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https://www.readbyqxmd.com/read/29141129/recent-trends-in-salmonella-outbreaks-and-emerging-technology-for-biocontrol-of-salmonella-using-phages-in-foods-a-review
#1
REVIEW
Jun-Hyun Oh, Mi-Kyung Park
Salmonella is one of the principal causes of foodborne outbreaks. As traditional control methods have shown efficacy against emerging Salmonella serotypes or antimicrobial-resistant Salmonella, new approaches have been attempted. The use of lytic phages for the biocontrol of Salmonella in food industry has become an attractive method owing to the many advantages offered by the use of phages as biocontrol agents. Phages are natural alternatives to traditional antimicrobial agents; they have proven effective in the control of bacterial pathogens in food industry, which has led to the development of different phage products...
November 15, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29136882/growth-of-escherichia-coli-on-the-gaas-001-surface
#2
Elnaz Nazemi, Walid M Hassen, Eric H Frost, Jan J Dubowski
Detection of pathogenic bacteria and monitoring their susceptibility to antibiotics are of great importance in the fields of medicine, pharmaceutical research, as well as water and food industries. In order to develop a photonic biosensor for detection of bacteria by taking advantage of photoluminescence (PL) of GaAs-based devices, we have investigated the capture and growth of Escherichia coli K12 on bare and biofunctionalized surfaces of GaAs (001) - a material of interest for capping different semiconductor microstructures...
February 1, 2018: Talanta
https://www.readbyqxmd.com/read/29136875/a-turn-on-competitive-immunochromatographic-strips-integrated-with-quantum-dots-and-gold-nano-stars-for-cadmium-ion-detection
#3
Meng Xiao, Qiangqiang Fu, Haicong Shen, Yuan Chen, Wei Xiao, Daoguang Yan, Xiaojiang Tang, Zhiyong Zhong, Yong Tang
Immunochromatographic strips (ICSs) are inexpensive, simple, portable, and robust, and therefore have many uses in the medicinal, agricultural, and environmental industries. For detection of small molecules, current ICSs are competitive format (competitive ICSs, CICSs), which only offer a turn-off readout mode, and therefore lead to low sensitivity when evaluating results by the naked eye. To overcome this problem, we report a turn-on CICSs that relies on the ability of gold nano-stars (AuNSs) quenching the signal of quantum dots (QDs)...
February 1, 2018: Talanta
https://www.readbyqxmd.com/read/29136846/determination-of-bisphenols-with-estrogenic-activity-in-plastic-packaged-baby-food-samples-using-solid-liquid-extraction-and-clean-up-with-dispersive-sorbents-followed-by-gas-chromatography-tandem-mass-spectrometry-analysis
#4
M T García-Córcoles, M Cipa, R Rodríguez-Gómez, A Rivas, F Olea-Serrano, J L Vílchez, A Zafra-Gómez
Bisphenols (BPs) are a family of chemicals with known endocrine disrupting activity. Bisphenol A (BPA) is the most representative prototype of this group of chemicals. Recently, the use of BPA, a prototype of endocrine disruptors, has been reduced and replaced with structural analogs due to its negative effects on both the environment and consumers. In this work, a new method is presented for the determination of seven BPs, with estrogenic activity in ready-to-eat plastic packaged baby foods. The procedure involves the isolation of the analytes using solid-liquid phase extraction with acetonitrile followed by a clean-up step with a mixture of dispersive-SPE sorbents (C18 and PSA) and magnesium sulphate, to reduce matrix effect from proteins, sugars and lipids...
February 1, 2018: Talanta
https://www.readbyqxmd.com/read/29136484/effect-of-the-strong4life-school-nutrition-program-on-cafeterias-and-on-manager-and-staff-member-knowledge-and-practice-georgia-2015
#5
Janani Rajbhandari-Thapa, Ashley Bennett, Farrah Keong, Wendy Palmer, Trisha Hardy, Jean Welsh
OBJECTIVES: The goal of the Strong4Life School Nutrition Program is to promote healthy eating in school cafeterias in Georgia by training school nutrition managers and staff members to implement changes in the cafeteria to nudge children to make healthier choices. The objective of our study was to evaluate program effect on (1) school nutrition manager and staff member knowledge of evidence-based strategies and their self-efficacy to make positive changes, (2) the school cafeteria environment, and (3) National School Lunch Program participation...
