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https://www.readbyqxmd.com/read/28549306/pretreatment-of-corn-stover-by-solid-acid-for-d-lactic-acid-fermentation
#1
Xiqing Wang, Gang Wang, Xiaoxiao Yu, Huan Chen, Yang Sun, Guang Chen
Solid acid is a new acid that is safe and green, which has been widely used in the fields of acid pickling. In this study, we adopted solid acid to pretreat corn stover and used the pretreated corn stover in the fermentation of d-lactic acid. Finally, we obtained optimal conditions for the pretreatment of corn stover by solid acid: digestion temperature of 120°C, digestion time of 80min, and solid acid concentration of 1.5%. Then adding cellulase of 30FPU/g, the conversion rate of glucose reached 71.06% after enzymatic hydrolysis for 72h...
April 27, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28549205/genetic-divergence-among-corn-hybrids-and-combining-ability-for-agronomic-and-bromatological-traits-of-silage
#2
E Gralak, M V Faria, A S T Figueiredo, D A Rizzardi, M Neumann, M C Mendes, C A Scapim, S Galbeiro
We assessed the impact of genetic divergence and the ability to combine corn hybrids used for the production of silage on the agronomic and bromatological traits of silage quality. We evaluated 18 corn hybrids used as genitors in a circulant diallel scheme in which each genitor hybrid participated in 9 hybrid combinations, and evaluated 100 treatments [18 genitor hybrids, 81 diallelic hybrids, and a commercial check hybrid (DKB330)] in a triple lattice 10 x 10 experimental design in two environments in Brazil...
May 25, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28548086/corrigendum-1000-genomes-based-meta-analysis-identifies-10-novel-loci-for-kidney-function
#3
Mathias Gorski, Peter J van der Most, Alexander Teumer, Audrey Y Chu, Man Li, Vladan Mijatovic, Ilja M Nolte, Massimiliano Cocca, Daniel Taliun, Felicia Gomez, Yong Li, Bamidele Tayo, Adrienne Tin, Mary F Feitosa, Thor Aspelund, John Attia, Reiner Biffar, Murielle Bochud, Eric Boerwinkle, Ingrid Borecki, Erwin P Bottinger, Ming-Huei Chen, Vincent Chouraki, Marina Ciullo, Josef Coresh, Marilyn C Cornelis, Gary C Curhan, Adamo Pio d' Adamo, Abbas Dehghan, Laura Dengler, Jingzhong Ding, Gudny Eiriksdottir, Karlhans Endlich, Stefan Enroth, Tõnu Esko, Oscar H Franco, Paolo Gasparini, Christian Gieger, Giorgia Girotto, Omri Gottesman, Vilmundur Gudnason, Ulf Gyllensten, Stephen J Hancock, Tamara B Harris, Catherine Helmer, Simon Höllerer, Edith Hofer, Albert Hofman, Elizabeth G Holliday, Georg Homuth, Frank B Hu, Cornelia Huth, Nina Hutri-Kähönen, Shih-Jen Hwang, Medea Imboden, Åsa Johansson, Mika Kähönen, Wolfgang König, Holly Kramer, Bernhard K Krämer, Ashish Kumar, Zoltan Kutalik, Jean-Charles Lambert, Lenore J Launer, Terho Lehtimäki, Martin H de Borst, Gerjan Navis, Morris Swertz, Yongmei Liu, Kurt Lohman, Ruth J F Loos, Yingchang Lu, Leo-Pekka Lyytikäinen, Mark A McEvoy, Christa Meisinger, Thomas Meitinger, Andres Metspalu, Marie Metzger, Evelin Mihailov, Paul Mitchell, Matthias Nauck, Albertine J Oldehinkel, Matthias Olden, Brenda Wjh Penninx, Giorgio Pistis, Peter P Pramstaller, Nicole Probst-Hensch, Olli T Raitakari, Rainer Rettig, Paul M Ridker, Fernando Rivadeneira, Antonietta Robino, Sylvia E Rosas, Douglas Ruderfer, Daniela Ruggiero, Yasaman Saba, Cinzia Sala, Helena Schmidt, Reinhold Schmidt, Rodney J Scott, Sanaz Sedaghat, Albert V Smith, Rossella Sorice, Benedicte Stengel, Sylvia Stracke, Konstantin Strauch, Daniela Toniolo, Andre G Uitterlinden, Sheila Ulivi, Jorma S Viikari, Uwe Völker, Peter Vollenweider, Henry Völzke, Dragana Vuckovic, Melanie Waldenberger, Jie Jin Wang, Qiong Yang, Daniel I Chasman, Gerard Tromp, Harold Snieder, Iris M Heid, Caroline S Fox, Anna Köttgen, Cristian Pattaro, Carsten A Böger, Christian Fuchsberger
This corrects the article DOI: 10.1038/srep45040.
