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https://www.readbyqxmd.com/read/28091709/use-of-in-silico-models-for-prioritization-of-heat-induced-food-contaminants-in-mutagenicity-and-carcinogenicity-testing
#1
Falko Frenzel, Thorsten Buhrke, Irina Wenzel, Jennifer Andrack, Jan Hielscher, Alfonso Lampen
Numerous Maillard reaction and lipid oxidation products are present in processed foods such as heated cereals, roasted meat, refined oils, coffee, and juices. Due to the lack of experimental toxicological data, risk assessment is hardly possible for most of these compounds. In the present study, an in silico approach was employed for the prediction of the toxicological endpoints mutagenicity and carcinogenicity on the basis of the structure of the respective compound, to examine (quantitative) structure-activity relationships for more than 800 compounds...
January 16, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28091350/the-effects-of-flavanone-rich-citrus-juice-on-cognitive-function-and-cerebral-blood-flow-an-acute-randomised-placebo-controlled-cross-over-trial-in-healthy-young-adults
#2
Daniel J Lamport, Deepa Pal, Anna L Macready, Sofia Barbosa-Boucas, John M Fletcher, Claire M Williams, Jeremy P E Spencer, Laurie T Butler
A plausible mechanism underlying flavonoid-associated cognitive effects is increased cerebral blood flow (CBF). However, behavioural and CBF effects following flavanone-rich juice consumption have not been explored. The aim of this study was to investigate whether consumption of flavanone-rich juice is associated with acute cognitive benefits and increased regional CBF in healthy, young adults. An acute, single-blind, randomised, cross-over design was applied with two 500-ml drink conditions - high-flavanone (HF; 70·5 mg) drink and an energy-, and vitamin C- matched, zero-flavanone control...
January 16, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28089924/water-juice-or-soda-mothers-and-grandmothers-of-preschoolers-discuss-the-acceptability-and-accessibility-of-beverages
#3
Karin Eli, Agneta Hörnell, Mahnoush Etminan Malek, Paulina Nowicka
Intake of sugary beverages is strongly associated with weight gain and obesity among children; however, differences between mothers' and grandmothers' attitudes and practices concerning young children's beverage consumption remain unclear. This is notable since about a quarter of families in the US and the UK rely on grandparents as the main providers of informal childcare. The aim of this study is to examine mothers' and maternal grandmothers' attitudes, knowledge, and practices regarding preschool-age children's beverage consumption...
January 12, 2017: Appetite
https://www.readbyqxmd.com/read/28089688/functional-identification-of-plasma-membrane-monoamine-transporter-pmat-slc29a4-as-an-atenolol-transporter-sensitive-to-flavonoids-contained-in-apple-juice
#4
Yoshihisa Mimura, Tomoya Yasujima, Kinya Ohta, Katsuhisa Inoue, Hiroaki Yuasa
The intestinal absorption of atenolol has recently been reported to be reduced by simultaneous ingestion of fruit juices, such as apple juice. This finding implies a possibility that an unidentified carrier-mediated transport system, which could be interfered by some components of those juices, might be involved in atenolol absorption. In an attempt to explore that possibility, we successfully identified plasma membrane monoamine transporter (PMAT/SLC29A4) as a transporter that can operate for cellular atenolol uptake in the intestine, using Madin-Darby canine kidney II cells stably expressing PMAT...
January 12, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28080039/using-standing-gold-nanorod-arrays-as-surface-enhanced-raman-spectroscopy-sers-substrates-for-detection-of-carbaryl-residues-in-fruit-juice-and-milk
#5
Fouad K Alsammarraie, Mengshi Lin
In recent years, there have been increasing concerns about pesticide residues in various foods. On the other hand, there is growing attention in utilizing novel nanomaterials as highly sensitive, low-cost, and reproducible substrates for surface-enhanced Raman spectroscopy (SERS) applications. The objective of this study was to develop a SERS method for the rapid detection of pesticides that were extracted from different types of food samples (fruit juice and milk). A new SERS substrate was prepared by assembling gold nanorods into standing arrays on a gold-coated silicon slide...
