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https://www.readbyqxmd.com/read/28344649/overexpression-of-a-domain-of-unknown-function-266-containing-protein-results-in-high-cellulose-content-reduced-recalcitrance-and-enhanced-plant-growth-in-the-bioenergy-crop-populus
#1
Yongil Yang, Chang Geun Yoo, Hao-Bo Guo, William Rottmann, Kimberly A Winkeler, Cassandra M Collins, Lee E Gunter, Sara S Jawdy, Xiaohan Yang, Hong Guo, Yunqiao Pu, Arthur J Ragauskas, Gerald A Tuskan, Jin-Gui Chen
BACKGROUND: Domain of Unknown Function 266 (DUF266) is a plant-specific domain. DUF266-containing proteins (DUF266 proteins) have been categorized as 'not classified glycosyltransferases (GTnc)' due to amino acid similarity with GTs. However, little is known about the function of DUF266 proteins. RESULTS: Phylogenetic analysis revealed that DUF266 proteins are only present in the land plants including moss and lycophyte. We report the functional characterization of one member of DUF266 proteins in Populus, PdDUF266A...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28343863/emerging-role-of-geographical-information-system-gis-life-cycle-assessment-lca-and-spatial-lca-gis-lca-in-sustainable-bioenergy-planning
#2
REVIEW
Moonmoon Hiloidhari, D C Baruah, Anoop Singh, Sampriti Kataki, Kristina Medhi, Shilpi Kumari, T V Ramachandra, B M Jenkins, Indu Shekhar Thakur
Sustainability of a bioenergy project depends on precise assessment of biomass resource, planning of cost-effective logistics and evaluation of possible environmental implications. In this context, this paper reviews the role and applications of geo-spatial tool such as Geographical Information System (GIS) for precise agro-residue resource assessment, biomass logistic and power plant design. Further, application of Life Cycle Assessment (LCA) in understanding the potential impact of agro-residue bioenergy generation on different ecosystem services has also been reviewed and limitations associated with LCA variability and uncertainty were discussed...
March 15, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28331552/bioenergy-production-and-sustainable-development-science-base-for-policymaking-remains-limited
#3
REVIEW
Carmenza Robledo-Abad, Hans-Jörg Althaus, Göran Berndes, Simon Bolwig, Esteve Corbera, Felix Creutzig, John Garcia-Ulloa, Anna Geddes, Jay S Gregg, Helmut Haberl, Susanne Hanger, Richard J Harper, Carol Hunsberger, Rasmus K Larsen, Christian Lauk, Stefan Leitner, Johan Lilliestam, Hermann Lotze-Campen, Bart Muys, Maria Nordborg, Maria Ölund, Boris Orlowsky, Alexander Popp, Joana Portugal-Pereira, Jürgen Reinhard, Lena Scheiffle, Pete Smith
The possibility of using bioenergy as a climate change mitigation measure has sparked a discussion of whether and how bioenergy production contributes to sustainable development. We undertook a systematic review of the scientific literature to illuminate this relationship and found a limited scientific basis for policymaking. Our results indicate that knowledge on the sustainable development impacts of bioenergy production is concentrated in a few well-studied countries, focuses on environmental and economic impacts, and mostly relates to dedicated agricultural biomass plantations...
March 2017: Global Change Biology. Bioenergy
https://www.readbyqxmd.com/read/28331551/environmental-costs-and-benefits-of-growing-miscanthus-for-bioenergy-in-the-uk
#4
REVIEW
Jon P McCalmont, Astley Hastings, Niall P McNamara, Goetz M Richter, Paul Robson, Iain S Donnison, John Clifton-Brown
Planting the perennial biomass crop Miscanthus in the UK could offset 2-13 Mt oil eq. yr(-1), contributing up to 10% of current energy use. Policymakers need assurance that upscaling Miscanthus production can be performed sustainably without negatively impacting essential food production or the wider environment. This study reviews a large body of Miscanthus relevant literature into concise summary statements. Perennial Miscanthus has energy output/input ratios 10 times higher (47.3 ± 2.2) than annual crops used for energy (4...