May 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28545967/preparation-and-characterization-of-non-crystalline-granular-starch-and-corresponding-carboxymethyl-starch
#4
Bao Zhang, Xiaomin Li, Qiutao Xie, Han Tao, Wu Wang, Han-Qing Chen
Native corn starch slurried in 50% ethanol solution was treated at 60°C, 70°C, 80°C, and 85°C, respectively. The resultant starches were investigated by polarized microscopy, scanning electron microscopy (SEM), differential scanning calorimetry (DSC), and X-ray diffractometry (XRD). The Maltese cross of ethanol-heating treated starch gradually weaken with increasing temperature and completely disappeared at 85°C. SEM data indicated the treated granular exhibited a rougher surface with more pores and grooves than native starch granular, but the shape of the treated starch was still intact...
May 22, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28544760/a-novel-pattern-of-yolk-processing-in-developing-snake-eggs-colubridae-lampropeltini-and-its-functional-and-evolutionary-implications
#5
Kathryn G Powers, Daniel G Blackburn
Early amniotic vertebrates evolved large-yolked eggs that permitted production of well-developed, terrestrial hatchlings. This reproductive pattern required new mechanisms for cellularizing the yolk and mobilizing it for embryonic use. In birds, cells that line the yolk sac cavity phagocytose and digest the yolk material, a pattern that is commonly assumed to be universal among oviparous amniotes. However, recent evidence challenges the assumption that all squamate reptiles conform to the avian developmental pattern...
May 24, 2017: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/28544434/strain-stiffening-hydrogels-through-self-assembly-and-covalent-fixation-of-semi-flexible-fibers
#6
Rint P Sijbesma, Marcos Fernandez-Castano Romera, Clément Guibert, Ilja K Voets, Cornelis Storm
Biomimetic, strain-stiffening materials are reported, made through self-assembly and covalent fixation of small building blocks to form fibrous hydrogels able to stiffen by an order of magnitude in response to applied stress. The gels consist of semi-flexible rodlike micelles of bisurea bolaamphiphiles with oligo(ethylene oxide) (EO) outer blocks and a polydiacetylene (PDA) backbone. The micelles are fibers composed of 9-10 ribbons. A gelation method based on Cu-catalyzed azide-alkyne cycloaddition (CuAAC) was developed that leads to strain-stiffening hydrogels with unusual yet universal linear and nonlinear stress-strain response...
May 24, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28543430/planet-an-ellipse-fitting-approach-for-simultaneous-t1-and-t2-mapping-using-phase-cycled-balanced-steady-state-free-precession
#7
Yulia Shcherbakova, Cornelis A T van den Berg, Chrit T W Moonen, Lambertus W Bartels
PURPOSE: To demonstrate the feasibility of a novel, ellipse fitting approach, named PLANET, for simultaneous estimation of relaxation times T1 and T2 from a single 3D phase-cycled balanced steady-state free precession (bSSFP) sequence. METHODS: A method is presented in which the elliptical signal model is used to describe the phase-cycled bSSFP steady-state signal. The fitting of the model to the acquired data is reformulated into a linear convex problem, which is solved directly by a linear least squares method, specific to ellipses...