January 12, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28078412/simultaneous-determination-of-four-food-allergens-using-compact-disc-immunoassaying-technology
#6
Ahmed Ali Badran, Sergi Morais, Ángel Maquieira
A multiplex competitive microimmunoassay for the simultaneous determination of gliadin, casein, β-lactoglobulin, and ovalbumin is presented. The assay in microarray format is performed on a DVD where the allergens are physisorbed on the polycarbonate surface of the disc. The immunointeraction is detected using a mixture of specific gold-labeled antibodies and the signal amplified with the silver enhancement method. The optical density of the precipitate, read by a DVD drive, is related to the concentration of the four allergens in sample...
January 11, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28078255/quality-characteristics-and-antioxidant-activity-of-yogurt-supplemented-with-aronia-aronia-melanocarpa-juice
#7
Linh Nguyen, Eun-Sun Hwang
We investigated the quality characteristics and antioxidant activities of yogurt supplemented with 1%, 2%, and 3% aronia juice and fermented for 24 h at 37°C. The total acidity increased with increasing levels of aronia juice and incubation time. Lightness and yellowness of the yogurt decreased, but redness increased, with increasing aronia juice content and incubation time. The number of lactic acid bacteria (LAB) increased with increased incubation time, and yogurt containing 2% and 3% aronia juice showed higher LAB counts than 1% aroinia juice-supplemented yogurt...
December 2016: Preventive Nutrition and Food Science
https://www.readbyqxmd.com/read/28074603/supplementing-diet-with-manitoba-lingonberry-juice-reduces-kidney-ischemia-reperfusion-injury
#8
Cara K Isaak, Pengqi Wang, Suvira Prashar, Karmin O, Daniel C W Brown, Samir C Debnath, Yaw L Siow
BACKGROUND: Lingonberry (Vaccinium vitis-idaea L.) contains high levels of anthocyanins which are bioavailable in the kidney and may be protective against ischemia-reperfusion (IR)-induced acute kidney injury. This study investigated the effect of lingonberry juice on IR-induced stress-activated signaling pathway and inflammatory response in the kidney. RESULTS: Sprague-Dawley rats subjected to kidney IR had significantly impaired kidney function, with increased activation of the JNK signaling pathway and increased inflammatory response, measured using a multiplex panel containing an extensive array of inflammatory biomarkers...
January 11, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28073617/district-policies-and-practices-vary-in-their-association-with-adolescents-consumption-of-milk-and-100-fruit-juice
#9
Sarah A Sliwa, Gabrielle F Miller, Nancy D Brener, Sohyun Park, Caitlin L Merlo
PURPOSE: Researchers previously examined the relationship between school beverage policies and sugar-sweetened beverage (SSB) consumption. This study addressed a research gap by examining cross-sectional associations between district-level policies and practices and U.S. high school students' consumption of milk and 100% fruit juice. METHODS: Data from the 2012 School Health Policies and Practices Study and 2013 Youth Risk Behavior Surveillance System were linked for 12 large urban school districts...
January 7, 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/28073080/impact-of-environmental-factors-on-the-culturability-and-viability-of-listeria-monocytogenes-under-conditions-encountered-in-food-processing-plants
#10
Anaïs Overney, Joséphine Jacques-André-Coquin, Patricia Ng, Brigitte Carpentier, Laurent Guillier, Olivier Firmesse
The ability of Listeria monocytogenes to adhere to and persist on surfaces for months or even years may be responsible for its transmission from contaminated surfaces to food products. Hence the necessity to find effective means to prevent the establishment of L. monocytogenes in food processing environments. The aim of this study was to assess, through a fractional experimental design, the environmental factors that could affect the survival of L. monocytogenes cells on surfaces to thereby prevent the persistence of this pathogen in conditions mimicking those encountered in food processing plants: culture with smoked salmon juice or meat exudate, use of two materials with different hygiene status, biofilm of L...
