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https://www.readbyqxmd.com/read/28724110/coal-bed-methane-water-effects-on-soil-properties-and-camelina-productivity
#1
Henry Y Sintim, Valtcho D Zheljazkov, Michael E Foley, Roque L Evangelista
Every year, the production of coal-bed natural gas in the Powder River Basin results in the discharge of large amounts of coal-bed methane water (CBMW) in Wyoming; however, no sustainable disposal methods for CBMW are currently available. A greenhouse study was conducted to evaluate the potential to use CBMW as a source of irrigation water for camelina [ (L.) Crantz]. We assessed the effects of three CBMW concentrations (0% [1:0], 50% [1:1], and 100% [0:1] tap water to CBMW) on selected soil properties, growth, seed oil, and fatty acid composition of three camelina cultivars: Blaine Creek, Ligena, and Pronghorn...
May 2017: Journal of Environmental Quality
https://www.readbyqxmd.com/read/28720799/reduced-ultrafine-particle-levels-in-s%C3%A3-o-paulo-s-atmosphere-during-shifts-from-gasoline-to-ethanol-use
#2
Alberto Salvo, Joel Brito, Paulo Artaxo, Franz M Geiger
Despite ethanol's penetration into urban transportation, observational evidence quantifying the consequence for the atmospheric particulate burden during actual, not hypothetical, fuel-fleet shifts, has been lacking. Here we analyze aerosol, meteorological, traffic, and consumer behavior data and find, empirically, that ambient number concentrations of 7-100-nm diameter particles rise by one-third during the morning commute when higher ethanol prices induce 2 million drivers in the real-world megacity of São Paulo to substitute to gasoline use (95% confidence intervals: +4,154 to +13,272 cm(-3))...
July 18, 2017: Nature Communications
https://www.readbyqxmd.com/read/28719999/comparison-of-anticancer-activity-of-biocompatible-zno-nanoparticles-prepared-by-solution-combustion-synthesis-using-aqueous-leaf-extracts-of-abutilon-indicum-melia-azedarach-and-indigofera-tinctoria-as-biofuels
#3
G K Prashanth, P A Prashanth, B M Nagabhushana, S Ananda, G M Krishnaiah, H G Nagendra, H M Sathyananda, C Rajendra Singh, S Yogisha, S Anand, Y Tejabhiram
Recently, there has been an upsurge in the use of naturally available fuels for solution combustion synthesis (SCS) of nanoparticles. Although many reports suggest that these biofuels pose less harm to the environment, their strategic advantages and reliability for making NPs has not been discussed. In the present work, we try to address this issue using plant extracts as biofuels for the SCS of zinc oxide nanoparticles as a model system. In the present work, combustion synthesis of ZnO NPs using lactose and aqueous leaf extracts of Abutilon indicum, Melia azedarach, Indigofera tinctoria as biofuels has been carried out...
July 18, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28717018/structure-and-properties-of-oil-bodies-in-diatoms
#4
REVIEW
Yoshiaki Maeda, Daisuke Nojima, Tomoko Yoshino, Tsuyoshi Tanaka
Diatoms accumulate triacylglycerols in spherical organelles called oil bodies when exposed to nutrient deprivation conditions. Oil body biology in diatoms has attracted significant attention due to the complexity of the intracellular organelles and the unique combination of genes generated by the evolutionary history of secondary endosymbiosis. The demand for biofuel production has further increased the interest in and importance of a better understanding of oil body biology in diatoms, because it could provide targets for genetic engineering to further enhance their promising lipid accumulation...
