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https://www.readbyqxmd.com/read/28637163/the-impacts-of-biomass-properties-on-pyrolysis-yields-economic-and-environmental-performance-of-the-pyrolysis-bioenergy-biochar-platform-to-carbon-negative-energy
#1
Wenqin Li, Qi Dang, Robert C Brown, David Laird, Mark M Wright
This study evaluated the impact of biomass properties on the pyrolysis product yields, economic and environmental performance for the pyrolysis-biochar-bioenergy platform. We developed and applied a fast pyrolysis, feedstock-sensitive, regression-based chemical process model to 346 different feedstocks, which were grouped into five types: woody, stalk/cob/ear, grass/plant, organic residue/product and husk/shell/pit. The results show that biomass ash content of 0.3-7.7wt% increases biochar yield from 0.13 to 0...
June 11, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28628978/a-high-throughput-dye-reducing-photometric-assay-for-evaluating-microbial-exoelectrogenic-ability
#2
Xiang Xiao, Qiu-Yue Liu, Ting-Ting Li, Feng Zhang, Wen-Wei Li, Xiang-Tong Zhou, Mei-Ying Xu, Qian Li, Han-Qing Yu
Exoelectrogenic bacteria (EEB) can transfer electrons to extracellular electron acceptors and have wide applications in environmental bioremediation and bioenergy generation. Thus, methods for effectively probing the exoelectrogenic ability of EEB are highly desirable. In this work, a simple but efficient photometric assay based on the extracellular reduction of high polar dyes was developed to evaluate the microbial exoelectrogenic ability. Methyl orange were proven to be used as a probe for evaluating the exoelectrogenic ability of EEB...
June 7, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28625564/crispr-system-in-filamentous-fungi-current-achievements-and-future-directions
#3
REVIEW
Huaxiang Deng, Ruijie Gao, Xiangru Liao, Yujie Cai
As eukaryotes, filamentous fungi share many features with humans, and they produce numerous active metabolites, some of which are toxic. Traditional genetic approaches are generally inefficient, but the clustered regularly interspaced short palindromic repeats (CRISPR)/Cas9 system that has been widely used for basic research on bacteria, mammals and plants offers a simple, fast, versatile technology for systemic research on filamentous fungi. In this review, we summarized the current knowledge on Cas9 and its variants, different ways used to detect off-target, and different approaches used to express and transform the CRISPR complex...
June 15, 2017: Gene
https://www.readbyqxmd.com/read/28611745/the-hybrid-strategy-of-thermoactinospora-rubra-yim-77501-t-for-utilizing-cellulose-as-a-carbon-source-at-different-temperatures
#4
Yi-Rui Yin, Zhao-Hui Meng, Qing-Wen Hu, Zhao Jiang, Wen-Dong Xian, Lin-Hua Li, Wei Hu, Feng Zhang, En-Min Zhou, Xiao-Yang Zhi, Wen-Jun Li
Thermoactinospora rubra YIM 77501(T) is an aerobic, Gram-positive, spore-forming and cellulose degrading thermophilic actinomycete isolated from a sandy soil sample of a volcano. Its growth temperature range is 28-60°C. The genomic sequence of this strain revealed that there are 27 cellulase genes belonging to six glycoside hydrolase families. To understand the strategy that this strain uses to utilize carbon sources such as cellulose at different temperatures, comparative transcriptomics analysis of T. rubra YIM 77501(T) was performed by growing it with cellulose (CMC) and without cellulose (replaced with glucose) at 30, 40, and 50°C, respectively...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28603556/could-miscanthus-replace-maize-as-the-preferred-substrate-for-anaerobic-digestion-in-the-united-kingdom-future-breeding-strategies
#5
Sarah J Purdy, Anne L Maddison, Christopher P Nunn, Ana Winters, Emma Timms-Taravella, Charlotte M Jones, John C Clifton-Brown, Iain S Donnison, Joe A Gallagher
Fodder maize is the most commonly used crop for biogas production owing to its high yields, high concentrations of starch and good digestibility. However, environmental concerns and possible future conflict with land for food production may limit its long-term use. The bioenergy grass, Miscanthus, is a high-yielding perennial that can grow on marginal land and, with 'greener' environmental credentials, may offer an alternative. To compete with maize, the concentration of non-structural carbohydrates (NSC) and digestibility may need to be improved...
