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https://www.readbyqxmd.com/read/28804811/serum-diamine-oxidase-in-pseudoallergy-in-the-pediatric-population
#1
Joanna Kacik, Barbara Wróblewska, Sławomir Lewicki, Robert Zdanowski, Bolesław Kalicki
Histamine intolerance (pseudoallergy) is a poorly investigated type of food hypersensitivity. The main enzyme responsible for histamine degradation in the extracellular matrix is diamine oxidase (DAO). Disturbances in the concentration or activity of DAO may lead to the development of clinical signs of allergy. The aim of the present work was to assess the DAO concentration, peripheral blood morphology, lymphocytes phenotyping (CD3+, CD4+, CD8+, CD19+, NK cells, NKT cells, and activated T-cells), and natural regulatory Treg (nTregs) cell population (CD4+, CD25+, CD127low, and FoxP3) in 34 pediatric patients with histamine-dependent syndromes...
August 15, 2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28803189/efficacy-of-radiant-catalytic-ionization-to-reduce-bacterial-populations-in-air-and-on-different-surfaces
#2
Krzysztof Skowron, Katarzyna Grudlewska, Joanna Kwiecińska-Piróg, Grzegorz Gryń, Mścisław Śrutek, Eugenia Gospodarek-Komkowska
Air contamination by biological agents is often observed in medical or veterinary facilities and industrial plants. Bioaerosols may sediment and pose the surface contamination. Microorganisms present on them may become a source of infections among humans and food contamination. This study determined the use of oxidative gases, including ozone and peroxide, generated by the Radiant Catalytic Ionization (RCI) cell for the inactivation of Acinetobacter baumannii, Escherichia coli, Enterococcus faecalis, Pseudomonas aeruginosa, Salmonella Enteritidis, Listeria monocytogenes, Staphylococcus aureus, Streptococcus epidermidis, Bacillus subtilis, Clostridium sporogenes, Candida albicans, Aspergillus niger and Penicillium chrysogenumon in air and on different surfaces...
August 10, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28800827/modelling-the-effect-of-water-activity-reduction-by-sodium-chloride-or-glycerol-on-conidial-germination-and-radial-growth-of-filamentous-fungi-encountered-in-dairy-foods
#3
Nicolas Nguyen Van Long, Karim Rigalma, Louis Coroller, Robin Dadure, Stella Debaets, Jérôme Mounier, Valérie Vasseur
Water activity (aw) is one of the most influential abiotic factors affecting fungal development in foods. The effects of aw reduction on conidial germination and radial growth are generally studied by supplementing culture medium with the non-ionic solute glycerol despite food aw can also depend on the concentration of ionic solutes such as sodium chloride (NaCl). The present study aimed at modelling and comparing the effects of aw, either modified using NaCl or glycerol, on radial growth and/or conidial germination parameters for five fungal species occurring in the dairy environment...
December 2017: Food Microbiology
https://www.readbyqxmd.com/read/28798884/spe-tlc-densitometric-quantification-of-selected-synthetic-food-dyes-in-liquid-foodstuffs-and-pharmaceutical-preparations
#4
Anna W Sobańska, Jarosław Pyzowski, Elżbieta Brzezińska
Selected synthetic food dyes (tartrazine, Ponceau 4R, Brilliant Blue, orange yellow, and azorubine) were isolated from liquid preparations (mouthwashes and beverages) by Solid Phase Extraction on aminopropyl-bonded silica with diluted aqueous sodium hydroxide as an eluent. The extraction step was followed by thin layer chromatography on silica gel 60 with chloroform-isopropanol-25% aq. ammonia 1 : 3 : 1 (v/v/v) as mobile phase and the densitometric quantification of dyes was achieved using quadratic calibration plots (R(2) > 0...
