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https://www.readbyqxmd.com/read/28433923/uhplc-q-orbitrap-hrms-based-global-metabolomics-reveal-metabolome-modifications-in-plasma-of-young-women-after-cranberry-juice-consumption
#1
Haiyan Liu, Timothy J Garrett, Zhihua Su, Christina Khoo, Liwei Gu
Plasma metabolome in young women following cranberry juice consumption were investigated using a global UHPLC-Q-Orbitrap-HRMS approach. Seventeen female college students, between 21 and 29 years old, were given either cranberry juice or apple juice for three days using a cross-over design. Plasma samples were collected before and after juice consumption. Plasma metabolomes were analyzed using UHPLC-Q-Orbitrap-HRMS followed by orthogonal partial least squares-discriminant analyses (OPLS-DA). S-plot was used to identify discriminant metabolites...
April 7, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28433435/fabric-phase-sorptive-extraction-as-a-reliable-tool-for-rapid-screening-and-detection-of-freshness-markers-in-oranges
#2
M Aznar, S Úbeda, C Nerin, A Kabir, K G Furton
A simple, fast and sensitive analyte extraction method based on fabric phase sorptive extraction (FPSE) followed by gas chromatography-mass spectrometry (GC-MS) and ultra-performance liquid chromatography-quadrupole time of flight mass spectrometry (UPLC-QTOF-MS) analysis was developed for the analysis of 12 volatile compounds that represent most of the principal chemical families possessing different polarities and volatilities. Five FPSE media coated with different sol-gel sorbent chemistries having different polarities and selectivities were studied: long chain poly(dimethylsiloxane) (PDMS), short chain poly(tetrahydrofuran) (PTHF), Carbowax 20M (CW20M), short chain poly(dimethyl siloxane) (SC PDMS) and polyethylene glycol-polypropylene glycol-polyethylene glycol triblock copolymer (PEG-PPG-PEG)...
April 8, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28433168/evaluation-of-the-physical-properties-and-conservation-of-the-antioxidants-content-employing-inulin-and-maltodextrin-in-the-spray-drying-of-blueberry-juice
#3
S B Araujo-Díaz, C Leyva-Porras, P Aguirre-Bañuelos, C Álvarez-Salas, Z Saavedra-Leos
In this work, two carbohydrate polymers, inulin (I) and maltodextrin (MX), were compared as carrying agents in the spray drying of blueberry juice (BJ). The physicochemical properties and the conservation of the antioxidants content were characterized. Both systems, showed non-agglomerated particles and light-purple color appearance. Powders were subjected to the adsorption of water, and the glass transition temperature (Tg) decreased with the water activity. The evolution of the microstructure in the MX-BJ remained unchanged, while the I-BJ presented an abrupt change from amorphous to crystalline...
July 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28430608/adrenalectomy-abolishes-hypergravity-induced-gastric-acid-hyposecretion
#4
Kiyong Na, Hyun-Soo Kim
Jet fighter pilots experience high gravitational acceleration forces in the cephalocaudal direction (+Gz), causing severe stress. Stress affects different physiological functions of the gastrointestinal tract. Although the effects of exposure to hypergravity on cardiovascular and cerebral functions have been the subject of numerous studies, crucial information regarding potential pathophysiological alterations following hypergravity exposure in the gastrointestinal tract is lacking. We recently documented a significant decrease in gastric secretory activity in rats after acute exposure to hypergravity...
February 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28429634/migration-of-oligomers-from-pet-determination-of-diffusion-coefficients-and-comparison-of-experimental-versus-modelled-migration
#5
Maria Hoppe, Roberta Fornari, Pim de Voogt, Roland Franz
Polyethylene terephthalate is increasingly used as food contact material for example in containers for beverage such as bottles for soft drinks, mineral water, juices and beer. Mass transport of substances present in packaging materials into the packed food and beverages is monitored to verify the food law compliance of the materials. PET is known to contain or give rise to migrants that are oligomers derived from the polymeric material. Until now their actual migration potential has been investigated only poorly...