June 2017: Global Change Biology. Bioenergy
https://www.readbyqxmd.com/read/28600834/engineering-crop-nutrient-efficiency-for-sustainable-agriculture
#6
REVIEW
Liyu Chen, Hong Liao
Increasing crop yields can provide food, animal feed, bioenergy feedstocks, and biomaterials to meet increasing global demand; however, the methods used to increase yield can negatively affect sustainability. For example, application of excess fertilizer can generate and maintain high yields but also increases input costs and contributes to environmental damage through eutrophication, soil acidification, and air pollution. Improving crop nutrient efficiency can improve agricultural sustainability by increasing yield while decreasing input costs and harmful environmental effects...
June 10, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/28596580/flower-induction-microscope-aided-cross-pollination-and-seed-production-in-the-duckweed-lemna-gibba-with-discovery-of-a-male-sterile-clone
#7
Lili Fu, Meng Huang, Bingying Han, Xuepiao Sun, K Sowjanya Sree, Klaus-J Appenroth, Jiaming Zhang
Duckweed species have a great potential to develop into fast-growing crops for water remediation and bioenergy production. Seed production and utilization of hybrid vigour are essential steps in this process. However, even in the extensively-studied duckweed species, Lemna gibba, flower primordia were often aborted prior to maturation. Salicylic acid (SA) and agar solidification of the medium promoted flower maturation and resulted in high flowering rates in L. gibba 7741 and 5504. Artificial cross-pollination between individuals of L...
June 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28596552/genome-wide-survey-of-switchgrass-nacs-family-provides-new-insights-into-motif-and-structure-arrangements-and-reveals-stress-related-and-tissue-specific-nacs
#8
Haidong Yan, Ailing Zhang, Yuntian Ye, Bin Xu, Jing Chen, Xiaoyan He, Chengran Wang, Sifan Zhou, Xinquan Zhang, Yan Peng, Xiao Ma, Yanhong Yan, Linkai Huang
NAC proteins comprise of a plant-specific transcription factor (TF) family and play important roles in plant development and stress responses. Switchgrass (Panicum virgatum) is the prime candidate and model bioenergy grass across the world. Excavating agronomically valuable genes is important for switchgrass molecular breeding. In this study, a total of 251 switchgrass NAC (PvNACs) family genes clustered into 19 subgroups were analyzed, and those potentially involved in stress response or tissue-specific expression patterns were pinpointed...
June 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28595271/oviposition-preference-and-survival-of-the-mexican-rice-borer-lepidoptera-crambidae-in-bioenergy-and-conventional-sugarcane-and-sorghum
#9
M T VanWeelden, B E Wilson, J M Beuzelin, T E Reagan, M O Way
Oviposition preference and host suitability of the Mexican rice borer, Eoreuma loftini (Dyar) (Lepidoptera: Crambidae), on bioenergy and conventional cultivars of sugarcane, Saccharum spp., and sorghum, Sorghum spp., were examined in a series of greenhouse experiments. Two energycane cultivars, two sugarcane cultivars, two high-biomass sorghum cultivars, and one sweet sorghum cultivar were assessed at two phenological stages (immature and mature). Mature plants possessed greater availability of dry leaf material compared with immature plants, and all E...
June 8, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28594846/sbcomt-bmr12-is-involved-in-the-biosynthesis-of-tricin-lignin-in-sorghum
#10
Aymerick Eudes, Tanmoy Dutta, Kai Deng, Nicolas Jacquet, Anagh Sinha, Veronica T Benites, Edward E K Baidoo, Aurore Richel, Scott E Sattler, Trent R Northen, Seema Singh, Blake A Simmons, Dominique Loqué
Lignin in plant biomass represents a target for engineering strategies towards the development of a sustainable bioeconomy. In addition to the conventional lignin monomers, namely p-coumaryl, coniferyl and sinapyl alcohols, tricin has been shown to be part of the native lignin polymer in certain monocot species. Because tricin is considered to initiate the polymerization of lignin chains, elucidating its biosynthesis and mechanism of export to the cell wall constitute novel challenges for the engineering of bioenergy crops...