2017: Journal of Analytical Methods in Chemistry
https://www.readbyqxmd.com/read/28772849/gallic-acid-as-an-oxygen-scavenger-in-bio-based-multilayer-packaging-films
#5
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/28771578/keep-calm-and-don-t-stop-growing-non-consumptive-effects-of-a-sympatric-predator-on-two-invasive-ponto-caspian-gammarids-dikerogammarus-villosus-and-pontogammarus-robustoides
#6
Łukasz Jermacz, Jarosław Kobak
Predators shape prey populations by elimination of individuals (consumptive effects) and by inducing modifications in prey behaviour, physiology or morphology (NCE-non-consumptive effects). Due to the resource allocation to defence, decreased feeding and higher stress, the costs of predator NCEs can be considerable. Therefore, the resistance to NCEs may be crucial for population growth and interspecific competition. We tested the resistance of Ponto-Caspian gammarids Dikerogammarus villosus and Pontogammarus robustoides to NCEs imposed by their predator, the racer goby Babka gymnotrachelus...
2017: PloS One
https://www.readbyqxmd.com/read/28759797/survival-of-selected-foodborne-pathogens-on-dry-cured-pork-loins
#7
Ángela M Morales-Partera, Fernando Cardoso-Toset, Francisco Jurado-Martos, Rafael J Astorga, Belén Huerta, Inmaculada Luque, Carmen Tarradas, Jaime Gómez-Laguna
The safety of ready-to-eat products such as cured pork loins must be guaranteed by the food industry. In the present study, the efficacy of the dry curing process of pork loins obtained from free-range pigs in the reduction of three of the most important foodborne pathogens is analysed. A total of 28 pork loin segments, with an average weight of 0.57±0.12kg, were divided into four groups with three being inoculated by immersion with 7logCFU/ml of either Salmonella Typhimurium, Campylobacter coli or Listeria innocua and the last one inoculated by immersion with sterile medium (control group)...
July 26, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28741960/retention-of-viability-of-salmonella-in-sucrose-as-affected-by-type-of-inoculum-water-activity-and-storage-temperature
#8
Larry R Beuchat, David A Mann, Christine A Kelly, Ynes R Ortega
Outbreaks of salmonellosis have been associated with consumption of high-sugar, low-water activity (aw) foods. The study reported here was focused on determining the effect of storage temperature (5 and 25°C) on survival of initially high and low levels of Salmonella in dry-inoculated sucrose (aw 0.26 ± 0.01 to 0.54 ± 0.01) and wet-inoculated sucrose (aw 0.24 ± 0.01 to 0.44 ± 0.04) over a 52-week period. With the exception of dry-inoculated sucrose at aw 0.26, Salmonella survived for 52 weeks in dry- and wet-inoculated sucrose stored at 5 and 25°C...
September 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28740296/lithium-biofortification-of-medicinal-mushrooms-agrocybe-cylindracea-and-hericium-erinaceus
#9
Piotr Rzymski, Przemysław Niedzielski, Marek Siwulski, Mirosław Mleczek, Sylwia Budzyńska, Monika Gąsecka, Barbara Poniedziałek
Although an increase in dietary lithium (Li) has been suggested as a possible method for mood stabilization and for decreasing violence and suicidal rates, no Li-enriched food has entered the market. Here we continue to explore the feasibility of mushrooms in this respect and have investigated the growth, accumulation and mineral content (Ca, K, Mg and Na) of Agrocybe cylidracea and Hericium erinaceus cultivated on substrates supplemented with 0.25-1.0 mM of Li as acetate or chloride. As demonstrated, supplementation with LiCl yielded more satisfactory results, did not alter mushroom biomass, appearance, shape or size regardless of Li concentration...
July 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28664693/readiness-of-adolescents-to-use-genetically-modified-organisms-according-to-their-knowledge-and-emotional-attitude-towards-gmos
#10
Stanisław Lachowski, Anna Jurkiewicz, Piotr Choina, Magdalena Florek-Łuszczki, Agnieszka Buczaj, Małgorzata Goździewska
INTRODUCTION: Agriculture based on genetically modified organisms plays an increasingly important role in feeding the world population, which is evidenced by a considerable growth in the size of land under genetically modified crops (GM). Uncertainty and controversy around GM products are mainly due to the lack of accurate and reliable information, and lack of knowledge concerning the essence of genetic modifications, and the effect of GM food on the human organism, and consequently, a negative emotional attitude towards what is unknown...
