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https://www.readbyqxmd.com/read/28319798/cold-plasma-activated-hydrogen-peroxide-aerosol-inactivates-escherichia-coli-o157-h7-salmonella-typhimurium-and-listeria-innocua-and-maintains-quality-of-grape-tomato-spinach-and-cantaloupe
#1
Yunbin Jiang, Kimberly Sokorai, Georgios Pyrgiotakis, Philip Demokritou, Xihong Li, Sudarsan Mukhopadhyay, Tony Jin, Xuetong Fan
The purpose of this study was to investigate the efficacy of aerosolized hydrogen peroxide in inactivating bacteria and maintaining quality of grape tomatoes, baby spinach leaves and cantaloupes. Stem scars and smooth surfaces of tomatoes, spinach leaves, and cantaloupe rinds, inoculated with Escherichia coli O157:H7, Salmonella Typhimurium and Listeria innocua, were treated for 45s followed by additional 30min dwell time with hydrogen peroxide (7.8%) aerosols activated by atmospheric cold plasma. Non-inoculated samples were used to study the effects on quality and native microflora populations...
March 10, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28316627/green-synthesis-and-characterization-of-silver-nanoparticles-using-citrullus-lanatus-fruit-rind-extract
#2
Michael Ndikau, Naumih M Noah, Dickson M Andala, Eric Masika
The wide-scale application of silver nanoparticles (AgNPs) in areas such as chemical sensing, nanomedicine, and electronics has led to their increased demand. Current methods of AgNPs synthesis involve the use of hazardous reagents and toxic solvents. There is a need for the development of new methods of synthesizing AgNPs that use environmentally safe reagents and solvents. This work reports a green method where silver nanoparticles (AgNPs) were synthesized using silver nitrate and the aqueous extract of Citrullus lanatus fruit rind as the reductant and the capping agent...
2017: International Journal of Analytical Chemistry
https://www.readbyqxmd.com/read/28274409/unraveling-the-inhibition-mechanism-of-cyanidin-3-sophoroside-on-polyphenol-oxidase-and-its-effect-on-enzymatic-browning-of-apples
#3
Hridya Hemachandran, Amrita Anantharaman, Sankari Mohan, Gopalakrishnan Mohan, D Thirumal Kumar, Diksha Dey, Drishty Kumar, Priyanka Dey, Amrita Choudhury, C George Priya Doss, Siva Ramamoorthy
The hunt for anti-browning agents in the food and agricultural industries aims to minimize nutritional loss and prolong post harvest storage. In the present study, the effect of cyanidin-3-sophoroside (CS) from Garcinia mangostana rind, on polyphenol oxidase (PPO) activity was investigated. The non-competitive inhibition mode of CS was determined by Lineweaver Burk plot. CS forms a ground-state complex by quenching the intrinsic fluorescence of PPO. The static quenching was temperature-dependent with an activation energy of 4...
July 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28272919/in-situ-generation-of-chlorine-dioxide-for-surface-decontamination-of-produce
#4
Cheng-An Hwang, Lihan Huang, Vivian Chi-Hua Wu
Fresh fruits and vegetables are frequently contaminated with bacterial pathogens and implicated in foodborne illnesses. The objective of this study was to develop a unique surface decontamination method for produce using sodium chlorite and an acid in a sequential treatment. The surfaces of cantaloupe rinds, peels of cucumbers, stem scars of grape tomatoes, and leaves of baby spinach were inoculated with Salmonella or Listeria monocytogenes at 5 to 6 log CFU/g, submerged in 1.6 to 4% sodium chlorite solutions for 10 or 30 min, dried for 20 min, and then soaked in 6 mM hydrogen chloride (HCl) for 10 or 30 min and dried for 20 min...