December 21, 2016: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28072918/production-of-staphylococcal-enterotoxins-d-and-r-in-milk-and-meat-juice-by-staphylococcus-aureus-strains
#11
Justyna Schubert, Magdalena Podkowik, Jarosław Bystroń, Jacek Bania
Seventeen Staphylococcus aureus strains were tested for production of staphylococcal enterotoxin D (SED) and staphylococcal enterotoxin R (SER) in milk and meat juice. SED was secreted in milk by 12 S. aureus strains at 6-54 ng/mL at 24 h and 9-98 ng/mL at 48 h. Another five strains secreted SED at 0.9-1.9 μg/mL at 24 h and at 1.2-2.4 μg/mL at 48 h. Strains producing high levels of SED in milk secreted 77-666 μg/mL of SED in meat juice at 24 h and 132-1225 μg/mL at 48 h. Strains producing lower amounts of SED in milk secreted 228-1109 ng/mL of SED at 24 h and 377-1782 ng/mL at 48 h in meat juice...
January 10, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28071802/essential-oils-against-pathogen-and-spoilage-microorganisms-of-fruit-juices-use-of-versatile-antimicrobial-delivery-systems
#12
Valentina Trinetta, Mark T Morgan, John N Coupland, Umut Yucel
Essential oils (EO) are increasingly used as natural antimicrobial compounds, however the effect of delivery system to enhance their antimicrobial activity has not been widely studied. Limonene (0 to 10 μL/mL) was added to microbial suspensions (∼10(5) CFU/mL) of selected foodborne pathogens (Listeria monocytogenes Scott A, Salmonella enterica Typhimurium, Escherichia coli and Staphylococcus aureus), and spoilage microorganisms (Lactobacillus plantarum, Saccharomyces cerevisiae, and Candida albicans). S...
January 10, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28071029/assessment-of-colour-changes-during-storage-of-elderberry-juice-concentrate-solutions-using-the-optimization-method
#13
Dorota Walkowiak-Tomczak, Janusz Czapski, Karolina Młynarczyk
BACKGROUND: Elderberries are a source of dietary supplements and bioactive compounds, such as anthocyanins. These dyes are used in food technology. The aim of the study was to assess the changes in colour parameters, anthocyanin contents and sensory attributes in solutions of elderberry juice concentrates during storage in a model system and to determine predictability of sensory attributes of colour in solutions based on regression equations using the response surface methodology. METHODS: The experiment was carried out according to the 3-level factorial design for three factors...
July 2016: Acta Scientiarum Polonorum. Technologia Alimentaria
https://www.readbyqxmd.com/read/28069189/ultrasound-treated-potato-peel-and-sweet-lime-pomace-based-biopolymer-film-development
#14
Purba Prasad Borah, Pulak Das, Laxmikant S Badwaik
Treatment and management of food processing waste is a major challenge for food industry. Potato processing industry generates tremendous amount of peel and consider it as zero valued waste. Again, pomace generated after juice extraction from sweet lime pulp is considered as waste and not properly utilized. Whereas these waste could be utilized for the development of biodegradable packaging film to overcome environmental issues. Composite films were prepared with varying proportion of potato peel powder (PP) and sweet lime pomace (SLP) in the ratio of 0:1(A), 0...
May 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28067808/effects-of-beetroot-juice-supplementation-on-cardiorespiratory-endurance-in-athletes-a-systematic-review
#15
REVIEW
Raúl Domínguez, Eduardo Cuenca, José Luis Maté-Muñoz, Pablo García-Fernández, Noemí Serra-Paya, María Carmen Lozano Estevan, Pablo Veiga Herreros, Manuel Vicente Garnacho-Castaño
Athletes use nutritional supplementation to enhance the effects of training and achieve improvements in their athletic performance. Beetroot juice increases levels of nitric oxide (NO), which serves multiple functions related to increased blood flow, gas exchange, mitochondrial biogenesis and efficiency, and strengthening of muscle contraction. These biomarker improvements indicate that supplementation with beetroot juice could have ergogenic effects on cardiorespiratory endurance that would benefit athletic performance...
January 6, 2017: Nutrients
https://www.readbyqxmd.com/read/28065543/mitigating-dietary-arsenic-exposure-current-status-in-the-united-states-and-recommendations-for-an-improved-path-forward
#16
Keeve E Nachman, Gary L Ginsberg, Mark D Miller, Carolyn J Murray, Anne E Nigra, Claire B Pendergrast
Inorganic arsenic (iAs) is a well-characterized carcinogen, and recent epidemiologic studies have linked chronic exposures to non-cancer health outcomes, including cardiovascular disease, diabetes, skin lesions and respiratory disorders. Greater vulnerability has been demonstrated with early life exposure for health effects including lung and bladder cancer, immunotoxicity and neurodevelopment. Despite its well-known toxicity, there are important gaps in the regulatory oversight of iAs in food and in risk communication...