May 22, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28542235/environmental-persistence-of-porcine-coronaviruses-in-feed-and-feed-ingredients
#8
Michaela P Trudeau, Harsha Verma, Fernando Sampedro, Pedro E Urriola, Gerald C Shurson, Sagar M Goyal
Porcine Epidemic Diarrhea Virus (PEDV), Porcine Delta Corona Virus (PDCoV), and Transmissible Gastroenteritis Virus (TGEV) are major threats to swine health and contaminated feed plays a role in virus transmission. The objective of our study was to characterize inactivation of PEDV, PDCoV, and TGEV in various feed ingredient matrices. Samples of complete feed, spray dried porcine plasma, meat meal, meat and bone meal, blood meal, corn, soybean meal, and corn dried distillers grains with solubles were weighed (5 g/sample) into scintillation vials and inoculated with 1 mL of PEDV, PDCoV, or TGEV...
2017: PloS One
https://www.readbyqxmd.com/read/28539646/colonic-infusions-of-short-chain-fatty-acid-mixtures-promote-energy-metabolism-in-overweight-obese-men-a-randomized-crossover-trial
#9
Emanuel E Canfora, Christina M van der Beek, Johan W E Jocken, Gijs H Goossens, Jens J Holst, Steven W M Olde Damink, Kaatje Lenaerts, Cornelis H C Dejong, Ellen E Blaak
Short-chain fatty acids (SCFA), formed by microbial fermentation, are believed to be involved in the aetiology of obesity and diabetes. This study investigated the effects of colonic administration of physiologically relevant SCFA mixtures on human substrate and energy metabolism. In this randomized, double-blind, crossover study, twelve normoglycaemic men (BMI 25-35 kg/m(2)) underwent four investigational days, during which SCFA mixtures (200 mmol/L) high in either acetate (HA), propionate (HP), butyrate (HB) or placebo (PLA) were rectally administered during fasting and postprandial conditions (oral glucose load)...
May 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28539247/horizontal-visibility-graph-transfer-entropy-hvg-te-a-novel-metric-to-characterize-directed-connectivity-in-large-scale-brain-networks
#10
Meichen Yu, Arjan Hillebrand, Alida A Gouw, Cornelis J Stam
We propose a new measure, horizontal visibility graph transfer entropy (HVG-TE), to estimate the direction of information flow between pairs of time series. HVG-TE quantifies the transfer entropy between the degree sequences of horizontal visibility graphs derived from original time series. Twenty-one Rössler attractors unidirectionally coupled in the posterior-to-anterior direction were used to simulate 21-channel Electroencephalography (EEG) brain networks and validate the performance of the HVG-TE. We showed that the HVG-TE is robust to different levels of coupling strengths between the coupled Rössler attractors, a wide range of time delays, different sample sizes, the effects of noise and linear mixing, and the choice of reference for EEG data...
May 21, 2017: NeuroImage
https://www.readbyqxmd.com/read/28539110/novel-insights-into-the-hla-class-i-immunopeptidome-and-t-cell-immunosurveillance
#11
Cornelis J M Melief, Jan H Kessler
Advances in mass spectrometry have allowed the high-throughput quantitative identification of human leukocyte antigen (HLA) class I ligands, and recent studies have reported on the breadth and diversity of the HLA class I immunopeptidome. These findings have far-reaching implications for immunosurveillance by T cells and translational value for immunotherapy.