March 8, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28269269/suitability-of-nitinol-electrodes-in-neural-prostheses-such-as-endovascular-neural-interfaces
#5
Yan T Wong, Nicholas L Opie, Sam E John, Giulia Gerboni, Gil S Rind, Stephen M Ronayne, Kate E Fox, Thomas J Oxley, David B Grayden
A major challenge facing neural prostheses is the development of electrodes that are well tolerated by the brain and body. A novel way to circumvent the need to perform an invasive craniotomy and penetration of the blood-brain barrier to implant electrodes, is to guide electrodes up into the cerebral veins and place electrodes on the vessel walls adjacent to neuronal populations. To aid in the development of these stent based devices, microelectrodes manufactured from Nitinol would allow electrodes to be implanted via a catheter and then once deployed, alter their shape to conform to the vessel walls...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28269267/feasibility-of-a-chronic-minimally-invasive-endovascular-neural-interface
#6
Nicholas L Opie, Gil S Rind, Sam E John, Stephen M Ronayne, David B Grayden, Anthony N Burkitt, Clive N May, Terence J O'Brien, Thomas J Oxley
Development of a neural interface that can be implanted without risky, open brain surgery will increase the safety and viability of chronic neural recording arrays. We have developed a minimally invasive surgical procedure and an endovascular electrode-array that can be delivered to overlie the cortex through blood vessels. Here, we describe feasibility of the endovascular interface through electrode viability, recording potential and safety. Electrochemical impedance spectroscopy demonstrated that electrode impedance was stable over 91 days and low frequency phase could be used to infer electrode incorporation into the vessel wall...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28256863/reversible-switching-of-cooperating-replicators
#7
Georg C Urtel, Thomas Rind, Dieter Braun
How can molecules with short lifetimes preserve their information over millions of years? For evolution to occur, information-carrying molecules have to replicate before they degrade. Our experiments reveal a robust, reversible cooperation mechanism in oligonucleotide replication. Two inherently slow replicating hairpin molecules can transfer their information to fast crossbreed replicators that outgrow the hairpins. The reverse is also possible. When one replication initiation site is missing, single hairpins reemerge from the crossbreed...
February 17, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28255944/fatty-rind-of-intramuscular-soft-tissue-tumors-of-the-extremity-is-it-different-from-the-split-fat-sign
#8
Jinkyeong Sung, Jee-Young Kim
OBJECTIVE: To analyze intramuscular soft-tissue tumors with fatty rind, and to evaluate the difference between fatty rind and split fat sign on magnetic resonance imaging (MRI). MATERIALS AND METHODS: We retrospectively analyzed 50 pathologically confirmed intramuscular masses on MRI. We evaluated the distribution and shape of fatty rind and muscle atrophy. RESULTS: Fatty rind was found more frequently in benign lesions (80% [36 out of 45]) compared with malignant lesions (25% [1 out of 5]; P = 0...
March 2, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28241761/antimalarial-activity-of-garcinia-mangostana-l-rind-and-its-synergistic-effect-with-artemisinin-in-vitro
#9
Susy Tjahjani
BACKGROUND: Malaria especially falciparum malaria still causes high morbidity and mortality in tropical countries. Several factors have been linked to this situation and the most important one is the rapid spread of parasite resistance to the currently available antimalarials, including artemisinin. Artemisinin is the main component of the currently recommended antimalarial, artemisinin based combination therapy (ACT), and it is a free radical generating antimalarial. Garcinia mangostana L (mangosteen) rind contain a lot of xanthone compounds acting as an antioxidant and exhibited antimalarial activity...
February 28, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28228766/cell-wall-remodeling-in-abscission-zone-cells-during-ethylene-promoted-fruit-abscission-in-citrus
#10
Paz Merelo, Javier Agustí, Vicent Arbona, Mário L Costa, Leandro H Estornell, Aurelio Gómez-Cadenas, Silvia Coimbra, María D Gómez, Miguel A Pérez-Amador, Concha Domingo, Manuel Talón, Francisco R Tadeo
Abscission is a cell separation process by which plants can shed organs such as fruits, leaves, or flowers. The process takes place in specific locations termed abscission zones. In fruit crops like citrus, fruit abscission represents a high percentage of annual yield losses. Thus, understanding the molecular regulation of abscission is of capital relevance to control production. To identify genes preferentially expressed within the citrus fruit abscission zone (AZ-C), we performed a comparative transcriptomics assay at the cell type resolution level between the AZ-C and adjacent fruit rind cells (non-abscising tissue) during ethylene-promoted abscission...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28227503/suitability-of-nitinol-electrodes-in-neural-prostheses-such-as-endovascular-neural-interfaces