June 7, 2017: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/28658963/chemical-composition-and-physicochemical-properties-of-phaeodactylum-tricornutum-microalgal-residual-biomass
#11
L J German-Báez, M A Valdez-Flores, J V Félix-Medina, C D Norzagaray-Valenzuela, D U Santos-Ballardo, C Reyes-Moreno, L M Shelton, A Valdez-Ortiz
The production of photosynthetic biofuels using microalgae is a promising strategy to combat the use of non-renewable energy sources. The microalgae residual biomass is a waste by-product of biofuel production; however, it could prove to have utility in the development of sustainable nutraceuticals and functional foods. In this study, a comprehensive characterisation of the under-utilised Phaeodactylum tricornutum microalgae residual biomass is presented. Proximal composition, antioxidant capacity (using three different antioxidant assays; oxygen radical absorbance capacity; radical cation activity, ABTS; and radical scavenging activity, DPPH), and total phenolic content of free and bound polyphenols were determined...
January 1, 2017: Food Science and Technology International, Ciencia y Tecnología de Los Alimentos Internacional
https://www.readbyqxmd.com/read/28624079/effect-of-the-state-of-water-and-relative-humidity-on-ageing-of-pla-films
#12
J R Rocca-Smith, N Chau, D Champion, C-H Brachais, E Marcuzzo, A Sensidoni, F Piasente, T Karbowiak, F Debeaufort
Various types of food are now commercialized in packaging materials based on poly(lactic acid) (PLA) due to its eco-friendly nature. However, one of the main limitations related to PLA is its reactivity with water. For food applications, it is of critical importance to better understand the hydrolysis of PLA driven by water molecules either in liquid or in vapour state. This work focuses on the modifications of PLA induced by water when simulating contact with semi-dry foods (aw≈0.5), high moisture foods (aw≈1) and liquid foods (aw≈1)...
December 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28607625/hepatic-portal-venous-gas-in-children-younger-than-2-years-old-radiological-and-clinical-characteristics-in-diseases-other-than-necrotizing-enterocolitis
#13
Marzena Barczuk-Falęcka, Przemysław Bombiński, Zofia Majkowska, Michał Brzewski, Stanisław Warchoł
BACKGROUND: Hepatic portal venous gas (HPVG) is a rare imaging finding in children. It can be an important manifestation of severe diseases such as necrotizing enterocolitis (NEC) in neonates or bowel wall rupture in older children. However, there are many other diseases presenting with HPVG that do not necessarily require a surgical intervention. CASE REPORT: In the period between 2011-2015, there were 12 cases of HPVG in children aged up to 24 months in our hospital...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28604598/influence-of-food-characteristics-and-food-additives-on-the-antimicrobial-effect-of-garlic-and-oregano-essential-oils
#14
Juan García-Díez, Joana Alheiro, Ana Luisa Pinto, Luciana Soares, Virgilio Falco, Maria João Fraqueza, Luis Patarata
Utilization of essential oils (EOs) as antimicrobial agents against foodborne disease has gained importance, for their use as natural preservatives. Since potential interactions between EOs and food characteristics may affect their antimicrobial properties, the present work studies the influence of fat, protein, pH, aw and food additives on the antimicrobial effect of oregano and garlic EOs against Salmonella spp. and Listeria monocytogenes. Results showed that protein, pH, aw, presence of beef extract, sodium lactate and nitrates did not influence their antimicrobial effect...
June 10, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28604099/seasonal-and-daily-changes-in-the-behaviour-of-the-adult-emu-dromaius-novaehollandiae-under-farm-conditions
#15
M Bucław, D Szczerbińska
1. The aim of this study was to present selected elements of emu behaviour in three different seasons (the non-breeding season, the pre-breeding season and the breeding season) and in the morning and afternoon. The study focused on feed, water and sand intake, plumage care, resting, agonistic behaviour and other activities, mostly standing still, aimless walking or observing the surroundings. 2. The troop consisted of 11 emus (5 females and 6 males) aged 12 years, kept in a free-range system. Observations were carried out during a period of three weeks in each season, during which 60-minute observation sessions took place on 3 randomly chosen days...