January 5, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28065188/flavanone-rich-citrus-beverages-counteract-the-transient-decline-in-postprandial-endothelial-function-in-humans-a-randomised-controlled-double-masked-cross-over-intervention-study
#17
Catarina Rendeiro, Honglin Dong, Caroline Saunders, Laura Harkness, Melvin Blaze, Yanpeng Hou, Ronald L Belanger, Giulia Corona, Julie A Lovegrove, Jeremy P E Spencer
Specific flavonoid-rich foods/beverages are reported to exert positive effects on vascular function; however, data relating to effects in the postprandial state are limited. The present study investigated the postprandial, time-dependent (0-7 h) impact of citrus flavanone intake on vascular function. An acute, randomised, controlled, double-masked, cross-over intervention study was conducted by including middle-aged healthy men (30-65 years, n 28) to assess the impact of flavanone intake (orange juice: 128·9 mg; flavanone-rich orange juice: 272·1 mg; homogenised whole orange: 452·8 mg; isoenergetic control: 0 mg flavanones) on postprandial (double meal delivering a total of 81 g of fat) endothelial function...
January 9, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28065181/effects-of-a-healthier-snack-on-snacking-habits-and-glycated-hb-hba1c-a-6-week-intervention-study
#18
Mary R Yan, Andrew Parsons, Gillian A Whalley, Elaine C Rush
Dietary behaviour modification may change eating habits and reduce the impact of poor nutrition. This study aimed to evaluate the effects of daily consumption of a healthier snack bar on snacking habits and glycated Hb (HbA1c) within a 6-week intervention. In all, twenty-eight participants were randomly allocated to two groups to either consume the bars as the main snack for 6 weeks (n 14) or receipt of the bars was delayed for 6 weeks (n 14) following a stepped-wedge design. All participants had HbA1c concentrations measured at weeks -1, 0, 4, 6, 10 and 12...
January 9, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28064559/studies-on-the-antidiabetic-activities-of-momordica-charantia-fruit-juice-in-streptozotocin-induced-diabetic-rats
#19
Mona F Mahmoud, Fatma El Zahraa Z El Ashry, Nabila N El Maraghy, Ahmed Fahmy
CONTEXT: Momordica charantia Linn (Cucurbitaceae) (MC) is used in folk medicine to treat various diseases including diabetes mellitus. OBJECTIVE: This study investigates the antidiabetic activities of Momordica charantia (bitter gourd) on streptozotocin-induced type 2 diabetes mellitus in rats. MATERIALS AND METHODS: Male Wister rats were randomly assigned to 4 groups. Group I, Normal control; Group II, STZ diabetic; Group III and IV, Momordica charantia fruit juice was orally administered to diabetic rats (10 mL/kg/day either as prophylaxis for 14 days before induction of diabetes then 21 days treatment, or as treatment given for 21 days after induction of diabetes)...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28064058/pectin-zinc-chitosan-polyethylene-glycol-colloidal-nano-suspension-as-a-food-grade-carrier-for-colon-targeted-delivery-of-resveratrol
#20
Hashem Andishmand, Mahnaz Tabibiazar, Mohammad Amin Mohammadifar, Hamed Hamishehkar
The aim of the present study was to develop chitosan-zinc-pectinate-polyethylene glycol (PEG) nanoparticles (NPs) for colon-targeted delivery of resveratrol. The effects of pectin:ZnCl2:chitosan (PZnC) % w/v, pH and ionic strength of media, and addition of PEG on the colloidal stability and release behavior of resveratrol from NPs were examined by Zeta potential, particle size analyzer, scanning electron microscopy (SEM), and Fourier transform-infrared (FTIR) methods. The particle size and Zeta potential of PZnC NPs in the ratio of 10:1:3% w/v were 399±18nm and +25±1mV, respectively...
January 5, 2017: International Journal of Biological Macromolecules
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