Article
Energy & Fuels
Tharifkhan Shan Ahamed, Kathirvel Brindhadevi, Ramakrishnan Krishnan, Tran Nhat Phuong, Sulaiman Ali Alharbi, Arunachalam Chinnathambi, Thangavel Mathimani
Summary: This study investigates the growth and lipid composition of the green alga Nannochloropsis sp. under nitrogen sufficient and nitrogen starvation conditions. It found that nitrogen starvation led to higher biomass yield, increased neutral lipids as oil bodies, and higher triacylglycerols (TAGs) content. Analysis also showed a different fatty acid composition, with oleic acid methyl ester, behenic acid methyl ester, and cis-11, 14, 17-eicosatrienoic acid methyl ester being the predominant fatty acids under nitrogen depletion. These findings suggest that Nannochloropsis sp. is a promising candidate for pilot scale biodiesel production.
Article
Energy & Fuels
Rafael G. Lacalle, Maria T. Gomez-Sagasti, Carlos Garbisu, Jose M. Becerril
Summary: This study investigated the degradation dynamics of commercially-available biodiesel blends in soil polluted with metals, and found that biodiesel had a lower impact on soil health compared to diesel. Soil health was improved when bio-stabilized municipal solid waste was added as organic amendment, enhancing FAME degradation and microbial activity while reducing phytotoxicity.
Article
Veterinary Sciences
Kirsten B. Theinert, Teja Snedec, Fabian Pietsch, Sabrina Theile, Anne-Sophie Leonhardt, Joachim Spilke, Stefan Pichelmann, Erik Bannert, Kristin Reichelt, Gabriele Dobeleit, Herbert Fuhrmann, Walter Baumgartner, Melanie Schaeren-Bannert, Alexander Starke
Summary: Fatty liver syndrome (FLS) is a common disease in high-producing dairy cows. This study aimed to generate primary data on healthy cows to serve as reference values for future research. The results showed that hepatic fat storage is a reversible process and does not necessarily cause clinical disease. However, older cows had a more sustained and greater increase in hepatic TAG concentration, which may explain their increased risk of FLS.
FRONTIERS IN VETERINARY SCIENCE
(2022)
Article
Energy & Fuels
Maliheh Esfahanian, Tara J. Nazarenus, Meghan M. Freund, Gary McIntosh, Winthrop B. Phippen, Mary E. Phippen, Timothy P. Durrett, Edgar B. Cahoon, John C. Sedbrook
Summary: Genetic transformation of pennycress allows for the production of seed oils rich in medium-chain fatty acids, suitable for industrial and biofuel applications, with minor delays in seed germination rates observed in some cases.
FRONTIERS IN ENERGY RESEARCH
(2021)
Article
Biochemistry & Molecular Biology
Susrita Sahoo, Budheswar Dehury, Parminder Kaur Narang, Vishakha Raina, Namrata Misra, Mrutyunjay Suar
Summary: This study investigated the structural and conserved domain features of algal Triacylglycerol lipase (TAGL) through a genome-wide comparative analysis. A 3D model of the patatin domain of TAGL from an oleaginous microalga was developed for the first time using homology modeling. Simulation results indicated a stable conformation of the substrate-complexed patatin domain and free enzyme after 40 ns, providing insights into the catalytic mechanism.
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
(2022)
Article
Chemistry, Multidisciplinary
Walid Kamal Abdelbasset, Saud M. Alrawaili, Shereen H. Elsayed, Tazeddinova Diana, Sami Ghazali, Bassem F. Felemban, Mohammed Zwawi, Mohammed Algarni, Chia-Hung Su, Hoang Chinh Nguyen, Omar Mahmoud
Summary: There is a growing attention to bio and renewable energies due to the depletion of fossil fuels and global warming. In this study, a modeling and simulation method using artificial intelligence (AI) was developed to predict the production of bioenergy from vegetable bean oil. Various AI methods were applied to predict the yield of Fatty acid methyl esters (FAME) production, and the models were evaluated using different metrics. The results showed high accuracy and the boosted SVR and ANN models demonstrated better prediction efficiency.