April 21, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28429081/cognitive-and-mood-improvements-following-acute-supplementation-with-purple-grape-juice-in-healthy-young-adults
#6
C F Haskell-Ramsay, R C Stuart, E J Okello, A W Watson
PURPOSE: Berry-derived phenolic compounds found in grapes have been associated with a number of health benefits, including the augmentation of human brain function and cognition. Previous intervention studies of Concord grape juice have demonstrated improvement to memory and driving ability following 3- to 4-month supplementation in middle-aged and older adults. However, no studies to date have demonstrated acute cognitive benefits of grape juice, and investigation of these effects in young adults is lacking...
April 20, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28428570/investigation-of-the-erosive-potential-of-sour-novelty-sweets
#7
A Aljawad, M Z Morgan, R Fairchild, J S Rees
Background The expansion of the novelty sweets market in the UK has major potential public health implications in children and young adults as they may cause dental erosion.Objective To investigate the erosive potential of the novelty sweets in term of their physiochemical properties and amount of enamel loss.Subjects and methods The pH of a variety of novelty sweets was tested in vitro using a pH meter and the neutralisable acidity was assessed by titrating the sweets against 0.1M NaOH. The viscosity of the novelty sweets was measured using a rotational viscometer...
April 21, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28428151/impact-of-front-of-pack-nutrition-information-and-label-design-on-children-s-choice-of-two-snack-foods-comparison-of-warnings-and-the-traffic-light-system
#8
Alejandra Arrúa, María Rosa Curutchet, Natalia Rey, Patricia Barreto, Nadya Golovchenko, Andrea Sellanes, Guillermo Velazco, Medy Winokur, Ana Giménez, Gastón Ares
Research on the relative influence of package features on children's perception of food products is still necessary to aid policy design and development. The aim of the present work was to evaluate the relative influence of two front-of-pack (FOP) nutrition labelling schemes, the traffic light system and Chilean warning system, and label design on children's choice of two popular snack foods in Uruguay, wafer cookies and orange juice. A total of 442 children in grades 4 to 6 from 12 primary schools in Montevideo (Uruguay) participated in the study...
April 18, 2017: Appetite
https://www.readbyqxmd.com/read/28428129/three-phase-partitioning-a-scalable-method-for-the-purification-and-recovery-of-cucumisin-a-milk-clotting-enzyme-from-the-juice-of-cucumis-melo-var-reticulatus
#9
Mohammed Gagaoua, Ferhat Ziane, Sabrina Nait Rabah, Nawel Boucherba, Amel Ait Kaki El-Hadef El-Okki, Amel Bouanane-Darenfed, Kahina Hafid
Cucumisin [EC 3.4.21.25] was first purified from Cucumis melo var. reticulatus juice by three-phase partitioning (TPP). Optimum purification parameters of the TPP system were determined as 60% ammonium sulfate saturation with 1.0:1.25 ratio of crude extract: t-butanol at pH and temperature of 8.0 and 20°C, respectively. Cucumisin was purified with 4.61 purification fold and 156% activity recovery. The molecular weight of the recovered cucumisin was determined as 68.4kDa and its isoelectric point is 8.7. Optimum pH and temperature of cucumisin were pH 9...
April 17, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28427655/effect-of-ultrasound-and-enzymatic-pre-treatment-on-yield-and-properties-of-banana-juice
#10
Sandhan Jyoti Bora, Jyotishman Handique, Nandan Sit
Effect of ultrasound and enzymatic pre-treatments with cellulase and pectinase on yield and properties of banana juice were investigated. A two-level full factorial design was employed. The factors selected were ultrasonication time (0 and 30min), cellulase concentration (0 and 0.2%) and pectinase concentration (0 and 0.2%). The responses studied were yield, viscosity, clarity, total soluble solids (TSS) and pH. It was observed that pectinase was more effective in increasing the yield of juice compared to cellulase...