November 2017: Public Health Reports
https://www.readbyqxmd.com/read/29135909/food-swamps-predict-obesity-rates-better-than-food-deserts-in-the-united-states
#6
Kristen Cooksey-Stowers, Marlene B Schwartz, Kelly D Brownell
This paper investigates the effect of food environments, characterized as food swamps, on adult obesity rates. Food swamps have been described as areas with a high-density of establishments selling high-calorie fast food and junk food, relative to healthier food options. This study examines multiple ways of categorizing food environments as food swamps and food deserts, including alternate versions of the Retail Food Environment Index. We merged food outlet, sociodemographic and obesity data from the United States Department of Agriculture (USDA) Food Environment Atlas, the American Community Survey, and a commercial street reference dataset...
November 14, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29135687/environmental-and-epigenetic-regulation-of-postprandial-lipemia
#7
Laurence D Parnell, Jose M Ordovas, Chao-Qiang Lai
PURPOSE OF REVIEW: Postprandial lipemia (PPL), the prolonged increase in plasma triglyceride-rich lipoproteins following food consumption, is an independent risk factor for cardiovascular disease. Genetic variation, environment and the interplay between these direct an individual's postprandial lipid response. From such interplay, inducible and reversible epigenetic changes arise. Increasing evidence suggests epigenetic variation contributes to postprandial response in lipids and risk...
November 11, 2017: Current Opinion in Lipidology
https://www.readbyqxmd.com/read/29135429/laboratory-food-acceptance-in-children-with-autism-spectrum-disorder-compared-with-children-with-typical-development
#8
Michelle A Suarez
Studies using parent-report measures have described the high prevalence of food selectivity in children with autism spectrum disorder (ASD). However, few studies have documented food acceptance in a controlled laboratory environment. The objective of this study was to compare laboratory food acceptance in children with ASD with that of children with typical development (TD). In addition, the relationships between food acceptance and the child's age, sensory processing pattern, and autism severity were explored...
November 2017: American Journal of Occupational Therapy: Official Publication of the American Occupational Therapy Association
https://www.readbyqxmd.com/read/29134588/encapsulation-strategies-of-bacteriophage-felix-o1-for-oral-therapeutic-application
#9
Golam S Islam, Qi Wang, Parviz M Sabour
Due to emerging antibiotic-resistant strains among the pathogens, a variety of strategies, including therapeutic application of bacteriophages, have been suggested as a possible alternative to antibiotics in food animal production. As pathogen-specific biocontrol agents, bacteriophages are being studied intensively. Primarily their applications in the food industry and animal production have been recognized in the USA and Europe, for pathogens including Salmonella, Campylobacter, Escherichia coli, and Listeria...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29134058/a-test-of-four-evolutionary-hypotheses-of-pregnancy-food-cravings-evidence-for-the-social-bargaining-model
#10
Caitlyn Placek
The onset of cravings for items not typically desired is often considered a hallmark of pregnancy. Given the ubiquity of cravings, this phenomenon remains surprisingly understudied. The current study tested four hypotheses of pregnancy food cravings: behavioural immune system, nutrient seeking, resource scarcity and social bargaining. The research took place in Tamil Nadu, South India, with pregnant women residing in rural villages (N = 94). Methods included structured interviews and anthropometric measures...