September 5, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28714748/no-adverse-lung-effects-of-7-and-28-day-inhalation-exposure-of-rats-to-emissions-from-petrodiesel-fuel-containing-20-rapeseed-methyl-esters-b20-with-and-without-particulate-filter-the-fuelhealth-project
#5
Pål Magnusson, Michał Oczkowski, Johan Øvrevik, Malgorzata Gajewska, Jacek Wilczak, Jacek Biedrzycki, Katarzyna Dziendzikowska, Dariusz Kamola, Tomasz Królikowski, Marcin Kruszewski, Anna Lankoff, Remigiusz Mruk, Gunnar Brunborg, Christine Instanes, Joanna Gromadzka-Ostrowska, Oddvar Myhre
Increased use of biofuels raises concerns about health effects of new emissions. We analyzed relative lung health effects, on Fisher 344 rats, of diesel engine exhausts emissions (DEE) from a Euro 5-classified diesel engine running on petrodiesel fuel containing 20% rapeseed methyl esters (B20) with and without diesel particulate filter (DPF). One group of animals was exposed to DEE for 7 days (6 h/day), and another group for 28 days (6 h/day, 5 days/week), both with and without DPF. The animals (n = 7/treatment) were exposed in whole body exposure chambers...
July 17, 2017: Inhalation Toxicology
https://www.readbyqxmd.com/read/28714306/meta-analysis-and-harmonization-of-life-cycle-assessment-lca-studies-for-algae-biofuels
#6
Qingshi Tu, Matthew J Eckelman, Julie B Zimmerman
Algae biodiesel (BioD) and renewable diesel (RD) have been recognized as potential solutions to mitigate fossil fuel consumption and the associated environmental issues. Life cycle assessment (LCA) has been used by many researchers to evaluate the potential environmental impacts of these algae-derived fuels yielding a wide range of results, in some cases even differing on indicating if these fuels are preferred to petroleum-derived or not. This meta-analysis reviews the methodological preferences and results for energy consumption, greenhouse gas emissions and water consumption for 54 LCA studies that considered algae BioD and RD...
July 17, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28714238/green-biofuels-and-bioproducts-bases-for-sustainability-analysis
#7
Juan L Ramos, Francisco García-Lorente, Miguel Valdivia, Estrella Duque
No abstract text is available yet for this article.
July 17, 2017: Microbial Biotechnology
https://www.readbyqxmd.com/read/28712780/a-review-of-biochar-based-catalysts-for-chemical-synthesis-biofuel-production-and-pollution-control
#8
REVIEW
Xinni Xiong, Iris K M Yu, Leichang Cao, Daniel C W Tsang, Shicheng Zhang, Yong Sik Ok
This review addresses the use of biochar as a green and versatile catalyst support for emerging high-end applications beyond soil remediation, including chemical synthesis and biodiesel production from biomass, and pollutant degradation in the environment. Their catalytic performances are comparable or even superior to the conventional resin-, silica-, or carbon-based catalysts, owing to the favourable intrinsic features of biochar (various functional groups, intricate network of structures, etc.). Yet, distinctive active sites are needed for different applications...
July 3, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28711801/effect-of-different-nitrogen-fertilizer-treatments-on-the-conversion-of-miscanthus%C3%A3-giganteus-to-ethanol
#9
Bogdan Dubis, Katarzyna Bułkowska, Małgorzata Lewandowska, Władysław Szempliński, Krzysztof Józef Jankowski, Jakub Idźkowski, Natalia Kordala, Karolina Szymańska
Miscanthus×giganteus is a perennial rhizomatous grass which is used as a biofuel crop. Due to its high yields, low production costs, resistance to low temperatures, low soil requirements and, above all, high cellulose content, miscanthus can be a useful resource for ethanol production. The aim of this study was to determine the effect of two fertilization regimes (sewage sludge/mineral NPK) during miscanthus cultivation on the chemical composition of biomass, the content of major lignocellulosic factions and the effectiveness of miscanthus conversion to bioethanol...
July 4, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28711029/an-oxygen-independent-and-membrane-less-glucose-biobattery-supercapacitor-hybrid-device
#10
Xinxin Xiao, Peter Ó Conghaile, Dónal Leech, Roland Ludwig, Edmond Magner
Enzymatic biofuel cells can generate electricity directly from the chemical energy of biofuels in physiological fluids, but their power density is significantly limited by the performance of the cathode which is based on oxygen reduction for in vivo applications. An oxygen-independent and membrane-less glucose biobattery was prepared that consists of a dealloyed nanoporous gold (NPG) supported glucose dehydrogenase (GDH) bioanode, immobilised with the assistance of conductive polymer/Os redox polymer composites, and a solid-state NPG/MnO2 cathode...