May 24, 2017: Genome Medicine
https://www.readbyqxmd.com/read/28536853/simultaneous-production-of-laccase-and-degradation-of-bisphenol-a-with-trametes-versicolor-cultivated-on-agricultural-wastes
#12
Shengquan Zeng, Jie Zhao, Liming Xia
Solid state fermentation with Trametes versicolor was carried out on agricultural wastes containing bisphenol A (BPA). It was found that BPA degradation was along with the occurrence of laccase production, and wheat bran and corn straw were identified as suitable mixed substrates for laccase production. In the process of BPA degradation with T. versicolor, laccase activity increased rapidly at the 6th-10th day after inoculation. Moreover, BPA can enhance the production of laccase. After 10 days of fermentation, degradation rate of BPA exceeded 90% without the usage of mediators ABTS and acetosyringone at pH 4...
May 23, 2017: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/28536841/fed-batch-hydrolysate-addition-and-cell-separation-by-settling-in-high-cell-density-lignocellulosic-ethanol-fermentations-on-afex%C3%A2-corn-stover-in-the-rapid-bioconversion-with-integrated-recycling-technology-process
#13
Cory Sarks, Mingjie Jin, Venkatesh Balan, Bruce E Dale
The Rapid Bioconversion with Integrated recycling Technology (RaBIT) process uses enzyme and yeast recycling to improve cellulosic ethanol production economics. The previous versions of the RaBIT process exhibited decreased xylose consumption using cell recycle for a variety of different micro-organisms. Process changes were tested in an attempt to eliminate the xylose consumption decrease. Three different RaBIT process changes were evaluated in this work including (1) shortening the fermentation time, (2) fed-batch hydrolysate addition, and (3) selective cell recycling using a settling method...
May 23, 2017: Journal of Industrial Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28536480/generation-and-characterization-of-acid-tolerant-fibrobacter-succinogenes-s85
#14
Chia-Wei Wu, Thomas Spike, Dawn M Klingeman, Miguel Rodriguez, Virgil R Bremer, Steven D Brown
Microorganisms are key components for plant biomass breakdown within rumen environments. Fibrobacter succinogenes have been identified as being active and dominant cellulolytic members of the rumen. In this study, F. succinogenes type strain S85 was adapted for steady state growth in continuous culture at pH 5.75 and confirmed to grow in the range of pH 5.60-5.65, which is lower than has been reported previously. Wild type and acid tolerant strains digested corn stover with equal efficiency in batch culture at low pH...
May 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28536297/androgen-receptor-inhibitor-induced-brcaness-and-parp-inhibition-are-synthetically-lethal-for-castration-resistant-prostate-cancer
#15
Likun Li, Styliani Karanika, Guang Yang, Jiangxiang Wang, Sanghee Park, Bradley M Broom, Ganiraju C Manyam, Wenhui Wu, Yong Luo, Spyridon Basourakos, Jian H Song, Gary E Gallick, Theodoros Karantanos, Dimitrios Korentzelos, Abul Kalam Azad, Jeri Kim, Paul G Corn, Ana M Aparicio, Christopher J Logothetis, Patricia Troncoso, Timothy Heffernan, Carlo Toniatti, Hyun-Sung Lee, Ju-Seog Lee, Xuemei Zuo, Wenjun Chang, Jianhua Yin, Timothy C Thompson
Cancers with loss-of-function mutations in BRCA1 or BRCA2 are deficient in the DNA damage repair pathway called homologous recombination (HR), rendering these cancers exquisitely vulnerable to poly(ADP-ribose) polymerase (PARP) inhibitors. This functional state and therapeutic sensitivity is referred to as "BRCAness" and is most commonly associated with some breast cancer types. Pharmaceutical induction of BRCAness could expand the use of PARP inhibitors to other tumor types. For example, BRCA mutations are present in only ~20% of prostate cancer patients...
