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https://www.readbyqxmd.com/read/29680501/enhanced-biosynthesis-of-dextransucrase-a-multivariate-approach-to-produce-a-glucosyltransferase-for-biocatalysis-of-sucrose-into-dextran
#1
Syeda Bushra Zafar, Tayyaba Asif, Shah Ali Ul Qader, Afsheen Aman
The current study reported the statistically designed experimental method to enhance the biocatalytic efficacy of dextransucrase from Weissella confusa. Various environmental and nutritional parameters were optimized using multiple responses under submerged fermentation environment. Statistical models were constructed to screen the influence of nine factors on the biocatalysis of dextransucrase. Among them, fermentation time, pH, sucrose and peptone exhibited significant probability (P < 0.05) and considered as substantial constituents in accordance with Plackett-Burman design...
April 19, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29660130/impact-of-listeria-inoculation-and-aerated-steam-sanitization-on-volatile-emissions-of-whole-fresh-cantaloupes
#2
Charles F Forney, Lihua Fan, Gregory S Bezanson, Timothy C Ells, Denyse I LeBlanc, Sherry Fillmore
Rapid methods to detect bacterial pathogens on food and strategies to control them are needed to mitigate consumer risk. This study assessed volatile emissions from whole cantaloupe melons (Cucumis melo) as an indicator of Listeria contamination and in response to steam vapor decontamination. Cantaloupe were inoculated with Listeria innocua, a nonpathogenic surrogate for L. monocytogenes, then exposed to 85 °C steam for 240 s (4 min) followed by rapid chilling and storage for 0, 7, 10, or 14 days at 4, 7, or 10 °C...
April 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29644019/effects-of-incorporation-of-jackfruit-rind-powder-on-chemical-and-functional-properties-of-bread
#3
Reza Felli, Tajul Aris Yang, Wan Nadiah Wan Abdullah, Wahidu Zzaman
Nowadays, there is a rising interest towards consuming health beneficial food products. Bread-as one of the most popular food products-could be improved to 'healthy bread' by addition of ingredients high in protein, dietary fiber and low in calorie. Incorporating Jackfruit rind powder (JRP) as a by-product rich in dietary fiber in bread, could not only provide health beneficial bread products, but also lead to develop an environmental friendly technology by solving the problem of waste disposal of residues...
March 2018: Tropical Life Sciences Research
https://www.readbyqxmd.com/read/29616223/geraniin-protects-high-fat-diet-induced-oxidative-stress-in-sprague-dawley-rats
#4
Alexis Panny Y S Chung, Sunil Gurtu, Srikumar Chakravarthi, Mohanambal Moorthy, Uma D Palanisamy
Geraniin, a hydrolysable polyphenol derived from Nephelium lappaceum L. fruit rind, has been shown to possess significant antioxidant activity in vitro and recently been recognized for its therapeutic potential in metabolic syndrome. This study investigated its antioxidative strength and protective effects on organs in high-fat diet (HFD)-induced rodents. Rats were fed HFD for 6 weeks to induce obesity, followed by 10 and 50 mg/kg of geraniin supplementation for 4 weeks to assess its protective potential...
2018: Frontiers in Nutrition
https://www.readbyqxmd.com/read/29604072/endogenous-microbial-contamination-of-melons-cucumis-melo-from-international-trade-an-underestimated-risk-for-the-consumer
#5
Irene Esteban-Cuesta, Nathalie Drees, Sebastian Ulrich, Peter Stauch, Brigitte Sperner, Karin Schwaiger, Manfred Gareis, Christoph Gottschalk
BACKGROUND: Fruits and vegetables have increasingly been related to foodborne outbreaks. Besides surface contamination, a possible internalization of microorganisms into edible parts of plants during growth has already been observed. In order to examine an actual risk for the consumer, the microbial contamination of rind and pulp of 147 muskmelons from international trade was assessed using cultural and biochemical methods, PCR and MALDI-TOF MS. RESULTS: 100 % of the rind samples (3...
