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https://www.readbyqxmd.com/read/29454277/nitrogen-removal-enhancement-using-lactic-acid-fermentation-products-from-food-waste-as-external-carbon-sources-performance-and-microbial-communities
#1
Jialing Tang, Xiaochang C Wang, Yisong Hu, Yunhui Pu, Jin Huang, Huu Hao Ngo, Yonggang Zeng, Yuyou Li
In this study, nitrogen removal using the lactic acid fermentation products from food waste and other external chemical carbon sources (sodium acetate, sodium lactate and starch) was investigated. Similar to sodium acetate and lactate, the lactic acid-enriched fermentation liquid from food waste (FLFW) exhibited a high denitrification rate (5.5 mg NO x -N/(g-VSS h)) and potential (0.16 g NO 3 - -N/g COD), and could achieve high NH 4 + -N and total nitrogen (TN) removal efficiencies during long-term operation...
February 8, 2018: Bioresource Technology
https://www.readbyqxmd.com/read/29454074/nutraceuticals-as-therapeutic-agents-for-atherosclerosis
#2
REVIEW
Joe W E Moss, Jessica O Williams, Dipak P Ramji
Atherosclerosis, a chronic inflammatory disorder of medium and large arteries and an underlying cause of cardiovascular disease (CVD), is responsible for a third of all global deaths. Current treatments for CVD, such as optimized statin therapy, are associated with considerable residual risk and several side effects in some patients. The outcome of research on the identification of alternative pharmaceutical agents for the treatment of CVD has been relatively disappointing with many promising leads failing at the clinical level...
February 14, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29453543/toxic-and-beneficial-potential-of-silver-nanoparticles-the-two-sides-of-the-same-coin
#3
Lilian Rodrigues Rosa Souza, Veronica Santana da Silva, Leonardo Pereira Franchi, Tiago Alves Jorge de Souza
Nanotechnology has allowed great changes in chemical, biological and physical properties of metals when compared to their bulk counterparts. Within this context, silver nanoparticles (AgNPs) play a major role due to their unique properties, being widely used in daily products such as fabrics, washing machines, water filters, food and medicine. However, AgNPs can enter cells inducing a "Trojan-horse" type mechanism which potentially leads to cellular autophagy, apoptosis or necrosis. On the other hand, this cytotoxicity mechanism can be optimized to develop drug nanocarriers and anticancer therapies...
2018: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29453267/plant-microbe-and-abiotic-factors-influencing-salmonella-survival-and-growth-on-alfalfa-sprouts-and-swiss-chard-microgreens
#4
Elizabeth Reed, Christina M Ferreira, Rebecca Bell, Eric W Brown, Jie Zheng
Microgreens, like sprouts, are relatively fast growing, and generally consumed raw. Moreover, as observed in sprouts, microbial contamination from preharvest sources could also be present in the production of microgreens. In this study, two Salmonella enterica serovars (Hartford and Cubana) applied, at multiple inoculation levels, were evaluated for survival and growth on alfalfa sprouts and Swiss chard microgreens using the most probable number (MPN) method. Various abiotic factors were also examined for their effects on Salmonella survival and growth on sprouts and microgreens...
February 16, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29453261/molecular-and-functional-study-of-a-branching-sucrase-like-glucansucrase-reveals-an-evolutionary-intermediate-between-two-subfamilies-of-the-gh70-enzymes
#5
Minghui Yan, Bing-Hua Wang, Xiaofen Xu, Peng Chang, Feng Hang, Zhengjun Wu, Chunping You, Zhenmin Liu
Family GH70 glucansucrases (GSs) catalyze the synthesis of α-glucans from sucrose, a reaction widely seen in lactic acid bacteria (LAB). These enzymes have been implicated in many aspects of the microbial life. Products of GSs have great commercial value as food supplements and medical materials, therefore these enzymes have attracted much attention from both fields of science and industry. However, certain issues concerning the origin and evolution of GS are still to be addressed, although an increasing number of GH70 enzymes have been characterized...
