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https://www.readbyqxmd.com/read/28221938/reduction-of-biogenic-amines-during-miso-fermentation-by-lactobacillus-plantarum-as-a-starter-culture
#1
Yi-Chen Lee, Hsien-Feng Kung, Ya-Ling Huang, Chien-Hui Wu, Yu-Ru Huang, Yung-Hsiang Tsai
Lactobacillus plantarum D-103 isolated from a miso product that possesses amine-degrading activity was used as a starter culture in miso fermentation (25°C for 120 days) in this study. The salt content in control samples (without starter culture) and inoculated samples (inoculated with L. plantarum D-103) remained constant at 10.4% of the original salt concentration throughout fermentation, whereas the pH value decreased from 6.2 to 4.6 during fermentation. The inoculated samples had significantly lower (P < 0...
September 2016: Journal of Food Protection
https://www.readbyqxmd.com/read/28221770/the-triple-salt-sr14-ta4n13-tan4-o-a-nitridotantalate-oxide-with-19-fold-rock-salt-superstructure
#2
Matthias Wörsching, Martin Daiger, Constantin Hoch
A new structure motif in nitridometalate chemistry is the tetracatena-nitridotantalate anion [Ta4N13](19-). It occurs in the crystal structure of the triple salt Sr14[Ta4N13][TaN4]O (monoclinic, space group P21/c with a = 15.062(2) Å, b = 7.2484(6) Å, c = 24.266(3) Å, and β = 97.280(10)(o)) together with ortho-tantalate and isolated oxide anions. Synthesis followed a new approach with employment of Sr surplus and reductive conditions aimed at the preparation of subvalent compounds. The new structure type was established on the basis of single-crystal X-ray diffraction data and also Rietveld refinement...
February 21, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28213035/influence-of-electro-activated-solutions-of-weak-organic-acid-salts-on-microbial-quality-and-overall-appearance-of-blueberries-during-storage
#3
Viacheslav Liato, Riadh Hammami, Mohammed Aïder
The aim of this work was to study the potential of diluted electro-activated solutions of weak organic acid salts (potassium acetate, potassium citrate and calcium lactate) to extend the shelf life of blueberries during post-harvest storage. The sanitizing capacity of these solutions was studied against pathogenic bacteria Listeria monocytogenes and E. coli O157:H7 as well as phytopathogenic fungi A. alternata, F. oxysporum and B. cinerea. The results showed that a 5-min treatment of inoculated blueberries with electro-activated solutions resulted in a 4 log CFU/g reduction in Listeria monocytogenes for all solutions...
June 2017: Food Microbiology
https://www.readbyqxmd.com/read/28213032/applicability-of-a-colorimetric-method-for-evaluation-of-lactic-acid-bacteria-with-probiotic-properties
#4
Min Young Jung, Jina Lee, Boyeon Park, Hyelyeon Hwang, Sung-Oh Sohn, Se Hee Lee, Hyeong In Lim, Hae Woong Park, Jong-Hee Lee
Rapid colorimetric methods using various indicator reagents have been developed to monitor bacterial viability. Here, we examined the applicability of a method based on the reduction of resazurin or water-soluble tetrazolium salt-8 (WST-8) to screen lactic acid bacteria (LAB) for growth, tolerance against bile acid and low pH. The resazurin reduction test proved unsuitable for screening LAB such as Lactobacillus plantarum and Leuconostoc mesenteroides since it reacted with acid present in the cultures. LAB growth could be indirectly quantified by measuring WST-8 reduction...
June 2017: Food Microbiology
https://www.readbyqxmd.com/read/28211928/facile-synthesis-of-stable-water-soluble-dendron-coated-gold-nanoparticles
#5
Alan E Enciso, Giovanni Doni, Riccardo Nifosì, Ferruccio Palazzesi, Roberto Gonzalez, Amy A Ellsworth, Jeffery L Coffer, Amy V Walker, Giovanni M Pavan, Ahmed A Mohamed, Eric E Simanek
Upon reduction with sodium borohydride, diazonium tetrachloroaurate salts of triazine dendrons yield dendron-coated gold nanoparticles connected by a gold-carbon bond. These robust nanoparticles are stable in water and toluene solutions for longer than one year and present surface groups that can be reacted to change surface chemistry and manipulate solubility. Molecular modeling was used to provide insight on the hydration of the nanoparticles and their observed solubilties.