July 11, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28710263/enzymatic-mechanism-for-arabinan-degradation-and-transport-in-the-thermophilic-bacterium-caldanaerobius-polysaccharolyticus
#11
Daniel Wefers, Jia Dong, Ahmed M Abdel-Hamid, Hans Müller Paul, Gabriel V Pereira, Yejun Han, Dylan Dodd, Ramiya Baskaran, Beth Mayer, Roderick I Mackie, Isaac Cann
The plant cell wall polysaccharide arabinan is an important supply of arabinose, and unraveling arabinan degrading strategies by microbes is important for understanding its use as a source of energy. Here, we explored the arabinan degrading enzymes in the thermophilic bacterium Caldanaerobius polysaccharolyticus and identified a gene cluster encoding two glycoside hydrolase (GH) family 51 α-L-arabinofuranosidases (CpAbf51A, CpAbf51B), a GH43 endo-arabinanase (CpAbn43A), a GH27 β-L-arabinopyranosidase (CpAbp27A), and two GH127 β-L-arabinofuranosidases (CpAbf127A, CpAbf127B)...
July 14, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28709883/pyrolysis-characteristics-and-kinetics-of-microalgae-via-thermogravimetric-analysis-tga-a-state-of-the-art-review
#12
REVIEW
Quang-Vu Bach, Wei-Hsin Chen
Pyrolysis is a promising route for biofuels production from microalgae at moderate temperatures (400-600°C) in an inert atmosphere. Depending on the operating conditions, pyrolysis can produce biochar and/or bio-oil. In practice, knowledge for thermal decomposition characteristics and kinetics of microalgae during pyrolysis is essential for pyrolyzer design and pyrolysis optimization. Recently, the pyrolysis kinetics of microalgae has become a crucial topic and received increasing interest from researchers...
June 19, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28709065/waste-to-methanol-process-and-economics-assessment
#13
Gaetano Iaquaniello, Gabriele Centi, Annarita Salladini, Emma Palo, Siglinda Perathoner, Luca Spadaccini
The waste-to-methanol (WtM) process and related economics are assessed to evidence that WtM is a valuable solution both from economic, strategic and environmental perspectives. Bio-methanol from Refuse-derived-fuels (RdF) has an estimated cost of production of about 110€/t for a new WtM 300t/d plant. With respect to waste-to-energy (WtE) approach, this solution allows various advantages. In considering the average market cost of methanol and the premium as biofuel, the WtM approach results in a ROI (Return of Investment) of about 29%, e...
July 1, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28706061/bulking-up-algae-for-biofuels
#14
Barbara R Jasny
No abstract text is available yet for this article.
July 14, 2017: Science
https://www.readbyqxmd.com/read/28704927/the-tor-signaling-network-in-the-model-unicellular-green-alga-chlamydomonas-reinhardtii
#15
REVIEW
María Esther Pérez-Pérez, Inmaculada Couso, José L Crespo
Cell growth is tightly coupled to nutrient availability. The target of rapamycin (TOR) kinase transmits nutritional and environmental cues to the cellular growth machinery. TOR functions in two distinct multiprotein complexes, termed TOR complex 1 (TORC1) and TOR complex 2 (TORC2). While the structure and functions of TORC1 are highly conserved in all eukaryotes, including algae and plants, TORC2 core proteins seem to be missing in photosynthetic organisms. TORC1 controls cell growth by promoting anabolic processes, including protein synthesis and ribosome biogenesis, and inhibiting catabolic processes such as autophagy...
