Read by QxMD icon Read


Beverly E Law, Tara W Hudiburg, Logan T Berner, Jeffrey J Kent, Polly C Buotte, Mark E Harmon
Strategies to mitigate carbon dioxide emissions through forestry activities have been proposed, but ecosystem process-based integration of climate change, enhanced CO2 , disturbance from fire, and management actions at regional scales are extremely limited. Here, we examine the relative merits of afforestation, reforestation, management changes, and harvest residue bioenergy use in the Pacific Northwest. This region represents some of the highest carbon density forests in the world, which can store carbon in trees for 800 y or more...
March 19, 2018: Proceedings of the National Academy of Sciences of the United States of America
Ejeong Baik, Daniel L Sanchez, Peter A Turner, Katharine J Mach, Christopher B Field, Sally M Benson
Bioenergy with carbon capture and storage (BECCS) is a negative-emissions technology that may play a crucial role in climate change mitigation. BECCS relies on the capture and sequestration of carbon dioxide (CO2 ) following bioenergy production to remove and reliably sequester atmospheric CO2 Previous BECCS deployment assessments have largely overlooked the potential lack of spatial colocation of suitable storage basins and biomass availability, in the absence of long-distance biomass and CO2 transport. These conditions could constrain the near-term technical deployment potential of BECCS due to social and economic barriers that exist for biomass and CO2 transport...
March 12, 2018: Proceedings of the National Academy of Sciences of the United States of America
Hong Sun, Yixiao Xie, Yulong Zheng, Yanli Lin, Fuyu Yang
A greenhouse experiment was carried out to investigate the effects of arbuscular mycorrhizal fungi (AMF) on the growth, P and Cd concentrations and bioenergy quality-related factors of five cultivars of switchgrass, including three lowland cultivars (Alamo (Ala), Kanlow (Kan), Performer (Per)) and two highland cultivars (Blackwell (Bw), Summer (Sum)), with 0, 1 and 10 mg/kg Cd addition levels. The results showed that AMF inoculation notably increased the biomass and P concentrations of all the cultivars. The Cd concentrations in the roots were higher than those in the shoots of all cultivars irrespective of inoculation, but the AMF had different effects on Cd accumulation in highland and lowland cultivars...
2018: PeerJ
Julian F Cacho, Mohamed A Youssef, George M Chescheir, R Wayne Skaggs, Timothy W Appelboom, Zakiya H Leggett, Eric B Sucre, Jami E Nettles, Consuelo Arellano
Managed forests in southern U.S. are a potential source of lignocellulosic biomass for biofuel production. Changes in management practices to optimize biomass production may impact the quality of waters draining to nutrient-sensitive waters in coastal plain regions. We investigated shallow groundwater quality effects of intercropping switchgrass (Panicum virgatum L.) with managed loblolly pine (Pinus taeda L.) to produce bioenergy feedstock and quality sawtimber in a poorly drained soil of eastern North Carolina, U...
March 5, 2018: Science of the Total Environment
Claude Forano, Felipe Bruna, Christine Mousty, Vanessa Prevot
This review highlights the current research on the interactions between biological cells and Layered Double Hydroxides (LDH). The as-prepared biohybrid materials appear extremely attractive in diverse fields of application relating to health care, environment and energy production. We describe how thanks to the main features of biological cells and LDH layers, various strategies of assemblies can be carried out for constructing smart biofunctional materials. The interactions between the two components are described with a peculiar attention to the adsorption, biocompatibilization, LDH layer internalization, antifouling and antimicrobial properties...
March 8, 2018: Chemical Record: An Official Publication of the Chemical Society of Japan ... [et Al.]
Jun Hai, Fengjuan Chen, Junxia Su, Fu Xu, Baodui Wang
Wood has attracted increasing scientific interest in the field of green electronics, biological devices, bioenergy and energy storage because of its abundance, low cost, biocompatibility and natural vessel structure. However, its potential application in the important area of environmental monitoring has not yet been effectively explored. In this work, gold nanoparticles (NPs) encapsulated in porous wood (denoted as Au@wood) for high-performance colorimetric detection of Hg2+ in aqueous solution has been constructed...
March 8, 2018: Analytical Chemistry
Pankajkumar R Waghmare, Anuprita D Watharkar, Byong-Hun Jeon, Sanjay P Govindwar
In this study, we have described three steps to produce ethanol from Pogonatherum crinitum , which was derived after the treatment of textile wastewater. (a) Production of biomass: biomass samples collected from a hydroponic P. crinitum phytoreactor treating dye textile effluents and augmented with Ca-alginate immobilized growth-promoting bacterium, Bacillus pumilus strain PgJ (consortium phytoreactor), and waste sorghum husks were collected and dried. Compositional analysis of biomass (consortium phytoreactor) showed that the concentration of cellulose, hemicelluloses and lignin was 42, 30 and 17%, respectively, whereas the biomass samples without the growth-promoting bacterium (normal phytoreactor) was slightly lower, 40, 29 and 16%, respectively...