February 16, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29453259/common-hydraulic-fracturing-fluid-additives-alter-the-structure-and-function-of-anaerobic-microbial-communities
#6
Adam C Mumford, Denise M Akob, J Grace Klinges, Isabelle M Cozzarelli
The development of unconventional oil and gas (UOG) resources results in production of large volumes of wastewater containing a complex mixture of hydraulic fracturing chemical additives and components from the formation. Release of these wastewaters into the environment poses potential risks that are poorly understood. Microbial communities in stream sediments form the base of the food chain, and may serve as sentinels for changes in stream health. Iron reducing organisms have been shown to play a role in the biodegradation of a wide range of organic compounds, and to evaluate their response to UOG wastewater, we enriched anaerobic microbial communities from sediments collected upstream (background) and downstream (impacted) of an UOG wastewater injection disposal facility in the presence of hydraulic fracturing fluid (HFF) additives: guar gum, ethylene glycol, and two biocides, DBNPA and Bronopol...
February 16, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29453178/seasonal-dynamics-of-tetracycline-resistance-gene-transport-in-the-sumas-river-agricultural-watershed-of-british-columbia-canada
#7
Patricia L Keen, Charles W Knapp, Kenneth J Hall, David W Graham
Environmental transport of contaminants that can influence the development of antibiotic resistance in bacteria is an important concern in the management of ecological and human health risks. Agricultural regions are locales where practices linked to food crop and livestock production can introduce contaminants that could alter the selective pressures for the development of antibiotic resistance in microbiota. This is important in regions where the use of animal manure or municipal biosolids as waste and/or fertilizer could influence selection for antibiotic resistance in pathogenic bacterial species...
February 13, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29452593/a-review-on-biosynthesis-of-silver-nanoparticles-and-their-biocidal-properties
#8
REVIEW
Khwaja Salahuddin Siddiqi, Azamal Husen, Rifaqat A K Rao
Use of silver and silver salts is as old as human civilization but the fabrication of silver nanoparticles (Ag NPs) has only recently been recognized. They have been specifically used in agriculture and medicine as antibacterial, antifungal and antioxidants. It has been demonstrated that Ag NPs arrest the growth and multiplication of many bacteria such as Bacillus cereus, Staphylococcus aureus, Citrobacter koseri, Salmonella typhii, Pseudomonas aeruginosa, Escherichia coli, Klebsiella pneumonia, Vibrio parahaemolyticus and fungus Candida albicans by binding Ag/Ag + with the biomolecules present in the microbial cells...
February 16, 2018: Journal of Nanobiotechnology
https://www.readbyqxmd.com/read/29452191/recent-advances-of-medical-foods-in-china-the-opportunities-and-challenges-under-standardization
#9
Xusheng Li, Xinwei Jiang, Jianxia Sun, Cuijuan Zhu, Weibin Bai
Malnutrition with high incidence in hospitalized patients in China has brought a significant burden of disease. Although many clinical studies have demonstrated the importance of nutritional for patients with malnutrition, the application of medical foods in China is still restricted. For the classification, limits, production and registration of medical foods, the Chinese government newly enacted a series of regulations. In this review, comparing the policy, researches, and product variety of medical foods in China with other countries, although the current status of the development of medical foods in China is still far behind that of developed countries, some of regulations are stricter than those of many other countries or organizations...
February 13, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29452184/production-of-chitinase-from-escherichia-fergusonii-chitosanase-from-chryseobacterium-indologenes-comamonas-koreensis-and-its-application-in-n-acetylglucosamine-production
#10
Tae Il Kim, Dong Hyun Lim, Kwang Soo Baek, Sun Sik Jang, Beom Young Park, Vijayakumar Mayakrishnan
The important platform polysaccharide N-acetylglucosamine (GlcNAc) has great potential to be used in the fields of food, cosmetics, agricultural, pharmaceutical, medicine and biotechnology. This GlcNAc is being produced by traditional methods of environment-unfriendly chemical digestion with strong acids. Therefore, researchers have been paying more attention to enzymatic hydrolysis process for the production of GlcNAc. Hence, in this study, we isolated novel chitinase (Escherichia fergusonii) and chitosanase (Chryseobacterium indologenes, Comamonas koreensis) producing strains from Korean native calves feces, and developed the potential of an eco-friendly microbial progression for GlcNAc production from swollen chitin and chitosan by enzymatic degradation...