February 17, 2017: Nanoscale
https://www.readbyqxmd.com/read/28208715/biotransformation-and-detoxification-of-xylidine-orange-dye-using-immobilized-cells-of-marine-derived-lysinibacillus-sphaericus-d3
#6
Prabha Devi, Solimabi Wahidullah, Farhan Sheikh, Rochelle Pereira, Niteen Narkhede, Divya Amonkar, Supriya Tilvi, Ram Murthy Meena
Lysinibacillus sphaericus D3 cell-immobilized beads in natural gel sodium alginate decolorized the xylidine orange dye 1-(dimethylphenylazo)-2-naphthol-6-sulfonic acid sodium salt in the laboratory. Optimal conditions were selected for decolorization and the products formed were evaluated for toxicity by disc diffusion assay against common marine bacteria which revealed the non-toxic nature of the dye-degraded products. Decolorization of the brightly colored dye to colorless products was measured on an Ultra Violet-Vis spectrophotometer and its biodegradation products monitored on Thin Layer Chromatographic plate and High Performance Liquid Chromatography (HPLC)...
February 8, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28205420/tetrabutylammonium-salts-of-aluminum-iii-and-gallium-iii-phthalocyanine-radical-anions-bonded-with-fluoren-9-olato%C3%AF-anions-and-indium-iii-bromide-phthalocyanine-radical-anions
#7
Dmitri Konarev, Salavat Khasanov, Manabu Ishikawa, Yoshiaki Nakano, Akihiro Otsuka, Hideki Yamochi, Gunzi Saito, Rimma N Lyubovskaya
Reduction of aluminum(III), gallium(III) and indium(III) chloride phthalocyanines by sodium fluorenone ketyl in the presence of tetrabutylammonium cations yielded crystalline salts (Bu4N+)2[M(III)(HFl-O-)(Pc*3-)](*-)(Br-).1.5C6H4Cl2 (M = Al (1), Ga(2), HFl-O- = Fluoren-9-olato- anion) and (Bu4N+)[In(III)Br(Pc*3-)]*-.0.875C6H4Cl2.0.125C6H14 (3). The salts contain Pc(*3-) radical anions with negatively charged phthalocyanine macrocycles evidenced by the presence of intense bands of (Pc*3-) in the NIR range and noticeable blue shift of both Q- and Soret bands of phthalocyanine...
February 15, 2017: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/28198489/negative-effects-of-divalent-mineral-cations-on-the-bioaccessibility-of-carotenoids-from-plant-food-matrices-and-related-physical-properties-of-gastro-intestinal-fluids
#8
Joana Corte-Real, Marie Bertucci, Christos Soukoulis, Charles Desmarchelier, Patrick Borel, Elke Richling, Lucien Hoffmann, Torsten Bohn
Carotenoid intake and tissue levels have been frequently associated with reduced risk of chronic diseases. However, their bioavailability is low and influenced by many dietary related parameters. Divalent mineral cations have been suggested to interfere with carotenoid digestion and to hamper micellarization, a prerequisite for their uptake, via complexation of bile salts and precipitation of fatty acids. In the present investigation, we have evaluated the effects of increasing concentrations of magnesium (0-300 mg L(-1)), calcium (0-1500 mg L(-1)), zinc (0-200 mg L(-1)), and sodium (0-1500 mg L(-1); control monovalent cation), on carotenoid bioaccessibility from frequently consumed food items rich in carotenoids (tomato juice, carrot juice, apricot nectar, spinach and field salad), following simulated gastro-intestinal digestion...
February 15, 2017: Food & Function
https://www.readbyqxmd.com/read/28197988/in-vivo-and-in-vitro-degradation-comparison-of-pure-mg-mg-10gd-and-mg-2ag-a-short-term-study
#9
I Marco, A Myrissa, E Martinelli, F Feyerabend, R Willumeit-Römer, A M Weinberg, O Van der Biest
The purpose of this study was to compare short term in vitro and in vivo biodegradation studies with low purity Mg (> 99.94 %), Mg-10Gd and Mg-2Ag designed for biodegradable implant applications. Three in vitro testing conditions were applied, using (i) phosphate buffered saline (PBS), (ii) Hank's balanced salt solution (HBSS) and (iii) Dulbecco's modified eagle medium (DMEM) in 5 % CO2 under sterile conditions. Gas evolution and mass loss (ML) were assessed, as well as the degradation layer, by elemental mapping and scanning electron microscopy (SEM)...