July 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28427647/ascorbic-acid-stability-in-fruit-juices-during-thermosonication
#11
Karla Aguilar, Alfonso Garvín, Albert Ibarz, Pedro E D Augusto
Thermosonication is an emerging technology useful for inactivating microorganisms and enzymes in fruit juices. However, the effect of the ultrasound processing on the ascorbic acid content is not clear and the results reported in the literature are contradictory. In this work, the impact of sonication and thermosonication on the ascorbic acid content was first evaluated in model systems. Degassed model solutions at four different pH values (3-6) were processed with or without sonication for 60min at two different conditions of temperature (25 and 55°C)...
July 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28427631/combined-effect-of-ultrasound-heat-and-pressure-on-escherichia-coli-o157-h7-polyphenol-oxidase-activity-and-anthocyanins-in-blueberry-vaccinium-corymbosum-juice
#12
Jinyan Zhu, Yuehua Wang, Xinghe Li, Bin Li, Suwen Liu, Nan Chang, Ding Jie, Chong Ning, Haiyan Gao, Xianjun Meng
The objective of this study was to evaluate the effect of different treatments-heat treatment (HT), sonication (SC), thermosonication (TS), manosonication (MS), manothermal (MT), and manothermosonication (MTS) on Escherichia coli O157:H7, polyphenol oxidase (PPO), and anthocyanin content in blueberry juice. First, samples were treated at different temperatures (30, 40, 50, 60, 70, and 80°C) and power intensities (280, 420, 560, and 700W) for 10min. Subsequently, samples were treated using combinations of power intensity and mild temperature for 10min...
July 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28426676/economic-injury-levels-for-asian-citrus-psyllid-control-in-process-oranges-from-mature-trees-with-high-incidence-of-huanglongbing
#13
Cesar Monzo, Philip A Stansly
The Asian citrus psyllid (ACP), Diaphorina citri Kuwayama, is the key pest of citrus wherever it occurs due to its role as vector of huanglongbing (HLB) also known as citrus greening disease. Insecticidal vector control is considered to be the primary strategy for HLB management and is typically intense owing to the severity of this disease. While this approach slows spread and also decreases severity of HLB once the disease is established, economic viability of increasingly frequent sprays is uncertain. Lacking until now were studies evaluating the optimum frequency of insecticide applications to mature trees during the growing season under conditions of high HLB incidence...
2017: PloS One
https://www.readbyqxmd.com/read/28426048/flavored-black-ginseng-exhibited-antitumor-activity-via-improving-immune-function-and-inducing-apoptosis
#14
Guilin Chen, Haijun Li, Yugang Gao, Lianxue Zhang, Yan Zhao
The objective of this project was to examine saponin and carbohydrate conversion, and to evaluate the antitumor activity of a novel ready-to-eat flavored black ginseng (FBG). The results of chemical experiments showed that common saponins in ginseng such as ginsenoside Re, Rg1, Rb1, etc., are almost completely converted to rare saponins and aglycones such as ginsenoside Rg5, protopanaxadiol (PPD), etc., and non-reducing sugars such as starch are almost completely degraded into reducing sugars as affected by garlic juice and high temperature processing...
April 20, 2017: Food & Function
https://www.readbyqxmd.com/read/28426027/analysis-of-the-germination-proteins-in-alicyclobacillus-acidoterrestris-spores-subjected-to-external-factors
#15
Izabela Porębska, Barbara Sokołowska
The presence of Alicyclobacillus acidoterrestris, a thermoacidophilic and spore-forming bacterium, in pasteurized acidic juices poses a serious problem for the processing industry. Therefore, the use of other more effective techniques, such as high hydrostatic pressure (HHP) and supercritical carbon dioxide (SCCD), is considered for preserving juices in order to inactivate these bacteria, while reducing the loss of nutrients and sensory quality of juices. On the other hand, HHP and SCCD when combined with a moderately elevated temperature can induce germination of bacterial spores, making them more vulnerable to inactivation...