February 13, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29452173/energy-intake-functions-and-energy-budgets-of-ectotherms-and-endotherms-derived-from-their-ontogenetic-growth-in-body-mass-and-timing-of-sexual-maturation
#11
Jan Werner, Nikolaos Sfakianakis, Alan D Rendall, Eva Maria Griebeler
Ectothermic and endothermic vertebrates differ not only in their source of body temperature (environment vs. metabolism), but also in growth patterns, in timing of sexual maturation within life, and energy intake functions. Here, we present a mathematical model applicable to ectothermic and endothermic vertebrates. It is designed to test whether differences in the timing of sexual maturation within an animal's life (age at which sexual maturity is reached vs. longevity) together with its ontogenetic gain in body mass (growth curve) can predict the energy intake throughout the animal's life (food intake curve) and can explain differences in energy partitioning (between growth, reproduction, heat production and maintenance, with the latter subsuming any other additional task requiring energy) between ectothermic and endothermic vertebrates...
February 13, 2018: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/29451810/recent-developments-in-the-food-quality-detected-by-non-invasive-nuclear-magnetic-resonance-technology
#12
Kai Fan, Min Zhang
Nuclear magnetic resonance (NMR) is a rapid, accurate and non-invasive technology and widely used to detect the quality of food, particularly to fruits and vegetables, meat and aquatic products. This review is a survey of recent developments in experimental results for the quality of food on various NMR technologies in processing and storage over the past decade. Following a discussion of the quality discrimination and classification of food, analysis of food compositions and detection of physical, chemical, structural and microbiological properties of food are outlined...
February 16, 2018: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/29451276/tisagenlecleucel-an-approved-anti-cd19-chimeric-antigen-receptor-t-cell-therapy-for-the-treatment-of-leukemia
#13
Y Liu, X Chen, W Han, Y Zhang
On August 30, 2017, the U.S. Food and Drug Administration (FDA) approved Novartis' tisagenlecleucel (CTL-019, Kymriah), which is a synthetic bioimmune product of anti-CD19 chimeric antigen receptor (CAR) T cells, for the treatment of relapsed/refractory B-cell acute lymphoblastic leukemia (B-ALL). This was a milestone in tumor immunology on account of the significant antitumor effect of tisagenlecleucel for the treatment of relapsed/refractory B-ALL patients. Conventional standard therapies for B-ALL have high failure rates, thus developing new therapies is crucial for patients with B-ALL...
November 2017: Drugs of Today
https://www.readbyqxmd.com/read/29451115/understanding-the-complexities-of-food-safety-using-a-one-health-approach
#14
Kalmia E Kniel, Deepak Kumar, Siddhartha Thakur
The philosophy of One Health is growing in concept and clarity. The interdependence of human, animal, and environmental health is the basis for the concept of One Health. One Health is a comprehensive approach to ensure the health of people, animals, and the environment through collaborative efforts. Preharvest food safety issues align with the grand concept of One Health. Imagine any food production system, and immediately, parallel images from One Health emerge: for example, transmission of zoonotic diseases, antibiotic residues, or resistance genes in the environment; environmental and animal host reservoirs of disease; challenges with rearing animals and growing fresh produce on the same farm; application and transport of manure or diseased animals...
February 2018: Microbiology Spectrum
https://www.readbyqxmd.com/read/29451114/molecular-tools-to-study-preharvest-food-safety-challenges
#15
Deepak Kumar, Siddhartha Thakur
Preharvest food safety research and activities have advanced over time with the recognition of the importance and complicated nature of the preharvest phase of food production. In developed nations, implementation of preharvest food safety procedures along with strict monitoring and containment at various postharvest stages such as slaughter, processing, storage, and distribution have remarkably reduced the burden of foodborne pathogens in humans. Early detection and adequate surveillance of pathogens at the preharvest stage is of the utmost importance to ensure a safe meat supply...