2017: PloS One
https://www.readbyqxmd.com/read/28581636/influence-of-endophytic-root-bacteria-on-the-growth-cadmium-tolerance-and-uptake-of-switchgrass-panicum-virgatum-l
#11
Samreen Afzal, Nahmina Begum, Huihui Zhao, Zhigang Fang, Laiqing Lou, Qingsheng Cai
AIMS: This study aimed to evaluate the effect of five cadmium-tolerant endophytic plant growth-promoting bacteria (PGPB) strains on the biomass and cadmium tolerance and accumulation of the bioenergy plant switchgrass (Panicum virgatum L.) under cadmium (Cd)-contaminated conditions. METHODS AND RESULTS: Five bacterial strains (Bj05, Le14, Ps14, So02, and Bo03) that could tolerate up to 2000 μmol l(-1) CdCl2 with a high Cd-binding capacity were isolated from plants grown in Cd-contaminated soil...
June 5, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28580013/a-comparative-study-of-anaerobic-fixed-film-baffled-reactor-and-up-flow-anaerobic-fixed-film-fixed-bed-reactor-for-biological-removal-of-diethyl-phthalate-from-wastewater-a-performance-kinetic-biogas-and-metabolic-pathway-study
#12
Samira Yousefzadeh, Ehsan Ahmadi, Mitra Gholami, Hamid Reza Ghaffari, Ali Azari, Mohsen Ansari, Mohammad Miri, Kiomars Sharafi, Soheila Rezaei
BACKGROUND: Phthalic acid esters, including diethyl phthalate (DEP), which are considered as top-priority and hazardous pollutants, have received significant attention over the last decades. It is vital for industries to select the best treatment technology, especially when the DEP concentration in wastewater is high. Meanwhile, anaerobic biofilm-based reactors are considered as a promising option. Therefore, in the present study, for the biological removal of DEP from synthetic wastewater, two different anaerobic biofilm-based reactors, including anaerobic fixed film baffled reactor (AnFFBR) and up-flow anaerobic fixed film fixed bed reactor (UAnFFFBR), were compared from kinetic and performance standpoints...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28578277/synergistic-enzymatic-saccharification-and-fermentation-of-agar-for-biohydrogen-production
#13
Yi-Rui Wu, Mingming Zhang, Mingqi Zhong, Zhong Hu
Nowadays, marine biomass is gradually considered as another utilizable material for the sustainable bioenergy development. In the present study, galactose, the main component of agar polysaccharide, was utilized for the biohydrogen production by Enterobacter sp. CN1. The highest hydrogen yield of 303.2mL/g was obtained in the cultivation media containing 5.87g/L of galactose, together with initial pH of 7.3 and incubation temperature of 36°C, after the response surface methodology (RSM) analysis. After the saccharification process by the agarase (AgaXa) and neoagarobiose hydrolase (NH852), the agar hydrolysate obtained was further applied to generate biohydrogen by strain CN1...
May 20, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28576713/adaptation-of-continuous-biogas-reactors-operating-under-wet-fermentation-conditions-to-dry-conditions-with-corn-stover-as-substrate
#14
Balázs Kakuk, Kornél L Kovács, Márk Szuhaj, Gábor Rákhely, Zoltán Bagi
Corn stover (CS) is the agricultural by-product of maize cultivation. Due to its high abundance and high energy content it is a promising substrate for the bioenergy sector. However, it is currently neglected in industrial scale biogas plants, because of its slow decomposition and hydrophobic character. To assess the maximum biomethane potential of CS, long-term batch fermentations were carried out with various substrate concentrations and particle sizes for 72 days. In separate experiments we adapted the biogas producing microbial community in wet fermentation arrangement first to the lignocellulosic substrate, in Continuous Stirred Tank Reactor (CSTR), then subsequently, by continuously elevating the feed-in concentration, to dry conditions in solid state fermenters (SS-AD)...
May 30, 2017: Anaerobe
https://www.readbyqxmd.com/read/28575836/supporting-local-farming-communities-and-crop-production-resilience-to-climate-change-through-giant-reed-arundo-donax-l-cultivation-an-italian-case-study
#15
A Bonfante, A Impagliazzo, N Fiorentino, G Langella, M Mori, M Fagnano
Bioenergy crops are well known for their ability to reduce greenhouse gas emissions and increase the soil carbon stock. Although such crops are often held to be in competition with food crops and thus raise the question of current and future food security, at the same time mitigation measures are required to tackle climate change and sustain local farming communities and crop production. However, in some cases the actions envisaged for specific pedo-climatic conditions are not always economically sustainable by farmers...