October 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/29133903/the-winter-pack-ice-zone-provides-a-sheltered-but-food-poor-habitat-for-larval-antarctic-krill
#11
Bettina Meyer, Ulrich Freier, Volker Grimm, Jürgen Groeneveld, Brian P V Hunt, Sven Kerwath, Rob King, Christine Klaas, Evgeny Pakhomov, Klaus M Meiners, Jessica Melbourne-Thomas, Eugene J Murphy, Sally E Thorpe, Sharon Stammerjohn, Dieter Wolf-Gladrow, Lutz Auerswald, Albrecht Götz, Laura Halbach, Simon Jarman, So Kawaguchi, Thomas Krumpen, Gernot Nehrke, Robert Ricker, Michael Sumner, Mathias Teschke, Rowan Trebilco, Noyan I Yilmaz
A dominant Antarctic ecological paradigm suggests that winter sea ice is generally the main feeding ground for krill larvae. Observations from our winter cruise to the southwest Atlantic sector of the Southern Ocean contradict this view and present the first evidence that the pack-ice zone is a food-poor habitat for larval development. In contrast, the more open marginal ice zone provides a more favourable food environment for high larval krill growth rates. We found that complex under-ice habitats are, however, vital for larval krill when water column productivity is limited by light, by providing structures that offer protection from predators and to collect organic material released from the ice...
November 13, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/29132346/less-healthy-breakfast-cereals-are-promoted-more-frequently-in-large-supermarket-chains-in-canada
#12
Monique Potvin Kent, Erika Rudnicki, Crystal Usher
BACKGROUND: The majority of food expenditures are made in supermarkets and this environment influences our purchasing and food intake. Breakfast cereals are frequently marketed as healthy food choices. The objective of this study was to examine the frequency of in-store promotions for cold breakfast cereals in Canadian supermarkets and to determine whether healthier or less healthy breakfast cereals are promoted more frequently. METHODS: Data was collected once per week over a four-week period from a convenience sample of the five largest Canadian supermarkets in the Ottawa/Gatineau area...
November 13, 2017: BMC Public Health
https://www.readbyqxmd.com/read/29132294/artificial-selection-for-odor-guided-behavior-in-drosophila-reveals-changes-in-food-consumption
#13
Elizabeth B Brown, Cody Patterson, Rayanne Pancoast, Stephanie M Rollmann
BACKGROUND: The olfactory system enables organisms to detect chemical cues in the environment and can signal the availability of food or the presence of a predator. Appropriate behavioral responses to these chemical cues are therefore important for organismal survival and can influence traits such as organismal life span and food consumption. However, understanding the genetic mechanisms underlying odor-guided behavior, correlated responses in other traits, and how these constrain or promote their evolution, remain an important challenge...
November 13, 2017: BMC Genomics
https://www.readbyqxmd.com/read/29132209/carbon-nitrogen-and-mercury-isotope-evidence-for-the-biogeochemical-history-of-mercury-in-hawaiian-marine-bottomfish
#14
Dana Sackett, Jeffrey C Drazen, Brian N Popp, C Anela Choy, Joel D Blum, Marcus W Johnson
The complex biogeochemical cycle of Hg makes identifying primary sources of fish tissue Hg problematic. To identify sources and provide insight into this cycle, we combined carbon (δ13C), nitrogen amino acid (δ15NPhe), and Hg isotope (Δ199Hg, Δ201Hg, δ202Hg) data for six species of Hawaiian marine bottomfish. Results from these isotopic systems identified individuals within species that likely fed from separate food webs. Terrestrial freshwater inputs to coastal sediments were identified as the primary source of tissue Hg in the jack species, Caranx ignobilis, which inhabit shallow marine ecosystems...
November 14, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29131514/quantitative-trait-loci-associated-with-soybean-seed-weight-and-composition-under-different-phosphorus-levels
#15
Gokhan Hacisalihoglu, Amy L Burton, Jeffery L Gustin, Selim Eker, Safiye Asikli, Elif Hakli Heybet, Levent Ozturk, Ismail Cakmak, Atilla Yazici, Kent O Burkey, James Orf, A Mark Settles
Seed size and composition are important traits in food crops and can be affected by nutrient availability in the soil. Phosphorus (P) is a non-renewable, essential macronutrient, and P deficiency limits soybean (Glycine max) yield and quality. To investigate the associations of seed traits in low- and high-P environments, soybean recombinant inbred lines (RILs) from the cross of cultivars Fiskeby III and Mandarin (Ottawa) were grown under contrasting P availability environments. Traits including individual seed weight, seed number, and intact mature pod weight were significantly affected by soil P levels and showed transgressive segregation among the RILs...