March 2017: Global Change Biology. Bioenergy
https://www.readbyqxmd.com/read/28330329/diversity-of-bacteria-and-archaea-in-the-rhizosphere-of-bioenergy-crop-jatropha-curcas
#5
Garima Dubey, Bharati Kollah, Vijay Kumar Gour, Arvind Kumar Shukla, Santosh Ranjan Mohanty
Plant-microbial interaction in rhizosphere plays vital role in shaping plant's growth and ecosystem function. Most of the rhizospheric microbial diversity studies are restricted to bacteria. In natural ecosystem, archaea also constitutes a major component of the microbial population. However, their diversity is less known compared to bacteria. Experiments were carried out to examine diversity of bacteria and archaea in the rhizosphere of bioenergy crop Jatropha curcas (J. curcas). Samples were collected from three locations varying widely in the soil physico-chemical properties...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28324145/sustainable-development-for-whom-and-how-exploring-the-gaps-between-popular-discourses-and-ground-reality-using-the-mexican-jatropha-biodiesel-case
#6
Aparajita Banerjee, Kathleen E Halvorsen, Amarella Eastmond-Spencer, Sam R Sweitz
In the last decade, jatropha-based bioenergy projects have gotten significant attention as a solution to various social, economic, and environmental problems. Jatropha's popularity stemmed out from different discourses, some real and some perceived, in scientific and non-scientific literature. These discourses positioned jatropha as a crop helpful in producing biodiesel and protecting sustainability by reducing greenhouse gas emissions compared to fossil fuels and increasing local, rural development by creating jobs...
March 21, 2017: Environmental Management
https://www.readbyqxmd.com/read/28315058/improving-egsb-reactor-performance-for-simultaneous-bioenergy-and-organic-acid-production-from-cheese-whey-via-continuous-biological-h2-production
#7
Lucas Rodrigues Ramos, Edson Luiz Silva
OBJECTIVES: To evaluate the influence of hydraulic retention time (HRT) and cheese whey (CW) substrate concentration (15 and 25 g lactose l(-1)) on the performance of EGSB reactors (R15 and R25, respectively) for H2 production. RESULTS: A decrease in the HRT from 8 to 4 h favored the H2 yield and H2 production rate (HPR) in R15, with maximum values of 0.86 ± 0.11 mmol H2 g COD(-1) and 0.23 ± 0.024 l H2 h(-1) l(-1), respectively. H2 production in R25 was also favored at a HRT of 4 h, with maximum yield and HPR values of 0...
March 17, 2017: Biotechnology Letters
https://www.readbyqxmd.com/read/28288419/the-potential-of-native-species-as-bioenergy-crops-on-trace-element-contaminated-mediterranean-lands
#8
María T Domínguez, María M Montiel-Rozas, Paula Madejón, Manuel J Diaz, Engracia Madejón
The establishment of energy crops could be an option for the management of degraded and contaminated lands, where they would not compete with food production for land use. Here, we aimed to explore the potential of certain native Mediterranean species for the revegetation of contaminated lands for energy production purposes. A field survey was conducted in a trace-element (TE) contaminated area from SW Spain, where the patterns of biomass production, TE accumulation and the calorific value of some thistle species were analyzed along a soil contamination gradient...
March 10, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28284942/investigation-on-by-products-of-bioenergy-systems-anaerobic-digestion-and-gasification-as-potential-crop-nutrient-using-ftir-xrd-sem-analysis-and-phyto-toxicity-test
#9
Sampriti Kataki, Samarendra Hazarika, D C Baruah
Success and acceptability of the bio energy conversion technology to a large extent depend upon management of the inevitable by-products generated during the conversion process. By-products can be considered favourable as organic fertilizer as they retain nutrients with varying composition depending upon input biomass. However, characteristics of these heterogeneous resources with respect to feedstock and processing conditions have to be assessed to state on their agricultural and environmental benefits. Therefore, 3 types of anaerobic digestion by-products (digestate) from surplus biomass viz...
March 9, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28284115/bioelectrochemical-systems-using-microalgae-a-concise-research-update
#10
Rijuta Ganesh Saratale, Chandrasekar Kuppam, Ackmez Mudhoo, Ganesh Dattatraya Saratale, Sivagurunathan Periyasamy, Guangyin Zhen, László Koók, Péter Bakonyi, Nándor Nemestóthy, Gopalakrishnan Kumar
Excess consumption of energy by humans is compounded by environmental pollution, the greenhouse effect and climate change impacts. Current developments in the use of algae for bioenergy production offer several advantages. Algal biomass is hence considered a new bio-material which holds the promise to fulfil the rising demand for energy. Microalgae are used in effluents treatment, bioenergy production, high value added products synthesis and CO2 capture. This review summarizes the potential applications of algae in bioelectrochemically mediated oxidation reactions in fully biotic microbial fuel cells for power generation and removal of unwanted nutrients...
