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https://www.readbyqxmd.com/read/29778800/phenotypic-and-genotypic-diversity-of-lactobacillus-buchneri-strains-isolated-from-spoiled-fermented-cucumber
#1
Katheryne V Daughtry, Suzanne D Johanningsmeier, Rosemary Sanozky-Dawes, Todd R Klaenhammer, Rodolphe Barrangou
Lactobacillus buchneri is a Gram-positive, obligate heterofermentative, facultative anaerobe commonly affiliated with spoilage of food products. Notably, L. buchneri is able to metabolize lactic acid into acetic acid and 1,2-propanediol. Although beneficial to the silage industry, this metabolic capability is detrimental to preservation of cucumbers by fermentation. The objective of this study was to characterize isolates of L. buchneri purified from both industrial and experimental fermented cucumber after the onset of secondary fermentation...
May 9, 2018: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/29775275/a-high-performance-and-recyclable-al-air-coin-cell-based-on-eco-friendly-chitosan-hydrogel-membranes
#2
Yisi Liu, Qian Sun, Xiaofei Yang, Jianneng Liang, Biqiong Wang, Alicia Koo, Ruying Li, Jie Li, Xueliang Sun
Aluminum-air batteries are a promising power supply for electronics due to its low cost and high energy density. However, portable coin-type Al-air batteries operating under ambient air condition for small electronic appliances have rarely been reported. Herein, coin cell-type Al-air batteries using cost-effective and eco-friendly chitosan hydrogel membranes modified by SiO2, SnO2, and ZnO have been prepared and assembled. The Al-air coin cell employing chitosan hydrogel membrane containing 10 wt.% SiO2 as a separator exhibits better discharge performance with a higher flat voltage plateau, longer discharge duration, and higher power density than the cells using a chitosan hydrogel membrane containing SnO2 or ZnO...
May 18, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29658617/assessment-of-salt-concentration-in-bread-commonly-consumed-in-the-eastern-mediterranean-region
#3
Ayoub Al Jawaldeh, Manal Al-Khamaiseh
Background: Hypertension is the most important cardiovascular risk factor in the World Health Organization (WHO) Eastern Mediterranean Region. Excessive salt and sodium intake is directly related to hypertension, and its reduction is a priority of WHO. Bread is the leading staple food in the Region; therefore, reducing the amount of salt added to bread could be an effective measure for reducing salt intake. Aim: The study sought to determine the levels of sodium and salt in locally produced staple bread from 8 countries in the Region...
April 5, 2018: Eastern Mediterranean Health Journal, la Revue de Santé de la Méditerranée Orientale
https://www.readbyqxmd.com/read/29553911/polychlorobiphenyl-levels-in-the-serum-of-cats-from-residential-flats-in-italy-role-of-the-indoor-environment
#4
Francesco Paolo Serpe, Filomena Fiorito, Mauro Esposito, Angelo Ferrari, Federico Fracassi, Roberto Miniero, Marco Pietra, Paola Roncada, Gianfranco Brambilla
The domestic cat (Felis catus) was used as a sentinel of exposure to polychlorobiphenyls (PCBs) in indoor urban environments y. Sera from 120 cats were pooled to form 30 different groups selected by age (<2 years; > 2 ≤ 8 years; > 8 years), sex, municipality (Bologna and Turin) and environment (indoor vs. outdoor). Test portions of 1 mL were analyzed by means of gas chromatography coupled to high-resolution mass spectrometry (GC-HRMS) for six selected indicators non-dioxin-like PCBs (∑6 PCBs: congeners #28, #52, #101, #132, #153 and #180) and the results were computed in the upper-bound mode...
March 19, 2018: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
https://www.readbyqxmd.com/read/29433246/bubbles-in-noodle-dough-characterization-by-x-ray-microtomography
#5
R-M Guillermic, F Koksel, X Sun, D W Hatcher, M T Nickerson, G S Belev, M A Webb, J H Page, M G Scanlon
Bubbles, found in a huge variety of food products, are known to afford desirable quality attributes, especially those related to texture, mouthfeel and taste. However, the presence of bubbles and their effects on wheat flour noodles is an aspect that has been, until now, largely overlooked, despite the positive and negative connotations of bubbly inclusions on Asian noodle quality. X-rays from a synchrotron source (Biomedical Imaging and Therapy facility at the Canadian Light Source) were used to rapidly and non-destructively acquire tomographic images of noodle dough...