February 13, 2017: European Cells & Materials
https://www.readbyqxmd.com/read/28197417/basal-and-activated-calcium-sensitization-mediated-by-rhoa-rho-kinase-pathway-in-rats-with-genetic-and-salt-hypertension
#10
Michal Behuliak, Michal Bencze, Ivana Vaněčková, Jaroslav Kuneš, Josef Zicha
Calcium sensitization mediated by RhoA/Rho kinase pathway can be evaluated either in the absence (basal calcium sensitization) or in the presence of endogenous vasoconstrictor systems (activated calcium sensitization). Our aim was to compare basal and activated calcium sensitization in three forms of experimental hypertension with increased sympathetic tone and enhanced calcium entry-spontaneously hypertensive rats (SHR), heterozygous Ren-2 transgenic rats (TGR), and salt hypertensive Dahl rats. Activated calcium sensitization was determined as blood pressure reduction induced by acute administration of Rho kinase inhibitor fasudil in conscious rats with intact sympathetic nervous system (SNS) and renin-angiotensin system (RAS)...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28197413/mechanism-of-reduced-susceptibility-to-fosfomycin-in-escherichia-coli-clinical-isolates
#11
Yasuo Ohkoshi, Toyotaka Sato, Yuuki Suzuki, Soh Yamamoto, Tsukasa Shiraishi, Noriko Ogasawara, Shin-Ichi Yokota
In recent years, multidrug resistance of Escherichia coli has become a serious problem. However, resistance to fosfomycin (FOM) has been low. We screened E. coli clinical isolates with reduced susceptibility to FOM and characterized molecular mechanisms of resistance and reduced susceptibility of these strains. Ten strains showing reduced FOM susceptibility (MIC ≥ 8 μg/mL) in 211 clinical isolates were found and examined. Acquisition of genes encoding FOM-modifying enzyme genes (fos genes) and mutations in murA that underlie high resistance to FOM were not observed...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28195710/palladium-catalyzed-hydrohalogenation-of-1-6-enynes-hydrogen-halide-salts-and-alkyl-halides-as-convenient-hx-surrogates
#12
David A Petrone, Ivan Franzoni, Juntao Ye, Jose F Rodriguez, Amalia I Poblador-Bahamonde, Mark Lautens
Difficulties associated with the handling H2 and CO in metal-catalyzed processes has led to the development of chemical surrogates to these species. Despite many successful examples using this strategy, the application of convenient hydrogen halide (HX) surrogates in catalysis has lagged behind considerably. We now report the use of ammonium halides as HX surrogates to accomplish a novel Pd-catalyzed hydrohalogenation of enynes. These safe and practical salts avoid many drawbacks associated with traditional HX sources including toxicity and corrosiveness...
February 14, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28190899/physiological-responses-of-rosa-rubiginosa-to-saline-environment
#13
Tomasz Hura, Bożena Szewczyk-Taranek, Katarzyna Hura, Krzysztof Nowak, Bożena Pawłowska
The aim of this work was to analyse the response of Rosa rubiginosa to salinity induced by different concentrations of sodium chloride and calcium chloride (0, 25, 50, 100, 150 and 200 mM). Besides salt accumulation and pH changes, other parameters were investigated including photosynthetic activity, leaf water content, the dynamics of necrosis and chlorosis appearance and leaf drying. The study was complemented with microscopic analysis of changes in leaf anatomy. R. rubiginosa was more sensitive to the salinity induced by calcium chloride than by sodium chloride...
2017: Water, Air, and Soil Pollution
https://www.readbyqxmd.com/read/28190464/a-chinese-patent-medicine-salvia-miltiorrhiza-depside-salts-for-infusion-combined-with-conventional-treatment-for-patients-with-angina-pectoris-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#14
Yili Zhang, Yanming Xie, Xing Liao, Qiulei Jia, Yan Chai
BACKGROUND: Currently, many trials have been conducted to investigate the beneficial and harmful effects of Salvia miltiorrhiza depside salts for infusion for treating patients with angina pectoris. It is important to systematically and criticallyevaluate the existing literature into providing a pooled effect to examine outcomes of angina pectoris with Salvia miltiorrhiza depside salts for infusion. PURPOSE: A systematic review and meta-analysis were performed to determine the clinical curative effect and safety of Salvia miltiorrhiza depside salts for infusion for angina pectoris and provide clear evidence to inform clinical practice...
February 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28184391/facile-one-pot-synthesis-of-2-3-dihydro-1h-indolizinium-derivatives-by-rhodium-iii-catalyzed-intramolecular-oxidative-annulation-via-c-h-activation-application-to-ficuseptine-synthesis
#15
Nitinkumar Satyadev Upadhyay, Jayachandran Jayakumar, Chien-Hong Cheng
Various substituted indolizidinium, quinolizinium and pyrido[1,2-a]azepinium salts synthesized from benzaldehydes (or α,β-unsaturated aldehydes) and alkyne-amines catalyzed by rhodium complexes via C-H activation are demonstrated. The reaction was carried out under mild reaction conditions using Cu(BF4)2·6H2O as oxidant and anion source and inexpensive oxygen as a co-oxidant. A reaction mechanism involving imine formation followed by an ortho C-H activation, alkyne insertion and reductive elimination via a 7-membered rhodacycle is proposed...
