available physical-chemical technologies, and alternative biological processes for VMS removal. Critical research niches and challenges towards the consolidation of efficient and cost-effective VMS treatment systems are identified and discussed.
BIOENERGY RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Dawid Szwarc, Anna Nowicka, Marcin Zielinski
Summary: This study compared the use of pulsed electric field (PEF) pretreatment and ultrasonic disintegration (UP) to increase methane production from chicken manure. Both PEF and UP pretreatment increased methane production, with PEF showing a slightly higher increase in methane production compared to UP. Overall, this study demonstrated the potential of PEF and UP as pretreatment methods for enhancing methane production from lignocellulosic substrates.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Multidisciplinary
Yeling Zhu, Michael Chae, Birendra Adhikari, Vinay Khatri, Heather Kaminsky, Paolo Mussone, David C. Bressler
Summary: A novel flocculant was developed in this study using peptides from specified risk materials (SRMs) from the animal rendering industry, which achieved a similar settling rate but a more complete ultimate dewatering compared to a petrochemical-based flocculant (HPAM). The peptide-PAE materials reduced the fine solids' net surface charge and facilitated rapid aggregations of highly suspended solids, showing great potential for addressing waste sludge challenges for industrial sustainability.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Biotechnology & Applied Microbiology
Sofie E. Svensson, Ludmila Bucuricova, Jorge A. Ferreira, Pedro F. Souza Filho, Mohammad J. Taherzadeh, Akram Zamani
Summary: Filamentous fungi can be utilized to valorize food waste, such as bread waste, into a value-added product rich in protein and fatty acids, serving as a source of microfibers.
FERMENTATION-BASEL
(2021)
Article
Energy & Fuels
Parralejo Alcobendas Ana Isabel, Royano Barroso Luis, Cabanillas Patilla Juan, Gonzalez Cortes Jeronimo
Summary: In this study, a comparison was made between leguminous plant biomass and pig manure in anaerobic co-digestion process to evaluate their methane production. The results showed that nitrogen-rich biomass had higher methane yield and the resulting digestate could be used as a valuable fertilizer.
Article
Engineering, Chemical
Ksenia Velmozhina, Polina Shinkevich, Viacheslav Zhazhkov, Natalia Politaeva, Vadim Korablev, Iaroslav Vladimirov, Tania Carbonell Morales
Summary: This article explores the feasibility of producing biohydrogen from microalgae after being used in wastewater purification and CO2 removal from the air. The authors investigated different methods for disrupting microalgae cell membranes and their effects on biohydrogen yield. The results showed that thermal and acid treatments resulted in the highest hydrogen production, while microwave radiation did not yield significant results. Treatment enhanced biohydrogen yield.
Article
Food Science & Technology
Taner Sar, Karin Larsson, Rikard Fristedt, Ingrid Undeland, Mohammad J. Taherzadeh
Summary: This study investigated the production of fungal biomass using edible potato protein liquor and examined the protein and fatty acid profiles of the produced biomass. The results showed that the fungal biomass produced by R. delemar could be a promising raw material for food and feed production.
Article
Agricultural Engineering
Eirini Zkeri, Athanasia Iliopoulou, Alexandra Katsara, Angeliki Korda, Maria Aloupi, Georgia Gatidou, Michail S. Fountoulakis, Athanasios S. Stasinakis
Summary: Two systems were compared for medium-strength dairy wastewater treatment, with one achieving energy autonomy through a combination of a methanogenic reactor and an aerobic reactor, effectively removing COD, NH4-N, TKN, and PO4-P. The other system, using a reactor and Chlorella sorokiniana, completely removed COD but only partially removed other pollutants.