#11
Yan T Wong, Nicholas L Opie, Sam E John, Giulia Gerboni, Gil S Rind, Stephen M Ronayne, Kate E Fox, Thomas J Oxley, David B Grayden, Yan T Wong, Nicholas L Opie, Sam E John, Giulia Gerboni, Gil S Rind, Stephen M Ronayne, Kate E Fox, Thomas J Oxley, David B Grayden, Sam E John, Stephen M Ronayne, David B Grayden, Nicholas L Opie, Kate E Fox, Giulia Gerboni, Thomas J Oxley, Yan T Wong, Gil S Rind
A major challenge facing neural prostheses is the development of electrodes that are well tolerated by the brain and body. A novel way to circumvent the need to perform an invasive craniotomy and penetration of the blood-brain barrier to implant electrodes, is to guide electrodes up into the cerebral veins and place electrodes on the vessel walls adjacent to neuronal populations. To aid in the development of these stent based devices, microelectrodes manufactured from Nitinol would allow electrodes to be implanted via a catheter and then once deployed, alter their shape to conform to the vessel walls...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227501/feasibility-of-a-chronic-minimally-invasive-endovascular-neural-interface
#12
Nicholas L Opie, Gil S Rind, Sam E John, Stephen M Ronayne, David B Grayden, Anthony N Burkitt, Clive N May, Terence J O'Brien, Thomas J Oxley, Nicholas L Opie, Gil S Rind, Sam E John, Stephen M Ronayne, David B Grayden, Anthony N Burkitt, Clive N May, Terence J O'Brien, Thomas J Oxley, Sam E John, Stephen M Ronayne, David B Grayden, Nicholas L Opie, Anthony N Burkitt, Terence J O'Brien, Clive N May, Thomas J Oxley, Gil S Rind
Development of a neural interface that can be implanted without risky, open brain surgery will increase the safety and viability of chronic neural recording arrays. We have developed a minimally invasive surgical procedure and an endovascular electrode-array that can be delivered to overlie the cortex through blood vessels. Here, we describe feasibility of the endovascular interface through electrode viability, recording potential and safety. Electrochemical impedance spectroscopy demonstrated that electrode impedance was stable over 91 days and low frequency phase could be used to infer electrode incorporation into the vessel wall...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28213018/pathogen-biofilm-formation-on-cantaloupe-surface-and-its-impact-on-the-antibacterial-effect-of-lauroyl-arginate-ethyl
#13
Yezhi Fu, Amanda J Deering, Arun K Bhunia, Yuan Yao
Pathogen biofilm at fruit surface may pose a particular risk to food safety. In this study, the biofilms of Listeria monocytogenes V7 and Salmonella enterica serovar Typhimurium ATCC 13311 on cantaloupe fruit surface were visualized, and the resistance of biofilms against lauroyl arginate ethyl (LAE, an antibacterial compound) was evaluated. Each bacterium was inoculated on isolated cantaloupe rind surfaces at 10(5)-10(6) CFU/cm(2) and after incubation for 2, 12, 24, and 48 h, the surfaces were imaged using cryo-scanning electron microscopy (Cryo-SEM)...
June 2017: Food Microbiology
https://www.readbyqxmd.com/read/28211296/recommendations-for-the-medical-management-of-chronic-venous-disease-the-role-of-micronized-purified-flavanoid-fraction-mpff
#14
Ronald Bush, Anthony Comerota, Mark Meissner, Joseph D Raffetto, Steven R Hahn, Katherine Freeman
Scope A systematic review of the clinical literature concerning medical management of chronic venous disease with the venoactive therapy Micronized Purified Flavonoid Fraction was conducted in addition to an investigation of the hemodynamics and mechanism of chronic venous disease. Methods The systematic review of the literature focused on the use of Micronized Purified Flavonoid Fraction (diosmin) which has recently become available in the US, in the management of chronic venous disease. The primary goal was to assess the level of evidence of the role of Micronized Purified Flavonoid Fraction in the healing of ulcers, and secondarily on the improvement of the symptoms of chronic venous disease such as edema...
April 2017: Phlebology
https://www.readbyqxmd.com/read/28192137/a-strategic-approach-for-direct-recovery-and-stabilization-of-fusarium-sp-ict-sac1-cutinase-from-solid-state-fermented-broth-by-carrier-free-cross-linked-enzyme-aggregates
#15
Sandeep A Chaudhari, Rekha S Singhal
The major hurdles in commercial exploitation of cutinase (having both esterolytic and lipolytic activities) with potent industrial applications are its high production cost, operational instability and reusability. Although commercially available in immobilized form, its immobilization process (synthesis of support/carrier) makes it expensive. Herein we tried to address multiple issues of production cost, stability, and reusability, associated with cutinase. Waste watermelon rinds, an agroindustrial waste was considered as a cheap support for solid state fermentation (SSF) for cutinase production by newly isolated Fusarium sp...