June 12, 2017: British Poultry Science
https://www.readbyqxmd.com/read/28581334/heat-tolerances-of-salmonella-cronobacter-sakazakii-and-pediococcus-acidilactici-inoculated-into-galactooligosaccharide
#16
Jihyun Bang, Moonkak Choi, Haeseok Jeong, Sangseob Lee, Yoonbin Kim, Jee-Hoon Ryu, Hoikyung Kim
Food-grade galactooligosaccharide (GOS) with low water activity (aw of ca. 0.7) is used as an ingredient in various foods. We evaluated heat tolerances of Salmonella, Cronobacter sakazakii, and Pediococcus acidilactici at temperatures (70 to 85°C) used during the saturation process of GOS by comparing decimal reduction time (D-values) and thermal resistance constants (z-values). To determine the D- and z-values, GOS containing Salmonella (5.1 to 5.8 log CFU/g) or C. sakazakii (5.3 to 5.9 log CFU/g) was heat treated at 70, 77...
June 3, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28554632/the-composition-of-bioactive-compounds-and-antioxidant-activity-of-saskatoon-berry-amelanchier-alnifolia-nutt-genotypes-grown-in-central-poland
#17
Sabina Lachowicz, Jan Oszmiański, Stanisław Pluta
Bioactive compounds in fruits of four Saskatoon berry genotypes grown in a trial in central Poland are presented in this paper. Two Polish breeding clones (no. 5/6 and type S) and two Canadian cultivars - 'Martin' and 'Smoky' - were used in studies conducted in 2015-2016. Fourty-eight bioactive compounds were identified in Saskatoon berry genotypes, including twenty-nine polyphenolic compounds (4 anthocyanins, 9 phenolic acids, 9 flavonols, 7 flavan-3-ols), 3 triterpenoids, 7 carotenoids, 5 chlorophylls and 4 tocopherols...
November 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28528305/characterization-of-estrogenic-and-androgenic-activity-of-phthalates-by-the-xenoscreen-yes-yas-in-vitro-assay
#18
Radosław Czernych, Milena Chraniuk, Paweł Zagożdżon, Lidia Wolska
The presented study investigates and compares the estrogenic and androgenic activities of commonly used diesters of phthalic acid (phthalates) using the XenoScreen YES/YAS assay. Phthalates are commonly used plasticizers in polymers dedicated for i.e. food and drug containers. Since phthalates are not chemically bonded to the polymer, they can leach or migrate from the polymer. Therefore, phthalates are identified as contaminants in a variety of consumer products. Investigation of estrogenic and androgenic activities of phthalates (DEP, DBP, BBP, DEHP and DINP) showed no significant effect of tested substances either on hERα or hAR receptors...
July 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28525761/impact-of-bioactive-packaging-systems-based-on-evoh-films-and-essential-oils-in-the-control-of-aflatoxigenic-fungi-and-aflatoxin-production-in-maize
#19
Eva M Mateo, José V Gómez, Irene Domínguez, Jose V Gimeno-Adelantado, Rufino Mateo-Castro, Rafael Gavara, Misericordia Jiménez
Aspergillus flavus and A. parasiticus are the most common fungal species associated with aflatoxin (AF) contamination of cereals, especially maize, and other agricultural commodities. AFB1, the most frequent and toxic metabolite, is a powerful hepatotoxic, teratogenic and mutagenic compound. Effective strategies to control these fungal species and AFs in food and feed are required. Active packaging film containing essential oils (EO) is one of the most innovative food packaging concepts. In this study, ethylene-vinyl alcohol (EVOH) copolymer films incorporating EO from Origanum vulgare (ORE), Cinnamomum zeylanicum (CIN) or their major active constituents, carvacrol (CAR) and cinnamaldehyde (CINHO), respectively, were developed and assayed to control growth of A...
May 11, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28481104/effect-of-morphology-and-size-of-halloysite-nanotubes-on-functional-pectin-bionanocomposites-for-food-packaging-applications
#20
Maziyar Makaremi, Pooria Pasbakhsh, Giuseppe Cavallaro, Giuseppe Lazzara, Yoong Kit Aw, Sui Mae Lee, Stefana Milioto
Pectin bionanocomposite films filled with various concentrations of two different types of halloysite nanotubes were prepared and characterized in this study as potential films for food packaging applications. The two types of halloysite nanotubes were long and thin (patch) (200-30 000 nm length) and short and stubby (Matauri Bay) (50-3000 nm length) with different morphological, physical, and dispersibility properties. Both matrix (pectin) and reinforcer (halloysite nanotubes) used in this study are considered as biocompatible, natural, and low-cost materials...
May 15, 2017: ACS Applied Materials & Interfaces
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