February 2018: Microbiology Spectrum
https://www.readbyqxmd.com/read/29450778/exposure-marker-discovery-of-di-isononyl-cyclohexane-1-2-dicarboxylate-using-two-mass-spectrometry-based-metabolite-profiling-data-processing-methods
#16
Chia-Lung Shih, Pao-Mei Liao, Jen-Yi Hsu, Yi-Ning Chung, Victor G Zgoda, Pao-Chi Liao
Di(isononyl)cyclohexane-1,2-dicarboxylate (DINCH) is a plasticizer used in polyvinyl chloride (PVC) products, such as toys and food packaging. Because the use of DINCH is on the rise, the risk of human exposure to this chemical may likewise increase. Discovering markers for assessing human chemical exposure is difficult because the metabolism of chemicals within humans is complex. In this study, two mass spectrometry (MS)-based metabolite profiling data processing methods, the mass defect filter (MDF) method and the signal mining algorithm with isotope tracing (SMAIT) method, were used for DINCH metabolite discovery, and 110 and 18 potential DINCH metabolite signal candidates were discovered, respectively, from in vitro DINCH incubation samples...
February 15, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29449885/deep-eutectic-solvents-pretreatment-of-agro-industrial-food-waste
#17
Alessandra Procentese, Francesca Raganati, Giuseppe Olivieri, Maria Elena Russo, Lars Rehmann, Antonio Marzocchella
Background: Waste biomass from agro-food industries are a reliable and readily exploitable resource. From the circular economy point of view, direct residues from these industries exploited for production of fuel/chemicals is a winning issue, because it reduces the environmental/cost impact and improves the eco-sustainability of productions. Results: The present paper reports recent results of deep eutectic solvent (DES) pretreatment on a selected group of the agro-industrial food wastes (AFWs) produced in Europe...
2018: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/29449784/immaterial-and-monetary-gifts-in-economic-transactions-evidence-from-the-field
#18
Michael Kirchler, Stefan Palan
Reciprocation of monetary gifts is well-understood in economics. In contrast, there is little research on reciprocal behavior following immaterial gifts like compliments. We narrow this gap and investigate how employees reciprocate after receiving immaterial gifts and material gifts over time. We purchase (1) ice cream from fast food restaurants, and (2) durum doner, a common lunch snack, from independent vendors. Prior to the food's preparation, we either compliment or tip the salesperson. We find that salespersons reciprocate compliments with higher product weight than in a control treatment...
2018: Experimental Economics
https://www.readbyqxmd.com/read/29449173/exopolysaccharide-production-from-bacillus-velezensis-ky471306-using-statistical-experimental-design
#19
Saad A M Moghannem, Mohamed M S Farag, Amr M Shehab, Mohamed S Azab
Exopolysaccharide (EPS) biopolymers produced by microorganisms play a crucial role in the environment such as health and bio-nanotechnology sectors, gelling agents in food and cosmetic industries in addition to bio-flocculants in the environmental sector as they are degradable, nontoxic. This study focuses on the improvement of EPS production through manipulation of different culture and environmental conditions using response surface methodology (RSM). Plackett-Burman design indicated that; molasses, yeast extract and incubation temperature are the most effective parameters...
January 18, 2018: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/29449111/a-comparative-study-of-thermophilic-and-mesophilic-anaerobic-co-digestion-of-food-waste-and-wheat-straw-process-stability-and-microbial-community-structure-shifts
#20
Xuchuan Shi, Xianglin Guo, Jiane Zuo, Yajiao Wang, Mengyu Zhang
Renewable energy recovery from organic solid waste via anaerobic digestion is a promising way to provide sustainable energy supply and eliminate environmental pollution. However, poor efficiency and operational problems hinder its wide application of anaerobic digestion. The effects of two key parameters, i.e. temperature and substrate characteristics on process stability and microbial community structure were studied using two lab-scale anaerobic reactors under thermophilic and mesophilic conditions. Both the reactors were fed with food waste (FW) and wheat straw (WS)...
February 12, 2018: Waste Management
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