March 2018: Food Research International
https://www.readbyqxmd.com/read/29325587/human-echinostomiasis-a-case-report
#6
Ranjit Sah, Shusila Khadka, Rabin Hamal, Sagar Poudyal
BACKGROUND: Echinostomiasis is a food-borne infection caused by an intestinal trematodes belonging to the family Echinostomatidae. They infect the gastrointestinal tract of humans. Patients are usually asymptomatic. However, with heavy infections, the worms can produce catarrhal inflammation with mild ulceration and the patient may experience abdominal pain, anorexia, nausea, vomiting, diarrhea and weight loss. Infection are associated with common sociocultural practices of eating raw or insufficiently cooked mollusks and fish...
January 11, 2018: BMC Research Notes
https://www.readbyqxmd.com/read/29243065/long-term-effects-of-grazing-and-topography-on-extra-radical-hyphae-of-arbuscular-mycorrhizal-fungi-in-semi-arid-grasslands
#7
Haiyan Ren, Weiyang Gui, Yongfei Bai, Claudia Stein, Jorge L M Rodrigues, Gail W T Wilson, Adam B Cobb, Yingjun Zhang, Gaowen Yang
Grazing and topography have drastic effects on plant communities and soil properties. These effects are thought to influence arbuscular mycorrhizal (AM) fungi. However, the simultaneous impacts of grazing pressure (sheep ha-1 ) and topography on plant and soil factors and their relationship to the production of extra-radical AM hyphae are not well understood. Our 10-year study assessed relationships between grazing, plant species richness, aboveground plant productivity, soil nutrients, edaphic properties, and AM hyphal length density (HLD) in different topographic areas (flat or sloped)...
February 2018: Mycorrhiza
https://www.readbyqxmd.com/read/29236717/burrow-characteristics-of-the-mud-shrimp-austinogebia-edulis-an-ecological-engineer-causing-sediment-modification-of-a-tidal-flat
#8
Shagnika Das, Li-Chun Tseng, Lan Wang, Jiang-Shiou Hwang
The mud shrimp Austinogebia edulis, being abundant in the intertidal zone of western Taiwan, constructs deep burrows (>1 m). This study highlights the potential of mud shrimps to modify sediment characteristics of the tidal flat by its burrowing behavior. We studied the structure of the burrow wall, compared the difference in the sediment composition of the burrow and the background sediment, and compared the organic content inside the burrow wall. This study was carried out from September 2015 to November 2016 in three areas of the western coast of Taiwan, namely Shengang, Hanbow, and Wangong...
2017: PloS One
https://www.readbyqxmd.com/read/29175759/a-membrane-bioreactor-with-iron-dosing-and-acidogenic-co-fermentation-for-enhanced-phosphorus-removal-and-recovery-in-wastewater-treatment
#9
Ruo-Hong Li, Xiao-Mao Wang, Xiao-Yan Li
A novel phosphorous (P) removal and recovery process using a membrane bioreactor (MBR) with ferric iron dosing and acidogenic co-fermentation was developed for municipal wastewater treatment. The very different solubility of Fe(III)-P and Fe(II)-P complex and the microbial transformation of Fe(III) to Fe(II) were utilized for P removal and recovery. By means of Fe-induced precipitation, chemical P removal was effectively achieved by an MBR with a flat-plate ceramic membrane; however, the Fe(III)-P solids accumulated in the MBR that constituted a significant fraction of the activated sludge...