July 12, 2017: Biomolecules
https://www.readbyqxmd.com/read/28702371/hydrogen-from-algal-biomass-a-review-of-production-process
#16
REVIEW
Archita Sharma, Shailendra Kumar Arya
Multifariousness of biofuel sources has marked an edge to an imperative energy issue. Production of hydrogen from microalgae has been gathering much contemplation right away. But, mercantile production of microalgae biofuels considering bio-hydrogen is still not practicable because of low biomass concentration and costly down streaming processes. This review has taken up the hydrogen production by microalgae. Biofuels are the up and coming alternative to exhaustible, environmentally and unsafe fossil fuels...
September 2017: Biotechnology Reports
https://www.readbyqxmd.com/read/28702370/in-vitro-and-in-silico-characterization-of-metagenomic-soil-derived-cellulases-capable-of-hydrolyzing-oil-palm-empty-fruit-bunch
#17
Laura Marcela Palma Medina, Diana Catalina Ardila, María Mercedes Zambrano, Silvia Restrepo, Andrés Fernando González Barrios
Diversification of raw material for biofuel production is of interest to both academia and industry. One attractive substrate is a renewable lignocellulosic material such as oil palm (Elaeis guineensis Jacq.) empty fruit bunch (OPEFB), which is a byproduct of the palm oil industry. This study aimed to characterize cellulases active against this substrate. Cellulases with activity against OPEFB were identified from a metagenomic library obtained from DNA extracted from a high-Andean forest ecosystem. Our findings show that the highest cellulolytic activities were obtained at pH and temperature ranges of 4-10 and 30 °C-60 °C, respectively...
September 2017: Biotechnology Reports
https://www.readbyqxmd.com/read/28698982/targeting-the-reactive-intermediate-in-polysaccharide-monooxygenases
#18
Erik D Hedegård, Ulf Ryde
Lytic polysaccharide monooxygenases (LPMOs) are copper metalloenzymes that can enhance polysaccharide depolymerization through an oxidative mechanism, making them interesting for the production of biofuel from cellulose. However, the details of this activation are unknown; in particular, the nature of the intermediate that attacks the glycoside C-H bond in the polysaccharide is not known, and a number of different species have been suggested. The homolytic bond-dissociation energy (BDE) has often been used as a descriptor for the bond-activation power, especially for inorganic model complexes...
July 11, 2017: Journal of Biological Inorganic Chemistry: JBIC
https://www.readbyqxmd.com/read/28695652/production-of-functionalized-oligo-isoprenoids-by-enzymatic-cleavage-of-rubber
#19
Wolf Röther, Jakob Birke, Stephanie Grond, Jose Manuel Beltran, Dieter Jendrossek
In this study, we show the proof of concept for the production of defined oligo-isoprenoids with terminal functional groups that can be used as starting materials for various purposes including the synthesis of isoprenoid-based plastics. To this end, we used three types of rubber oxygenases for the enzymatic cleavage of rubber [poly(cis-1,4-isoprene)]. Two enzymes, rubber oxygenase RoxAXsp and rubber oxygenase RoxBXsp , originate from Xanthomonas sp. 35Y; the third rubber oxygenase, latex-clearing protein (LcpK30 ), is derived from Gram-positive rubber degraders such as Streptomyces sp...
July 11, 2017: Microbial Biotechnology
https://www.readbyqxmd.com/read/28694846/synthetic-co2-fixation-enzyme-cascades-immobilized-on-self-assembled-nanostructures-that-enhance-co2-o2-selectivity-of-rubisco
#20
Sriram Satagopan, Yuan Sun, Jon R Parquette, F Robert Tabita
BACKGROUND: With increasing concerns over global warming and depletion of fossil-fuel reserves, it is attractive to develop innovative strategies to assimilate CO2, a greenhouse gas, into usable organic carbon. Cell-free systems can be designed to operate as catalytic platforms with enzymes that offer exceptional selectivity and efficiency, without the need to support ancillary reactions of metabolic pathways operating in intact cells. Such systems are yet to be exploited for applications involving CO2 utilization and subsequent conversion to valuable products, including biofuels...
2017: Biotechnology for Biofuels
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