May 23, 2017: Science Signaling
https://www.readbyqxmd.com/read/28535887/discrepancies-between-protocols-and-publications-of-clinical-drug-trials-results-of-an-inception-cohort-study
#16
Cornelis A van den Bogert, Patrick C Souverein, Cecile Tm Brekelmans, Susan Wj Janssen, Gerard H Koëter, Hubert Gm Leufkens, Lex M Bouter
OBJECTIVE: To identify the occurrence and determinants of protocol-publication discrepancies in clinical drug trials. STUDY DESIGN AND SETTING: All published clinical drug trials reviewed by the Dutch Institutional Review Boards in 2007 were analyzed. Discrepancies between trial protocols and publications were measured among key reporting aspects. We evaluated the association of trial characteristics with discrepancies in primary endpoints by calculating the risk ratio (RR) and 95% confidence interval (CI)...
May 20, 2017: Journal of Clinical Epidemiology
https://www.readbyqxmd.com/read/28535676/uplc-ms-it-tof-identification-of-circumdatins-produced-by-a-ochraceus
#17
Jesus Maria Gonzalez, Amparo Alfonso, M J Sainz, Mercedes R Vieytes, Luis M Botana
A method based on the combined use of ultra performance liquid chromatography coupled to mass spectrometry - ion trap - time of flight (UPLC-MS-IT-TOF) detection was employed to identify the metabolite production of Aspergillus ochraceus, which is the major cause of food and feed contamination due to ochratoxin A (OTA). Under the proposed chromatographic conditions, the separation and identification of seven metabolites belonging to the family of circumdatins was achieved. Their initial identification was performed through the exact molecular formula, as a function of their accurate mass...
May 24, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28535590/emission-of-volatile-organic-compounds-and-production-of-secondary-organic-aerosol-from-stir-frying-spices
#18
Tengyu Liu, Qianyun Liu, Zijun Li, Lei Huo, ManNin Chan, Xue Li, Zhen Zhou, Chak K Chan
Cooking is an important source of volatile organic compounds (VOCs) and a potential source of secondary organic aerosol (SOA) both indoors and outdoors. In this study, VOC emissions from heating corn oil and stir-frying spices (i.e. garlic, ginger, myrcia and zanthoxylum piperitum (Sichuan pepper)) were characterized using an on-line membrane inlet vacuum ultraviolet single-photon ionization time-of-flight mass spectrometer (VUV-SPI-TOFMS). VOC emissions from heating corn oil were dominated by aldehydes, which were enhanced by factors of one order of magnitude when stir-frying spices...
May 19, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28535309/sex-pheromone-dosages-and-release-point-densities-for-mating-disruption-of-ostrinia-furnacalis-lepidoptera-crambidae-in-ne-china-corn-fields
#19
Ri-Zhao Chen, Chung-Kuang Jow, Michael G Klein, Yu-di Jia, Da-Yu Zhang, Lan-Bing Li
Mating disruption of Ostrinia furnacalis (Guenée) (Lepidoptera: Crambidae) with its sex pheromone has not been commonly used in NE China due to a lack of information about optimal sex pheromone dosages and the density of release points required in the field. During 2014-2016, first, the two active pheromone ingredients were evaluated in the laboratory alone at ca. 2.5-5.0 mg, or in combination at 0.2-6.0 mg, to disrupt male O. furnacalis mating behaviors. Then, mating disruption areas, with radii of <8...
May 23, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/28535300/magnitude-and-allele-frequency-of-cry1f-resistance-in-field-populations-of-the-fall-armyworm-lepidoptera-noctuidae-in-brazil
#20
O F Santos-Amaya, C S Tavares, J V C Rodrigues, T C Souza, N Rodrigues-Silva, R N C Guedes, A P Alves, E J G Pereira
Bacillus thuringiensis (Bt) corn producing the Cry1F protein was the first highly efficacious Bt corn deployed against the fall armyworm Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) in Brazil, but reduced efficacy of this technology against the fall armyworm has been reported in some regions of the country. Here, we surveyed Cry1F resistance allele frequency and susceptibility of eight S. frugiperda populations collected in 2013 from non-Bt fields in different regions of Brazil. In F1 screen experiments, the overall frequency of the Cry1F resistance alleles in Brazilian populations was estimated at 0...
May 23, 2017: Journal of Economic Entomology
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