BIORESOURCE TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Sebastian Fluechter, Stephanie Follonier, Bettina Schiel-Bengelsdorf, Frank R. Bengelsdorf, Manfred Zinn, Peter Duerre
Article
Biotechnology & Applied Microbiology
Susanne G. Langer, Christina Gabris, Daniel Einfalt, Bernd Wemheuer, Marian Kazda, Frank R. Bengelsdorf
MICROBIAL BIOTECHNOLOGY
(2019)
Article
Biotechnology & Applied Microbiology
Matthias H. Beck, Maximilian Flaiz, Frank R. Bengelsdorf, Peter Duerre
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2020)
Article
Microbiology
Stephanie Redl, Anja Poehlein, Carola Esser, Frank R. Bengelsdorf, Torbjorn O. Jensen, Christian B. Jendresen, Brian J. Tindall, Rolf Daniel, Peter Duerre, Alex T. Nielsen
FRONTIERS IN MICROBIOLOGY
(2020)
Article
Microbiology
Maximilian Flaiz, Tina Baur, Sven Brahner, Anja Poehlein, Rolf Daniel, Frank R. Bengelsdorf
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2020)
Article
Biotechnology & Applied Microbiology
Maria Hermann, Attila Teleki, Sandra Weitz, Alexander Niess, Andreas Freund, Frank R. Bengelsdorf, Ralf Takors
MICROBIAL BIOTECHNOLOGY
(2020)
Article
Biotechnology & Applied Microbiology
Maria Hermann, Attila Teleki, Sandra Weitz, Alexander Niess, Andreas Freund, Frank Robert Bengelsdorf, Peter Durre, Ralf Takors
Summary: This study presents the syngas-based isobutanol formation using Clostridium ljungdahlii, highlighting the key bottlenecking precursors of KIV and pyruvate supply. Further metabolic engineering is needed to focus on debottlenecking NADPH availability for improved isobutanol production.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Maximilian Flaiz, Gideon Ludwig, Frank R. Bengelsdorf, Peter Duerre
Summary: The addition of FAST as an oxygen-independent fluorescent reporter protein expands the genetic toolbox of E. limosum. Our results show that FAST-tagged fusion proteins can be constructed without negatively impacting the stability, functionality, and productivity of the resulting enzyme. Butanol and acetone can be produced from methanol using recombinant E. limosum strains expressing genes encoding fluorescent FAST-tagged fusion proteins.
BIOTECHNOLOGY FOR BIOFUELS
(2021)
Article
Biotechnology & Applied Microbiology
Sandra Weitz, Maria Hermann, Sonja Linder, Frank R. Bengelsdorf, Ralf Takors, Peter Duerre
Summary: Two different isobutanol synthesis pathways were expressed in two model acetogenic bacteria, showing significant influence of pathway selection and reaction conditions on isobutanol production in different bacteria.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Alexander Mook, Matthias H. Beck, Jonathan P. Baker, Nigel P. Minton, Peter Durre, Frank R. Bengelsdorf
Summary: This study aimed to construct and characterize Acetobacterium woodii strains capable of autotrophic lactate production by knocking out genes responsible for lactate consumption and expressing a d-lactate dehydrogenase gene from Leuconostoc mesenteroides. Additionally, the study introduced a fluorescence-based reporter tool to quickly analyze gene expression and optimize production strains.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2022)
Article
Biochemical Research Methods
Kubra Arslan, Teresa Schoch, Franziska Hoefele, Sabrina Herrschaft, Catarina Oberlies, Frank Bengelsdorf, Maria C. Veiga, Peter Duerre, Christian Kennes
Summary: Genetically modified Acetobacterium woodii strains showed promising results in producing acetone from CO2 and hydrogen, indicating the potential for developing new solvents using C1 gases.
BIOTECHNOLOGY JOURNAL
(2022)
Article
Biotechnology & Applied Microbiology
Jan Herzog, Alexander Mook, Lotta Guhl, Miriam Baumler, Matthias H. Beck, Dirk Weuster-Botz, Frank R. Bengelsdorf, An-Ping Zeng
Summary: In this study, a successful autotrophic co-cultivation of Acetobacterium woodii mutants and Clostridium drakei wild-type strain for the production of caproic acid from CO2 and H-2 was achieved in a stirred-tank bioreactor. The recombinant A. woodii strain with a deleted Lct-dehydrogenase complex and an inserted D-lactate dehydrogenase from Leuconostoc mesenteroides was used for autotrophic lactate production. However, hydrogen limitation was identified in the process, which can be overcome by cathode surface area enlargement or on-demand hydrogen generation.
ENGINEERING IN LIFE SCIENCES
(2023)
Article
Microbiology
Teresa Schoch, Franziska Hoefele, Hannah Odeh, Lisa-Maria Winter, Sophia Stoeferle, Michael Karl, Frank Bengelsdorf, Anja Poehlein, Rolf Daniel, Peter Duerre
Summary: Based on genomic and phenotypic investigations, this study found a high similarity between Clostridium aurantibutyricum, Clostridium felsineum, and Clostridium roseum, and proposes the reclassification of C. aurantibutyricum and C. roseum as later heterotypic synonyms of C. felsineum.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Jan Herzog, Alexander Mook, Tyll Utesch, Frank R. Bengelsdorf, An-Ping Zeng
Summary: Syngas fermentation processes with acetogens have the potential to reduce CO2 emissions and produce bulk chemicals. This study investigates the thermodynamic limits of acetogens in designing a fermentation process, using an anaerobic reactor and an All-in-One electrode for in-situ H-2 generation. The results show that controlling lactate production and adjusting H-2 formation using automated process control can achieve steady lactate concentrations and improve the production of medium chain fatty acids.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2023)
Article
Microbiology
Frank R. Bengelsdorf, Anja Poehlein, Rolf Daniel, Peter Duerre
MICROBIOLOGY RESOURCE ANNOUNCEMENTS
(2019)