ARABIAN JOURNAL OF CHEMISTRY
(2022)
Article
Plant Sciences
Sota Takahashi, Riho Okubo, Yu Kanesaki, Baifeng Zhou, Kazuhiro Takaya, Satoru Watanabe, Kan Tanaka, Sousuke Imamura
Summary: This study identified four transcription factors in the unicellular red alga Cyanidioschyzon merolae that positively regulate triacylglycerol accumulation, with overexpression of LPAT1 notably increasing triacylglycerol content.
Article
Agricultural Engineering
Sri Divya Kuravi, S. Venkata Mohan
Summary: In this study, Monoraphidium sp. SVMIICT6 was cultivated in a flat-panel photobioreactor to treat synthetic dairy wastewater. The results showed high removal efficiencies of COD, nitrates, and phosphates, as well as the production of abundant biomass.
BIORESOURCE TECHNOLOGY
(2022)
Review
Energy & Fuels
Carsten Wedler, J. P. Martin Trusler
Summary: Biodiesel fuels are comprised of a mixture of different fatty acid esters, which have significant effects on combustion and storage. This study reviews the available experimental data on density and viscosity of fatty acid methyl, ethyl, and butyl esters and identifies gaps in the literature. The research includes 16 different esters from three ester families and provides an overview of generalized models for describing density and viscosity at elevated pressures.
Article
Environmental Sciences
Hong-Yu Ren, Xueting Song, Fanying Kong, Qingqing Song, Nan-Qi Ren, Bing-Feng Liu
Summary: In this study, a new microalgal strain, Asterarcys quadricellulare R-56, was isolated and found to be a promising lipid producer for high-quality biodiesel production. The effects of carbon and nitrogen sources, as well as initial pH, on the cell growth and lipid accumulation of strain R-56 were investigated. Optimal conditions for biomass and lipid production were found to be 10 g L-1 glucose, 0.6 g L-1 sodium nitrate, and pH 7.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
Xiaohai Zheng, Panjie Yu, Yaxin Liu, Yongde Ma, Yanning Cao, Zhenping Cai, Linsen Zhou, Kuan Huang, Shoutian Zheng, Lilong Jiang
Summary: This study systematically investigated the hydrogenation of methyl palmitate (MP) to hexadecanol over defect-rich Cu/m-ZrO2 catalysts. It was found that Cu/m-ZrO2-350 catalyst exhibited the best activity for MP hydrogenation due to its highest Cu dispersion, largest number of Cu0 sites, and surface oxygen vacancy concentration. The synergistic effect of Cu species and oxygen vacancies provides insights for the design of efficient catalysts for the conversion of fatty esters to fatty alcohols.
Article
Green & Sustainable Science & Technology
Tobi Abimbola, Christos Christodoulatos, Adeniyi Lawal
Summary: The study investigated the impact of total solids content and solvent-to-biomass ratio on oil recovery from marine and freshwater algae. Results showed that the solvent-to-biomass ratio had an effect on oil recovery, while the total solids content had a greater impact on oil yield.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Thermodynamics
Leila Fereidooni, Azam Pirkarami, Ebrahim Ghasemi, Alibakhsh Kasaeian
Summary: In this study, a novel electrocatalytic conversion system based on ZnAl-layered double hydroxide (LDH)@SiO2 as the catalyst was developed for the production of fatty acid methyl ester (FAME) from waste frying oil (WFO). The inclusion of SiO2 improved the catalyst's basicity and exposed more oxygen atoms, leading to better conversion efficiency. The electrocatalytic system not only achieved high FAME yield but also showed stability for WFO conversion after multiple runs.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Chemistry, Physical
Yingdong Zhou, Li Liu, Guiying Li, Changwei Hu
Summary: In the study, it was found that Co/mix-ZrO2 catalyst showed the highest activity and stability for methyl laurate hydrogenation, with the oxygen vacancies and exposed Co crystal planes playing important roles in influencing the reaction.