February 27, 2017: Chemosphere
https://www.readbyqxmd.com/read/28283293/linking-energy-sanitation-agriculture-intersectional-resource-management-in-smallholder-households-in-tanzania
#11
Ariane Krause, Vera Susanne Rotter
In order to create sustainable systems for resource management, residues from cooking and ecological sanitation (EcoSan) can be employed in recycling-driven soil fertility management. However, the link between energy, sanitation, and agricultural productivity is often neglected. Hence, the potential self-sufficient nature of many smallholdings in sub-Saharan Africa is underexploited. OBJECTIVE: To compare those cooking and sanitation technologies most commonly used in north-western Tanzania with locally developed alternatives, with respect to (i) resource consumption, (ii) potential to recover resources, and (iii) environmental emissions...
March 7, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28282609/high-efficient-acetate-production-from-carbon-dioxide-using-a-bioanode-microbial-electrosynthesis-system-with-bipolar-membrane
#12
Yinbo Xiang, Guangli Liu, Renduo Zhang, Yaobin Lu, Haiping Luo
The aim of this study was to develop an efficient bioanode microbial electrosynthesis system (MES) to convert carbon dioxide into acetate using bioenergy from the wastewater. The bioanode MESs were constructed using proton exchange membrane (PEM) and bipolar membrane (BPM) as separator, respectively, and operated under different voltages (i.e., 0.8, 1.0, 1.2, and 1.4V). Since BPM could dissociate H2O into H(+) and OH(-) in situ to buffer the pH change in the chambers, the BPM-MES achieved 238% improvement in cathodic acetate production rate, 45% increase in anodic substrate removal efficiency, and more than five times enhancement in current output, as compared to the PEM-MES...
February 27, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28264034/overexpression-of-the-wox-gene-stenofolia-improves-biomass-yield-and-sugar-release-in-transgenic-grasses-and-display-altered-cytokinin-homeostasis
#13
Hui Wang, Lifang Niu, Chunxiang Fu, Yingying Meng, Dajun Sang, Pengcheng Yin, Jinxia Wu, Yuhong Tang, Tiegang Lu, Zeng-Yu Wang, Million Tadege, Hao Lin
Lignocellulosic biomass can be a significant source of renewable clean energy with continued improvement in biomass yield and bioconversion strategies. In higher plants, the leaf blade is the central energy convertor where solar energy and CO2 are assimilated to make the building blocks for biomass production. Here we report that introducing the leaf blade development regulator STENOFOLIA (STF), a WOX family transcription factor, into the biofuel crop switchgrass, significantly improves both biomass yield and sugar release...
March 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28261329/soil-carbon-and-belowground-carbon-balance-of-a-short-rotation-coppice-assessments-from-three-different-approaches
#14
Gonzalo Berhongaray, Melanie S Verlinden, Laura S Broeckx, Ivan A Janssens, Reinhart Ceulemans
Uncertainty in soil carbon (C) fluxes across different land-use transitions is an issue that needs to be addressed for the further deployment of perennial bioenergy crops. A large-scale short-rotation coppice (SRC) site with poplar (Populus) and willow (Salix) was established to examine the land-use transitions of arable and pasture to bioenergy. Soil C pools, output fluxes of soil CO 2, CH 4, dissolved organic carbon (DOC) and volatile organic compounds, as well as input fluxes from litter fall and from roots, were measured over a 4-year period, along with environmental parameters...
February 2017: Global Change Biology. Bioenergy
https://www.readbyqxmd.com/read/28259052/gold-modified-indium-tin-oxide-as-a-transparent-window-in-optoelectronic-diagnostics-of-electrochemically-active-biofilms
#15
Igor Schmidt, Alaaeldin Gad, Gregor Scholz, Heidi Boht, Michael Martens, Meinhard Schilling, Hutomo Suryo Wasisto, Andreas Waag, Uwe Schröder
Microbial electrochemical technologies (METs) are one of the emerging green bioenergy domains that are utilizing microorganisms for wastewater treatment or electrosynthesis. Real-time monitoring of bioprocess during operation is a prerequisite for understanding and further improving bioenergy harvesting. Optical methods are powerful tools for this, but require transparent, highly conductive and biocompatible electrodes. Whereas indium tin oxide (ITO) is a well-known transparent conductive oxide, it is a non-ideal platform for biofilm growth...