February 10, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28178990/review-of-behaviour-change-interventions-to-reduce-population-salt-intake
#16
REVIEW
Kathy Trieu, Emma McMahon, Joseph Alvin Santos, Adrian Bauman, Kellie-Ann Jolly, Bruce Bolam, Jacqui Webster
BACKGROUND: Excess salt intake is a major cause of raised blood pressure-the leading risk factor for death and disability worldwide. Although behaviour change interventions such as awareness campaigns and health education programs are implemented to reduce salt intake, their effectiveness is unclear. This global systematic review investigates the impact of population-level behaviour change interventions that aim to reduce salt intake. METHODS: A search for published and grey literature was conducted using PubMed, Cochrane Library, Embase, Web of Science, Sage, Scopus, OpenGrey, Google Scholar and other relevant organizations' websites...
February 8, 2017: International Journal of Behavioral Nutrition and Physical Activity
https://www.readbyqxmd.com/read/28178788/effects-of-salt-or-cosolvent-addition-on-solubility-of-a-hydrophobic-solute-in-water-relevance-to-those-on-thermal-stability-of-a-protein
#17
Shota Murakami, Tomohiko Hayashi, Masahiro Kinoshita
The solubility of a nonpolar solute in water is changed upon addition of a salt or cosolvent. Hereafter, "solvent" is formed by water molecules for pure water, by water molecules, cations, and anions for water-salt solution, and by water and cosolvent molecules for water-cosolvent solution. Decrease and increase in the solubility, respectively, are ascribed to enhancement and reduction of the hydrophobic effect. Plenty of experimental data are available for the change in solubility of argon or methane arising from the addition...
February 7, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28177578/feasibility-of-a-supporting-salt-free-non-aqueous-redox-flow-battery-utilizing-ionic-active-materials
#18
Jarrod Milshtein, Sydney Fisher, Tanya Breault, Levi Thompson, Fikile Brushett
Non-aqueous redox flow batteries (NAqRFBs) are promising devices for grid-scale energy storage, however, high projected prices could limit commercial prospects. One price reduction route is to minimize or eliminate the expensive supporting salts typically employed in NAqRFBs. We demonstrate the feasibility of a flow cell operating in the absence of supporting salt, utilizing ionic active species. These ionic species possess high conductivities in acetonitrile (12 - 19 mS cm-1), and cycle at 20 mA cm-2 with energy efficiencies (> 75%) comparable to state-of-the-art NAqRFBs employing high concentrations of supporting salt...
February 8, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28176661/cold-shock-protein-a-from-corynebacterium-pseudotuberculosis-role-of-electrostatic-forces-in-the-stability-of-the-secondary-structure
#19
Monika A Coronado, Icaro P Caruso, Vinícius M De Oliveira, Vinícius G Contessoto, Vitor B P Leite, Raghuvir K Arni, Raphael J Eberle
The conformational stability of the Cold shock protein A (CspA) from C. pseudotuberculosis (Cp), a nucleic acid binding protein in function of pH and salt concentration was examined by using differential scanning calorimetry and CD spectroscopy in combination with computational analysis to identify the specify amino acids undergoing change. Our approach identified a sodium-binding site in CpCspA and at pH 8.0 a significant reduction in the β-sheet content was observed which resulted in a decrease of the protein thermal stability...
7, 2017: Protein and Peptide Letters
https://www.readbyqxmd.com/read/28169290/knockdown-of-a-cellulose-synthase-gene-boicesa-affects-the-leaf-anatomy-cellulose-content-and-salt-tolerance-in-broccoli
#20
Shuangtao Li, Lei Zhang, Ying Wang, Fengfeng Xu, Mengyun Liu, Peng Lin, Shuxin Ren, Rui Ma, Yang-Dong Guo
Cellulose is the major component of cell wall materials. A 300 bp specific fragment from the cDNA fragment was chosen to insert into vector pFGC1008 at forward and reverse orientations to construct the recombinant RNAi vector. Knockdown of BoiCesA caused "dwarf" phenotype with smaller leaves and a loss of the content of cellulose. Moreover, RT-PCR analysis confirmed that the expression of the RNAi apparatus could repress expression of the CesA gene. Meanwhile, examination of the leaves from the T3 of RNAi transformants indicated reduction of cell expansion in vascular bundles, particularly on their abaxial surface...
February 7, 2017: Scientific Reports
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