February 1, 2018: Water Research
https://www.readbyqxmd.com/read/29163410/modeling-reveals-the-role-of-aging-and-glucose-uptake-impairment-in-l1a1-listeria-monocytogenes-biofilm-life-cycle
#10
Eva Balsa-Canto, Carlos Vilas, Alejandro López-Núñez, Maruxa Mosquera-Fernández, Romain Briandet, Marta L Cabo, Carlos Vázquez
Listeria monocytogenes is a food-borne pathogen that can persist in food processing plants by forming biofilms on abiotic surfaces. The benefits that bacteria can gain from living in a biofilm, i.e., protection from environmental factors and tolerance to biocides, have been linked to the biofilm structure. Different L. monocytogenes strains build biofilms with diverse structures, and the underlying mechanisms for that diversity are not yet fully known. This work combines quantitative image analysis, cell counts, nutrient uptake data and mathematical modeling to provide a mechanistic insight into the dynamics of the structure of biofilms formed by L...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29162758/public-health-challenges-for-the-21st-century-convergence-of-demography-economics-environment-and-biology-nalanda-distinguished-lecture
#11
K M Venkat Narayan
The rapidly changing and interdependent world under the mega-force of globalization presents unique challenges and opportunities for public health. Focusing on the example of type 2 diabetes, I argue that an appreciation for the evolution of demographic and economic contexts is essential to appropriately address today's dynamic and complex health challenges. For the vast majority of the past 2000 years, India and China were the world's largest economies until the rise of western European nations in the 18th century and later the USA...
July 2017: National Medical Journal of India
https://www.readbyqxmd.com/read/29145178/minor-hemisphere-major-syndromes
#12
Antonio Carota, Julien Bogousslavsky
A right "minor hemisphere" does not exist as the right hemisphere is dominant for awareness (nosognosia), spatial attention, emotional regulation, facial and voice expressions, visual recognition, and topographical orientation. Without the right hemisphere, the world would be flat, deprived of general and spatial attentions, pointing preferentially to the right side of the space, lacking visual experiences and emotions, exhibiting diminished awareness of the self and environment. Clinical-related syndromes of the right hemisphere are unilateral spatial neglect, object and face visual agnosia, the anosognosia for hemiparesis and/or hemianopia, misidentification syndromes, mania, and other obsessions for the food and the body...
2018: Frontiers of Neurology and Neuroscience
https://www.readbyqxmd.com/read/29119322/studies-on-the-scale-up-of-biomass-production-with-scenedesmus-spp-in-flat-plate-gas-lift-photobioreactors
#13
Anja Pia Koller, Lara Wolf, Thomas Brück, Dirk Weuster-Botz
Microalgae are flagged as next-generation biomass feedstock for sustainable chemicals and fuels, because they actively metabolize the climate gas CO2 , do not impact food production, and are not associated with land-use change. Scaling microalgae cultivation processes from lab to pilot scale is key to assessing their economic and ecologic viability. In this work, process performances of two different Scenedesmus species were studied using a 300 L flat-plate gas-lift photobioreactor system (14 m2 photosynthetically active area) equipped with a customized, broad-spectrum LED illumination system...
February 2018: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/29105723/new-horizons-in-microbiological-food-safety-photodynamic-decontamination-based-on-a-curcumin-derivative
#14
Michael Glueck, Barbara Schamberger, Peter Eckl, Kristjan Plaetzer
Outbreaks of foodborne diseases are regularly reported worldwide. In particular, uncooked plant food is considered risky in terms of microbiological safety. Food is also the most important transmission route for resistant microorganisms from animals to humans. Photodynamic Decontamination (PDc) of foodstuff was recently introduced as a novel approach for increasing microbiological food safety. We investigated the efficiency of PDc on plant food with different geometries (flat, spherical and complex) using a two-dimensional LED array as a light source (435 nm, 33...
December 6, 2017: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/29065799/fitting-tissue-chips-and-microphysiological-systems-into-the-grand-scheme-of-medicine-biology-pharmacology-and-toxicology
#15
David E Watson, Rosemarie Hunziker, John P Wikswo
Microphysiological systems (MPS), which include engineered organoids (EOs), single organ/tissue chips (TCs), and multiple organs interconnected to create miniature in vitro models of human physiological systems, are rapidly becoming effective tools for drug development and the mechanistic understanding of tissue physiology and pathophysiology. The second MPS thematic issue of Experimental Biology and Medicine comprises 15 articles by scientists and engineers from the National Institutes of Health, the IQ Consortium, the Food and Drug Administration, and Environmental Protection Agency, an MPS company, and academia...