May 30, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28572841/de-novo-assembly-functional-annotation-and-analysis-of-the-giant-reed-arundo-donax-l-leaf-transcriptome-provide-tools-for-the-development-of-a-biofuel-feedstock
#16
Chiara Evangelistella, Alessio Valentini, Riccardo Ludovisi, Andrea Firrincieli, Francesco Fabbrini, Simone Scalabrin, Federica Cattonaro, Michele Morgante, Giuseppe Scarascia Mugnozza, Joost J B Keurentjes, Antoine Harfouche
BACKGROUND: Arundo donax has attracted renewed interest as a potential candidate energy crop for use in biomass-to-liquid fuel conversion processes and biorefineries. This is due to its high productivity, adaptability to marginal land conditions, and suitability for biofuel and biomaterial production. Despite its importance, the genomic resources currently available for supporting the improvement of this species are still limited. RESULTS: We used RNA sequencing (RNA-Seq) to de novo assemble and characterize the A...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28561763/the-impact-of-diet-protein-and-carbohydrate-on-select-life-history-traits-of-the-black-soldier-fly-hermetia-illucens-l-diptera-stratiomyidae
#17
Jonathan A Cammack, Jeffery K Tomberlin
This study examined the impact of diet protein and carbohydrate percentages as well as moisture on the immature development, survivorship, and resulting adult longevity and egg production of the black soldier fly, Hermetiaillucens (L.) (Diptera: Stratiomyidae). Moisture impacted development and corresponding life-history traits more than protein:carbohydrate content; larvae were unable to develop on diets at 40% moisture. Larvae fed diets at 70% moisture developed faster, grew larger, and required less food than those reared on diets at 55% moisture...
May 31, 2017: Insects
https://www.readbyqxmd.com/read/28557997/how-genetic-variation-is-affected-by-geographic-environments-and-ploidy-level-in-erianthus-arundinaceus
#18
Jianbo Zhang, Jiajun Yan, Xiaoyun Shen, Dan Chang, Shiqie Bai, Yu Zhang, Jin Zhang
Erianthus arundinaceus is not only a candidate plant for sugarcane breeding programs, but also a potential bioenergy grass. Genetic variation that is affected by geographic environments and ploidy level is very important for the utilization of Erianthus arundinaceus. In this study, effects of geographic environments and ploidy level on genetic variation were studied through analyzing the genetic diversity, genetic similarity and cluster analysis of 46 E. arundinaceus materials from natural habitats in China by using 7 ISSRs and 15 SSRs...
2017: PloS One
https://www.readbyqxmd.com/read/28552816/spanish-strategy-on-bioeconomy-towards-a-knowledge-based-sustainable-innovation
#19
REVIEW
Manuel Lainez, José Manuel González, Alfredo Aguilar, Carmen Vela
Spain launched its own strategy on bioeconomy in January 2016 aiming at boosting a bioeconomy based on the sustainable and efficient production and use of biological resources. It highlights global societal challenges related with agricultural and biotechnological sciences in Spain and the great dynamism of the private sectors involved, particularly the agri-food, biotech and biomass sectors. The targeted sectors are food, agriculture and forestry, conditioned by water availability. It also includes the production of those industrial bioproducts and bioenergy obtained from the use and valorisation of wastes and residues and other non-conventional sources of biomass, in a circular economy...
May 25, 2017: New Biotechnology
https://www.readbyqxmd.com/read/28551810/mitochondria-targeted-antioxidants-for-the-treatment-of-cardiovascular-disorders
#20
Hyoung Kyu Kim, Jin Han
The heart continuously supplies blood to the entire body throughout the lifetime, requiring a huge amount of the bioenergy molecule adenosine triphosphate (ATP). As the major subcellular organs that produce ATP through oxidative phosphorylation and the citrate-synthesis cycle, mitochondria inevitably produce chemically reactive species as byproducts. Those species are known to be major effectors of mitochondrial dysfunction, many of which are involved in various cardiovascular diseases, causing apoptotic/necrotic loss of cardiac myocytes and/or defects in the energy balance within the myocardium...
2017: Advances in Experimental Medicine and Biology
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