Article
Biotechnology & Applied Microbiology
Zhen Zhu, Huijiao Cao, Xu Li, Junfeng Rong, Xupeng Cao, Jing Tian
Summary: The engineered strain of Chlamydomonas reinhardtii, named P3-GAPDH, overexpressing chloroplast type glyceraldehyde-3-phosphate dehydrogenase (cGAPDH), showed enhanced Calvin cycle, promoting carbon conversion and subsequent energy storage compounds accumulation, indicating high carbon conversion ability.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Chemistry, Physical
Abdelrhman Mohamed, Phuc T. Ha, Brent M. Peyton, Rebecca Mueller, Michelle Meagher, Haluk Beyenal
JOURNAL OF POWER SOURCES
(2019)
Article
Biotechnology & Applied Microbiology
Tisza Ann Szeremy Bell, Lakotah Doig, Brent M. Peyton, Robin Gerlach, Matthew W. Fields
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2019)
Article
Microbiology
Camilla Urbaniak, Season Wong, Scott Tighe, Arunkumar Arumugam, Bo Liu, Ceth W. Parker, Jason M. Wood, Nitin K. Singh, Dana J. Skorupa, Brent M. Peyton, Ryan Jenson, Fathi Karouia, Julie Dragon, Kasthuri Venkateswaran
FRONTIERS IN MICROBIOLOGY
(2020)
Review
Biotechnology & Applied Microbiology
Adriana L. Alvarez, Sharon L. Weyers, Hannah M. Goemann, Brent M. Peyton, Robert D. Gardner
Summary: Microalgae, as renewable resources, have a wide range of applications in agriculture and can positively impact agricultural productivity. Research not only highlights the potential role of microalgae in agriculture, but also discusses their technological advancements and future research directions.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2021)
Article
Agronomy
Hannah M. Goemann, Justin D. Gay, Rebecca C. Mueller, E. N. J. Brookshire, Perry Miller, Benjamin Poulter, Brent M. Peyton
Summary: This study investigates the simultaneous use of perennial cropping systems and microbial biofertilizer supplements as emerging strategies to increase agricultural sustainability. Results show that supplementing synthetic fertilization with a nitrogen-fixing cyanobacterial biofertilizer during the establishment phase of a perennial switchgrass stand in SW Montana, USA, can maintain aboveground crop productivity and increase late-season nitrogen availability in the soil. High-throughput sequencing of microbial communities revealed fine-scale responses and sensitivities to fertilization among different bacterial/archaeal and fungal groups. Monitoring soil microbiome is crucial to understand the impacts of alternative agricultural practices on soil health.
GLOBAL CHANGE BIOLOGY BIOENERGY
(2021)
Article
Microbiology
Kristopher A. Hunt, Natasha D. Mallette, Brent M. Peyton, Ross P. Carlson
Summary: Functionalized hydrocarbons with various uses can be produced using the endophytic fungus Ascocoryne sarcoides, with in silico analysis identifying production routes and metabolic engineering targets to enhance production limits, especially under anoxic conditions.Integration of in silico framework with in vitro experiments supports O-2 limitation and production predictions for a wide range of functionalized hydrocarbons.
Article
Biotechnology & Applied Microbiology
Margaux M. Mesle, Rebecca C. Mueller, Jesse Peach, Brian Eilers, Brian P. Tripet, Brian Bothner, Valerie Copie, Brent M. Peyton
Summary: The microbial degradation of lignocellulose in natural ecosystems presents biotechnological opportunities, including biofuel production. In this study, specific thermophiles capable of degrading lignin and cellulose under thermoalkaline conditions were isolated and characterized. The results support the potential applications of these microorganisms in downstream biotechnological processes.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2022)
Correction
Biotechnology & Applied Microbiology
Margaux M. Mesle, Rebecca C. Mueller, Jesse Peach, Brian Eilers, Brian P. Tripet, Brian Bothner, Valerie Copie, Brent M. Peyton
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2022)
Article
Microbiology
Madelyn K. Mettler, Ceth W. Parker, Kasthuri Venkateswaran, Brent M. Peyton
Summary: Biofilms can cause various problems in water and engineered systems, and their control is particularly important in the International Space Station. This study investigated the use of a space flown bacterial strain and a novel antimicrobial coating to reduce biofilm formation on different materials. The results showed that the coating was effective in reducing biofilms, but its efficacy varied depending on the culture medium used.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Multidisciplinary Sciences
Danielle E. M. Ulrich, Chaevien S. Clendinen, Franklin Alongi, Rebecca C. Mueller, Rosalie K. Chu, Jason Toyoda, La Verne Gallegos-Graves, Hannah M. Goemann, Brent Peyton, Sanna Sevanto, John Dunbar
Summary: Plant survival during environmental stress greatly affects ecosystem carbon cycling, and plant-microbe interactions are central to plant stress survival. This study found that as drought severity increased, root exudate concentration and composition changed, with higher amounts of total carbon and organic carbon. The composition of root exudates mirrored the physiological gradient of drought severity treatments. Despite reducing carbon uptake, plants actively invested carbon to root exudates with increasing drought severity.