October 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28985624/modal-analysis-and-nonlinear-characterization-of-an-airborne-power-ultrasonic-transducer-with-rectangular-plate-radiator
#16
R R Andrés, V M Acosta, M Lucas, E Riera
Some industrial processes like particle agglomeration or food dehydration among others can be enhanced by the use of power ultrasonic technologies. These technologies are based on an airborne power ultrasonic transducer (APUT) constituted by a pre-stressed Langevin-type transducer, a mechanical amplifier and an extensive plate radiator. In order to produce the desired effects in industrial processing, the transducer has to vibrate in an extensional mode driving an extensive radiator in the desired flexural mode with high amplitude displacements...
January 2018: Ultrasonics
https://www.readbyqxmd.com/read/28961002/thermodynamic-investigation-of-the-effect-of-interface-curvature-on-the-solid-liquid-equilibrium-and-eutectic-point-of-binary-mixtures
#17
Fanghui Liu, Leila Zargarzadeh, Hyun-Joong Chung, Janet A W Elliott
Thermodynamic phase behavior is affected by curved interfaces in micro- and nanoscale systems. For example, capillary freezing point depression is associated with the pressure difference between the solid and liquid phases caused by interface curvature. In this study, the thermal, mechanical, and chemical equilibrium conditions are derived for binary solid-liquid equilibrium with a curved solid-liquid interface due to confinement in a capillary. This derivation shows the equivalence of the most general forms of the Gibbs-Thomson and Ostwald-Freundlich equations...
September 29, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28931721/neuropeptidergic-integration-of-behavior-in-trichoplax-adhaerens-an-animal-without-synapses
#18
Adriano Senatore, Thomas S Reese, Carolyn L Smith
Trichoplax adhaerens is a flat, millimeter-sized marine animal that adheres to surfaces and grazes on algae. Trichoplax displays a repertoire of different feeding behaviors despite the apparent absence of a true nervous system with electrical or chemical synapses. It glides along surfaces to find food, propelled by beating cilia on cells at its ventral surface, and pauses during feeding by arresting ciliary beating. We found that when endomorphin-like peptides are applied to an animal, ciliary beating is arrested, mimicking natural feeding pauses...
September 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28772849/gallic-acid-as-an-oxygen-scavenger-in-bio-based-multilayer-packaging-films
#19
Astrid F Pant, Sven Sängerlaub, Kajetan Müller
Oxygen scavengers are used in food packaging to protect oxygen-sensitive food products. A mixture of gallic acid (GA) and sodium carbonate was used as an oxygen scavenger (OSc) in bio-based multilayer packaging films produced in a three-step process: compounding, flat film extrusion, and lamination. We investigated the film surface color as well as oxygen absorption at different relative humidities (RHs) and temperatures, and compared the oxygen absorption of OSc powder, monolayer films, and multilayer films...
May 3, 2017: Materials
https://www.readbyqxmd.com/read/28761835/evaluation-of-vitamin-d3-and-d2-stability-in-fortified-flat-bread-samples-during-dough-fermentation-baking-and-storage
#20
Mehrnaz Tabibian, Mohammadali Torbati, Mohammad Reza Afshar Mogaddam, Maryam Mirlohi, Malihe Sadeghi, Javad Mohtadinia
Purpose: Vitamin D, a fat-soluble secosteroid, has a significant role in bone metabolism and helps calcium absorption in the body. Since vitamin D concentration is altered in fortified foods and dietary supplements, the actual amount of vitamin D may differ from the label value. Methods: In this study, the concentrations of vitamin D2 and D3 of fortified bread sample were analytically determined. For this purpose, dough or homogenized bread sample was saponified using potassium hydroxide solution (30%, w/v) at 80°C, and the saponified analytes were extracted into n-heptane followed by liquid-liquid extraction...
June 2017: Advanced Pharmaceutical Bulletin
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