April 21, 2017: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/28425868/pomegranate-as-a-possible-treatment-in-reducing-risk-of-developing-wound-healing-obesity-neurodegenerative-disorders-and-diabetes-mellitus
#16
Manaf AlMatar, Md Rashedul Islam, Othman Albari, Işıl Var, Fatih Köksal
Four distinguished although overlying stages make up the methodical procedure of wound healing, which are hemostasis, inflammation, proliferation and remodelling. Multiple sclerosis (MS) comprises a persistent inflammatory infection of the central nervous system, and is related to demyelination, neurodegeneration, as well as susceptibility to oxidative pressure. Obesity signifies a swiftly developing danger to the wellbeing of populations in a rising number of nations. Usually called diabetes mellitus (DM) by medical practitioners, diabetes details a collection of metabolic diseases within which the individual has raised blood glucose, either due to an insufficiency of insulin generation, or the lack of suitable response by the body to insulin, or both...
April 19, 2017: Mini Reviews in Medicinal Chemistry
https://www.readbyqxmd.com/read/28422539/the-effect-of-nitrate-supplementation-on-cycling-performance-in-the-heat-in-well-trained-cyclists
#17
Joseph A McQuillan, Julia R Casadio, Deborah K Dulson, Paul B Laursen, Andrew E Kilding
PURPOSE: The aim of this study was to determine the effect of NO3(-) consumption on measures of perception, thermoregulation and cycling performance in hot conditions. METHODS: Using a randomised, double-blind, crossover-design, 8 well-trained cyclists (mean ± SD: age: 25 ± 8 y, V̇O2peak: 64 ± 5 ml·kg(-1)·min(-1)) performed 2 separate trials, in hot (35°C, 60% relative humidity) environments, having ingested either 140 ml NO3(-)-rich beetroot juice ~8 mmol NO3(-) (NIT), or placebo (PLA), daily for 3-days with a 7-day washout period separating trials...
April 19, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28421045/cranberry-juice-and-combinations-of-its-organic-acids-are-effective-against-experimental-urinary-tract-infection
#18
Heidi D Jensen, Carsten Struve, Søren B Christensen, Karen A Krogfelt
The antibacterial effect of cranberry juice and the organic acids therein on infection by uropathogenic Escherichia coli was studied in an experimental mouse model of urinary tract infection (UTI). Reduced bacterial counts were found in the bladder (P < 0.01) of mice drinking fresh cranberry juice. Commercially available cranberry juice cocktail also significantly reduced (P < 0.01) bacterial populations in the bladder, as did the hydrophilic fraction of cranberry juice (P < 0.05). Quinic, malic, shikimic, and citric acid, the preponderant organic acids in cranberry juice, were tested in combination and individually...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28419504/sensory-and-rheological-characteristics-of-thickened-liquids-differing-concentrations-of-a-xanthan-gum-based-thickener
#19
Hyeri Kim, Han-Im Hwang, Ki-Won Song, Jeehyun Lee
The objectives of this study were to develop and compare sensory characteristics of beverages and soups thickened with different concentrations of a xanthan gum-based thickener, and to examine, using rheological measurement, whether the viscosity of the thickened liquids conformed to the recommendations of the National Dysphagia Diet Task Force. Beverages tested included water, plum juice, apple juice, orange juice, milk, soymilk, and Yakult. The thickening agent was added to samples at concentrations of 1%, 2%, or 3%...
April 17, 2017: Journal of Texture Studies
https://www.readbyqxmd.com/read/28418648/a-modular-flow-through-platform-for-spectroelectrochemical-analysis
#20
Tomer Noyhouzer, Michael Edward Snowden, Ushula M Tefashe, Janine Mauzeroll
A new type of flow platform for electrochemical and spectroelectrochemical measurements is presented. Finite element method simulations confirm that the hydrodynamic profile within the device is not turbulent, and provides an analytical platform for the investigation of homogenous kinetics, radical lifetimes and reaction mechanisms. The modular "plug and play" configuration of the platform allows one to carry out electrochemistry and spectroscopy individually or simultaneously. Specific demonstrations of electroanalytical measurements using the flow system platform includes voltammetric analysis of organometallic compounds and quantitative analysis of ascorbic acid in commercial orange juice samples...
April 18, 2017: Analytical Chemistry
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