SCIENTIFIC REPORTS
(2022)
Article
Agronomy
Justin D. Gay, Hannah M. Goemann, Bryce Currey, Paul C. Stoy, Jesper Riis Christiansen, Perry R. Miller, Benjamin Poulter, Brent M. Peyton, E. N. Jack Brookshire
Summary: This study examines the effects of different fertilizer strategies on biomass, greenhouse gas fluxes, soil organic carbon, and soil microbiome of perennial grasses in a semi-arid agroecosystem. The results show that the C3 grass had higher productivity and nitrogen use efficiency compared to the C4 grass when fertilized. The C4 grass resulted in a net loss of soil organic carbon, while the C3 grass had a net gain. Additionally, the two crops showed different soil microbiome compositions.
GLOBAL CHANGE BIOLOGY BIOENERGY
(2022)
Article
Multidisciplinary Sciences
Jesse T. Peach, Rebecca C. Mueller, Dana J. Skorupa, Margaux M. Mesle, Sutton Kanta, Eric Boltinghouse, Bailey Sharon, Valerie Copie, Brian Bothner, Brent M. Peyton
Summary: This study focuses on the relationship between microbial populations and small molecule composition in thermoalkaline springs. By analyzing four datasets including geochemistry, microbial communities, metabolites, and extracellular small molecules, it is found that the composition of microbial communities is more closely related to pools of extracellular small molecules than to the geochemistry of the thermal springs.
SCIENTIFIC REPORTS
(2022)
Article
Microbiology
Madelyn K. Mettler, Hannah M. Goemann, Rebecca C. Mueller, Oscar A. Vanegas, Gabriela Lopez, Nitin Singh, Kasthuri Venkateswaran, Brent M. Peyton
Summary: Although life has not yet been discovered on Mars, microbial contamination from Earth may occur during rover expeditions and human exploration. Biofilms, which provide survival advantages for microorganisms, are of particular concern for planetary protection. Models and data from the NASA Phoenix mission suggest the presence of temporary liquid water, in the form of high salinity brines, on Mars. These brines could offer colonization opportunities for terrestrial microorganisms brought by spacecraft or humans. Laboratory models of Martian saline seeps, inoculated with sediment from a terrestrial saline seep in Montana, have provided important insights into the potential establishment and colonization of microbes on Mars. The results show significant selection of halophilic microorganisms and the detection of microbial sequences similar to those found in spacecraft assembly clean-rooms. These models serve as a foundation for identifying potential hitch-hiking microbes and informing sterilization procedures in cleanrooms.
Review
Microbiology
Rebecca C. Mueller, Jesse T. Peach, Dana J. Skorupa, Valerie Copie, Brian Bothner, Brent M. Peyton
Summary: Advances in sequencing technologies have expanded our knowledge of the diversity within the domain Archaea. Archaea found in thermoalkaline environments may have divergent communities and metabolic pathways compared to those in acidic or circumneutral systems. Emerging multi-omics approaches, such as proteomics and metabolomics, offer potential to enhance our understanding of archaea in extreme thermoalkaline systems.
FEMS MICROBIOLOGY ECOLOGY
(2021)
Review
Microbiology
Luis Zea, Robert J. C. McLean, Tony A. Rook, Geoffrey Angle, D. Layne Carter, Angela Delegard, Adrian Denvir, Robin Gerlach, Sridhar Gorti, Doug McIlwaine, Mononita Nur, Brent M. Peyton, Philip S. Stewart, Paul Sturman, Yo Ann Velez Justiniano