November 13, 2017: Journal of Integrative Plant Biology
https://www.readbyqxmd.com/read/29131388/saccharomyces-interspecies-hybrids-as-model-organisms-for-studying-yeast-adaptation-to-stressful-environments
#16
Ksenija Lopandic
The strong development of molecular biology techniques and next-generation sequencing technologies in the last two decades has significantly improved our understanding of the evolutionary history of Saccharomyces yeasts. It has been shown that many strains isolated from man-made environments are not pure genetic lines, but contain genetic materials from different species that substantially increase their genome complexity. A number of strains have been described as interspecies hybrids, implying different yeast species that under specific circumstances exchange and recombine their genomes...
November 13, 2017: Yeast
https://www.readbyqxmd.com/read/29130292/scoping-study-investigating-stakeholder-perceptions-and-use-of-school-canteens-in-an-australian-city
#17
Tanya Lawlis, Dionne Eckley, Maggie Jamieson, Melissa Knox
AIM: To investigate stakeholder perceptions of healthy food availability in school canteens, the promotion of healthy foods and canteen policy compliance. METHODS: This is a cross-sectional study of Catholic and independent primary and high schools comprising three investigative phases: (i) survey of 39 schools, (ii) survey of canteen managers and parents from 10 schools and (iii) an audit of school menus against National Healthy School Canteen Guidelines. RESULTS: Total participants included: 6 principals, no canteen mangers and 86 parents from two schools; 24 menus were audited...
November 2017: Nutrition & Dietetics: the Journal of the Dietitians Association of Australia
https://www.readbyqxmd.com/read/29130291/exploring-nutrition-capacity-in-australia-s-charitable-food-sector
#18
Kate Wingrove, Liza Barbour, Claire Palermo
AIM: The primary aim of this study was to explore the capacity of community organisations within Australia's charitable food sector to provide nutritious food to people experiencing food insecurity. A secondary aim was to explore their capacity to provide food in an environment that encourages social interaction. METHODS: This qualitative research used an exploratory case study design and was informed by a nutrition capacity framework. Participants were recruited through SecondBite, a not-for-profit food rescue organisation in Australia...
November 2017: Nutrition & Dietetics: the Journal of the Dietitians Association of Australia
https://www.readbyqxmd.com/read/29129876/-microbial-ecology-along-the-gastrointestinal-tract
#19
Ethan T Hillman, Hang Lu, Tianming Yao, Cindy H Nakatsu
The ecosystem of the human gastrointestinal (GI) tract traverses a number of environmental, chemical, and physical conditions because it runs from the oral cavity to the anus. These differences in conditions along with food or other ingested substrates affect the composition and density of the microbiota as well as their functional roles by selecting those that are the most suitable for that environment. Previous studies have mostly focused on Bacteria, with the number of studies conducted on Archaea, Eukarya, and Viruses being limited despite their important roles in this ecosystem...
November 10, 2017: Microbes and Environments
https://www.readbyqxmd.com/read/29129061/a-highly-sensitive-and-high-throughput-method-for-the-analysis-of-bisphenol-analogues-and-their-halogenated-derivatives-in-breast-milk
#20
Yumin Niu, Bin Wang, Yunfeng Zhao, Jing Zhang, Bing Shao
The structural analogs of bisphenol A (BPA) and their halogenated derivatives (together referred as BPs) have been found in environment, food and even human. Limited research showed that some of them exhibited similar to or even greater toxicities than BPA. Therefore, adverse effects on humans with low-dose in early life exposure were expected for BPs. Breast milk is an excellent matrix could reflect fetus and babies exposure to contaminants. Some of the emerging BPs may present with trace or ultra-trace levels in human...
November 13, 2017: Journal of Agricultural and Food Chemistry
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