February 24, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28258994/enhancement-of-biogas-production-from-microalgal-biomass-through-cellulolytic-bacterial-pretreatment
#16
S Kavitha, P Subbulakshmi, J Rajesh Banu, Muthukaruppan Gobi, Ick Tae Yeom
Generation of bioenergy from microalgal biomass has been a focus of interest in recent years. The recalcitrant nature of microalgal biomass owing to its high cellulose content limits methane generation. Thus, the present study investigates the effect of bacterial-based biological pretreatment on liquefaction of the microalga Chlorella vulgaris prior to anaerobic biodegradation to gain insights into energy efficient biomethanation. Liquefaction of microalgae resulted in a higher biomass stress index of about 18% in the experimental (pretreated with cellulose-secreting bacteria) vs...
February 21, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28251452/valuation-of-ecosystem-services-of-commercial-shrub-willow-salix-spp-woody-biomass-crops
#17
Alison Bressler, Philippe Vidon, Paul Hirsch, Timothy Volk
The development of shrub willow as a bioenergy feedstock contributes to renewable energy portfolios in many countries with temperate climates and marginal croplands due to excessive moisture. However, to fully understand the potential of shrub willow as an alternative crop on marginal cropland, more research is needed to understand the potential of shrub willow for providing a variety of ecosystem services. At the same time, there is much need for research developing strategies to value ecosystem services beyond conventional valuation systems (e...
April 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28218992/differently-localized-lysophosphatidic-acid-acyltransferases-crucial-for-triacylglycerol-biosynthesis-in-the-oleaginous-alga-nannochloropsis
#18
Takashi Nobusawa, Koichi Hori, Hiroshi Mori, Ken Kurokawa, Hiroyuki Ohta
Production of renewable bioenergy will be necessary to meet rising global fossil fuel demands. Members of the marine microalgae genus Nannochloropsis produce large amounts of oils (triacylglycerols; TAGs), and this genus is regarded as one of the most promising for biodiesel production. Recent genome sequencing and transcriptomic studies on Nannochloropsis have provided a foundation for understanding its oleaginous trait, but the mechanism underlying oil accumulation remains to be clarified. Here we report Nannochloropsis knockout strains of four extraplastidic lysophosphatidic acid acyltransferases (LPAT1-4), which catalyze a major de novo biosynthetic step of TAGs and membrane lipids...
February 20, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28214122/anaerobic-co-digestion-of-recalcitrant-agricultural-wastes-characterizing-of-biochemical-parameters-of-digestate-and-its-impacts-on-soil-ecosystem
#19
Adele Muscolo, Giovanna Settineri, Teresa Papalia, Emilio Attinà, Carmelo Basile, Maria Rosaria Panuccio
Anaerobic digestion (AD) of organic wastes is a promising alternative to landfilling for reducing Greenhouse Gas Emission (GHG) and it is encouraged by current regulation in Europe. Biogas-AD produced, represents a useful source of green energy, while its by-product (digestate) is a waste, that needs to be safely disposal. The sustainability of anaerobic digestion plants partly depends on the management of their digestion residues. This study has been focused on the environmental and economic benefits of co-digest recalcitrant agricultural wastes such olive wastes and citrus pulp, in combination with livestock wastes, straw and cheese whey for biogas production...
May 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28212406/accumulation-of-medium-chain-saturated-fatty-acyl-moieties-in-seed-oils-of-transgenic-camelina-sativa
#20
Zhaohui Hu, Qian Wu, Jyoti Dalal, Naresh Vasani, Harry O Lopez, Heike W Sederoff, Rongda Qu
With its high seed oil content, the mustard family plant Camelina sativa has gained attention as a potential biofuel source. As a bioenergy crop, camelina has many advantages. It grows on marginal land with low demand for water and fertilizer, has a relatively short life cycle, and is stress tolerant. As most other crop seed oils, camelina seed triacylglycerols (TAGs) consist of mostly long, unsaturated fatty acyl moieties, which is not desirable for biofuel processing. In our efforts to produce shorter, saturated chain fatty acyl moieties in camelina seed oil for conversion to jet fuel, a 12:0-acyl-carrier thioesterase gene, UcFATB1, from California bay (Umbellularia californica Nutt...
2017: PloS One
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