March 2018: 3 Biotech
Weiwei Cai, Wenzong Liu, Zhaojing Zhang, Kai Feng, Ge Ren, Chuanliang Pu, Haishu Sun, Jiaqi Li, Ye Deng, Aijie Wang
Cathodic methanogenesis is a promising method for accelerating and stabilising bioenergy recovery in anaerobic processes. The change in composition of microbial (especially methanogenic) communities in response to an applied potential-and especially the associated pH gradient-is critical for achieving this goal, but is not well understood in cathodic biofilms. We found here that the pH-polarised region in the 2 mm surrounding the cathode ranged from 6.9 to 10.1, as determined using a pH microsensor; this substantially affected methane production rate as well as microbial community structure...
March 2, 2018: Water Research
Muhammad Imran Khan, Jin Hyuk Shin, Jong Deog Kim
Microalgae have recently attracted considerable interest worldwide, due to their extensive application potential in the renewable energy, biopharmaceutical, and nutraceutical industries. Microalgae are renewable, sustainable, and economical sources of biofuels, bioactive medicinal products, and food ingredients. Several microalgae species have been investigated for their potential as value-added products with remarkable pharmacological and biological qualities. As biofuels, they are a perfect substitute to liquid fossil fuels with respect to cost, renewability, and environmental concerns...
March 5, 2018: Microbial Cell Factories
Ramkrishna Kandel, Xiping Yang, Jian Song, Jianping Wang
Lignocellulosic biomass has become an emerging feedstock for second-generation bioethanol production. Sugarcane ( Saccharum spp. hybrids), a very efficient perennial C4 plant with a high polyploid level and complex genome, is considered a top-notch candidate for biomass production due to its salient features viz. fast growth rate and abilities for high tillering, ratooning, and photosynthesis. Energy cane, an ideal type of sugarcane, has been bred specifically as a biomass crop. In this review, we described (1) biomass potentials of sugarcane and its underlying genetics, (2) challenges associated with biomass improvement such as large and complex genome, narrow gene pool in existing commercial cultivars, long breeding cycle, and non-synchronous flowering, (3) available genetic resources such as germplasm resources, and genomic and cell wall-related databases that facilitate biomass improvement, and (4) mining candidate genes controlling biomass in genomic databases...
2018: Frontiers in Plant Science
Jeanette Whitaker, John L Field, Carl J Bernacchi, Carlos E P Cerri, Reinhart Ceulemans, Christian A Davies, Evan H DeLucia, Iain S Donnison, Jon P McCalmont, Keith Paustian, Rebecca L Rowe, Pete Smith, Patricia Thornley, Niall P McNamara
Perennial bioenergy crops have significant potential to reduce greenhouse gas (GHG) emissions and contribute to climate change mitigation by substituting for fossil fuels; yet delivering significant GHG savings will require substantial land-use change, globally. Over the last decade, research has delivered improved understanding of the environmental benefits and risks of this transition to perennial bioenergy crops, addressing concerns that the impacts of land conversion to perennial bioenergy crops could result in increased rather than decreased GHG emissions...
March 2018: Global Change Biology. Bioenergy
Bin Hu, Ann-Mareike Jarosch, Martin Gauder, Simone Graeff-Hönninger, Jörg-Peter Schnitzler, Rüdiger Grote, Heinz Rennenberg, Jürgen Kreuzwieser
Energy crops are an important renewable source for energy production in future. To ensure high yields of crops, N fertilization is a common practice. However, knowledge on environmental impacts of bioenergy plantations, particularly in systems involving trees, and the effects of N fertilization is scarce. We studied the emission of volatile organic compounds (VOC), which negatively affect the environment by contributing to tropospheric ozone and aerosols formation, from Miscanthus and willow plantations. Particularly, we aimed at quantifying the effect of N fertilization on VOC emission...
February 24, 2018: Environmental Pollution
Sergei A Filichkin, Michael Hamilton, Palitha D Dharmawardhana, Sunil K Singh, Christopher Sullivan, Asa Ben-Hur, Anireddy S N Reddy, Pankaj Jaiswal
Abiotic stresses affect plant physiology, development, growth, and alter pre-mRNA splicing. Western poplar is a model woody tree and a potential bioenergy feedstock. To investigate the extent of stress-regulated alternative splicing (AS), we conducted an in-depth survey of leaf, root, and stem xylem transcriptomes under drought, salt, or temperature stress. Analysis of approximately one billion of genome-aligned RNA-Seq reads from tissue- or stress-specific libraries revealed over fifteen millions of novel splice junctions...