May 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28190542/principles-of-effective-communication-with-patients-who-have-intellectual-disability-among-primary-care-physicians
#16
S Werner, S Yalon-Chamovitz, M Tenne Rinde, A D Heymann
OBJECTIVE: Examine physicians' implementation of effective communication principles with patients with intellectual disabilities (ID) and its predictors. METHODS: Focus groups helped construct a quantitative questionnaire. The questionnaire (completed by 440 physicians) examined utilization of effective communication principles, attitudes toward individuals with ID, subjective knowledge and number of patients with ID. RESULTS: Subjective knowledge of ID and more patients with ID increased utilization of effective communication principles...
February 2, 2017: Patient Education and Counseling
https://www.readbyqxmd.com/read/28176141/myocardial-infarction-and-future-risk-of-cancer-in-the-general-population-the-troms%C3%A3-study
#17
Ludvig B Rinde, Birgit Småbrekke, Erin M Hald, Ellen E Brodin, Inger Njølstad, Ellisiv B Mathiesen, Maja-Lisa Løchen, Tom Wilsgaard, Sigrid K Brækkan, Anders Vik, John-Bjarne Hansen
The association between myocardial infarction (MI) and future risk of incident cancer is scarcely investigated. Therefore, we aimed to study the risk of cancer after a first time MI in a large cohort recruited from a general population. Participants in a large population-based study without a previous history of MI or cancer (n = 28,763) were included and followed from baseline to date of cancer, death, migration or study end. Crude incidence rates (IRs) and hazard ratios (HRs) for cancer after MI were calculated...
February 7, 2017: European Journal of Epidemiology
https://www.readbyqxmd.com/read/28173798/spasmogenic-and-spasmolytic-activity-of-rind-of-punica-granatum-linn
#18
Niaz Ali, Ayesha Jamil, Syed Wadood Ali Shah, Ismail Shah, Ghayour Ahmed
BACKGROUND: Rind of Punica granatum is traditionally used in treatment of abdominal cramps and various GIT disorders. So far spasmolytic activity of rind of Punica granatum has been reported using in vitro model. However, its mode of action is not explored yet. Therefore, the current work describes the possible mode of action for spasmolytic activity of methanolic extract of rind of Punica granatum (Pg. Cr). Acute toxicity study is also performed to determine its safe dose range. METHODS: Rind of Punica granatum was subjected to shade drying...
February 7, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28169002/the-c8-side-chain-is-one-of-the-key-functional-group-of-garcinol-for-its-anti-cancer-effects
#19
Xin-Ying Zhou, Jing Cao, Chao-Ming Han, Shu-Wen Li, Chen Zhang, Yin-Duan Du, Qian-Qian Zhou, Xin-Yan Zhang, Xin Chen
Garcinol from the fruit rind of Garcinia indica shows anti-carcinogenic and anti-inflammatory properties, but its mechanism and key functional groups were still need to be identified. Our previous computer modeling suggested that the C8 side chain of Garcinol is so large that it may influence the bioactivity of the compound. 8-Me Garcinol, a derivative of Garcinol in which the bulky side chain at the C8 position of Garcinol is replaced with a much smaller methyl group, was synthesized through a 12-step procedure starting from 1,3-cyclohexanedione...
January 22, 2017: Bioorganic Chemistry
https://www.readbyqxmd.com/read/28129739/itraq-based-protein-profiling-and-fruit-quality-changes-at-different-development-stages-of-oriental-melon
#20
Xiaoou Guo, Jingjing Xu, Xiaohui Cui, Hao Chen, Hongyan Qi
BACKGROUND: Oriental melon is one of the most popular crops for its nutritional and flavour quality. Components that determine melon quality, such as sugar, colour, texture, flavour and aroma, among other factors, accumulate in different developmental stages. Thus, correlating the proteomic profiles with the biochemical and physiological changes occurring in the oriental melon is very important for advancing our understanding of oriental melon quality in the ripening processes. RESULTS: iTRAQ-based protein profiling was conducted on 'YuMeiren' oriental melon fruit at different developmental stages...
January 28, 2017: BMC Plant Biology
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