2018: Frontiers in Plant Science
César Domínguez, Jónathan Heras, Eloy Mata, Vico Pascual
BACKGROUND: Fungi have diverse biotechnological applications in, among others, agriculture, bioenergy generation, or remediation of polluted soil and water. In this context, culture media based on color change in response to degradation of dyes are particularly relevant; but measuring dye decolorisation of fungal strains mainly relies on a visual and semiquantitative classification of color intensity changes. Such a classification is a subjective, time-consuming and difficult to reproduce process...
February 27, 2018: BMC Bioinformatics
D Bravo, F J Álvarez-Hornos, J M Penya-Roja, P San-Valero, C Gabaldón
A process-simulation model for a novel process consisted of an anaerobic bioscrubber was developed in Aspen Plus® . A novel approach was performed to implement the anaerobic reactor in the simulation, enabling it to be connected to the scrubber. The model was calibrated and validated using data from an industrial prototype that converted air emissions polluted with volatile organic compounds with an average daily concentration of 1129 mgC Nm-3 into bioenergy for more than one year. The scrubber, which showed a removal efficiency within 83-93%, was successfully predicted with an average absolute relative error of 5...
February 21, 2018: Journal of Environmental Management
Alice Ferreira, Paula Marques, Belina Ribeiro, Paula Assemany, Henrique Vieira de Mendonça, Ana Barata, Ana Cristina Oliveira, Alberto Reis, Helena M Pinheiro, Luisa Gouveia
The ability of microalgae to grow in nutrient-rich environments and to accumulate nutrients from wastewaters (WW) makes them attractive for the sustainable and low-cost treatment of WW. The valuable biomass produced can be further used for the generation of bioenergy, animal feed, fertilizers, and biopolymers, among others. In this study, Scenedesmus obliquus was able to remove nutrients from different wastewaters (poultry, swine and cattle breeding, brewery and dairy industries, and urban) with removal ranges of 95-100% for nitrogen, 63-99% for phosphorus and 48-70% for chemical oxygen demand...
February 20, 2018: Environmental Research
Aymerick Eudes, Roland Berthomieu, Zhangying Hao, Nanxia Zhao, Veronica Teixeira Benites, Edward E K Baidoo, Dominique Loqué
Muconic acid (MA) is a dicarboxylic acid used for the production of industrially relevant chemicals such as adipic acid, terephthalic acid, and caprolactam. Because the synthesis of these polymer precursors generates toxic intermediates by utilizing petroleum-derived chemicals and corrosive catalysts, the development of alternative strategies for the bio-based production of MA has garnered significant interest. Plants produce organic carbon skeletons by harvesting carbon dioxide and energy from the sun, and therefore represent advantageous hosts for engineered metabolic pathways towards the manufacturing of chemicals...
February 20, 2018: Metabolic Engineering
Chongran Sun, Shuangfei Zhang, Fengxue Xin, Sabarathinam Shanmugam, Yi-Rui Wu
Background: Sustainable biofuels, which are widely considered as an attractive alternative to fossil fuels, can be generated by utilizing various biomass from the environment. Marine biomass, such as red algal biomass, is regarded as one potential renewable substrate source for biofuels conversion due to its abundance of fermentable sugars (e.g., galactose). Previous studies focused on the enhancement of biofuels production from different Clostridium species; however, there has been limited investigation into their metabolic pathways, especially on the conversion of biofuels from galactose, via whole genomic comparison and evolutionary analysis...
2018: Biotechnology for Biofuels
Behzad Nozari, Safoora Mirmohamadsadeghi, Keikhosro Karimi
Besides free sugars, sweet sorghum stalks contain cellulose and hemicellulose that can be used for biofuel production. The pretreatment of stalks without the extraction of free sugars is more complicated than typical lignocelluloses, because of the degradation of free sugars during most pretreatment processes. In this study, the bioconversion of sweet sorghum stalks into biogas and bioethanol was studied using an improved organosolv pretreatment within a biorefinery framework. The organosolv pretreatment was developed using an aqueous solution of ethanol (EtOH) and isopropanol (IPOH)...
February 19, 2018: Applied Microbiology and Biotechnology
Anders Arvesen, Francesco Cherubini, Gonzalo Del Alamo Serrano, Rasmus Astrup, Michael Becidan, Helmer Belbo, Franziska Goile, Tuva Grytli, Geoffrey Guest, Carine Lausselet, Per Kristian Rørstad, Line Rydså, Morten Seljeskog, Øyvind Skreiberg, Sajith Vezhapparambu, Anders Hammer Strømman
Climate impacts of forest bioenergy result from a multitude of warming and cooling effects and vary by location and technology. While past bioenergy studies have analysed a limited number of climate-altering pollutants and activities, no studies have jointly addressed supply chain greenhouse gas emissions, biogenic CO2 fluxes, aerosols and albedo changes at high spatial and process detail. Here, we present a national-level climate impact analysis of stationary bioenergy systems in Norway based on wood-burning stoves and wood biomass-based district heating...
February 19, 2018: Scientific Reports
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"