March 31, 2018: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29597009/microrna528-affects-lodging-resistance-of-maize-by-regulating-lignin-biosynthesis-under-nitrogen-luxury-conditions
#6
Qing Sun, Xiaogang Liu, Juan Yang, Wenwen Liu, Qingguo Du, Hongqiu Wang, Chunxiang Fu, Wen-Xue Li
Lodging under N-luxury conditions substantially reduces crop yield and seed quality. However, the molecular mechanisms of plant lodging resistance remain largely unclear, especially in maize. We report here that the expression of ZmmiR528, a monocot-specific miRNA, is induced by nitrogen (N) luxury but reduced by N deficiency. Thioacidolysis and acetyl bromide (AcBr) analysis showed that N luxury significantly reduced the generation of H, G, and S monomers and the total lignin content of maize shoots. We further demonstrated that ZmLACCASE3 (ZmLAC3) and ZmLACCASE5 (ZmLAC5) are the targets of ZmmiR528...
March 26, 2018: Molecular Plant
https://www.readbyqxmd.com/read/29572151/fire-resistant-behaviour-of-cellulosic-textile-functionalized-with-wastage-plant-bio-molecules-a-comparative-scientific-report
#7
Santanu Basak, S Wazed Ali
Three different wastage plant based bio-molecules named banana peel powder (Musa acuminata) (BPP), coconut shell (Cocos nucifera) extract (CSE) and pomegranate rind (Punica granatum) extract (PRE) have been explored as fire resistant material on the cellulosic polymer (cotton fabric). To this end, extracts have been applied to the cotton fabric in different concentration at elevated temperature for specific time period. Treated cotton fabric showed 6 (BPP), 8.5 (CSE) and 12 (PRE) times lower vertical burning rate compared to the control cotton fabric...
March 20, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29571208/halocur%C3%A2-%C3%A2-jetzt-auch-als-nachf%C3%A3-llflasche
#8
(no author information available yet)
No abstract text is available yet for this article.
February 2018: Tierärztliche Praxis. Ausgabe G, Grosstiere/Nutztiere
https://www.readbyqxmd.com/read/29564104/delmopinol-hydrochloride-reduces-salmonella-on-cantaloupe-surfaces
#9
Raúl O Saucedo-Alderete, Joseph D Eifert, Renee R Boyer, Robert C Williams, Gregory E Welbaum
Since the surfaces of cantaloupes are highly rough or irregular, bacteria can easily attach and become difficult to remove. Appropriate postharvest washing and sanitizing procedures can help control Salmonella and other pathogens on cantaloupe or other melons during postharvest operations. Delmopinol hydrochloride (delmopinol) is a cationic surfactant that is effective for treating and preventing gingivitis and periodontitis. The application of delmopinol to two cantaloupe cultivars was evaluated for reducing the level of inoculated Salmonella ...
March 2018: Food Science & Nutrition
https://www.readbyqxmd.com/read/29564093/bioprospecting-of-powdered-pineapple-rind-as-an-organic-supplement-of-composted-sawdust-for-pleurotus-ostreatus-mushroom-cultivation
#10
Deborah L Narh Mensah, Peter Addo, Matilda Dzomeku, Mary Obodai
Pineapple rind is a by-product of the pineapple processing industry and contains nutrients and other compounds which must be utilized as a bioresource for socio-economic benefits while preventing the potential problems of improper agroindustrial biomass disposal methods. Pleurotus ostreatus is an edible oyster mushroom with medicinal properties and can be cultivated on various agroindustrial biomass, including sawdust containing supplements. Pineapple rind was powdered and used as a supplement of composted sawdust at 2%, 5%, 10%, 12%, 15%, and 20% (w/w) on dry weight basis...
March 2018: Food Science & Nutrition
https://www.readbyqxmd.com/read/29550118/microbial-community-dynamics-of-a-blue-veined-raw-milk-cheese-from-the-united-kingdom
#11
Dewi Yunita, Christine E R Dodd
A commercial blue-veined cheese made from unpasteurized milk was examined by conventional culturing and PCR denaturing gradient gel electrophoresis analysis of the bacterial community 16S rRNA genes using 3 primer sets, V3, V4V5, and V6V8. Genomic DNA for amplification was extracted directly from raw milk, starter culture, cheese at different stages of production, fully ripened cheese, and from the cultured cells grown on various media. The outer rind was sampled separately from the inner white core and blue veins...
March 14, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29530471/whiptail-stingray-injury
#12
Simon Laurent, Olivier Martinet, Helene Cuq, Alain Rind, Philippe Durasnel, Claire Lenne, Renaud Blondé
Stingray injuries to the chest are rare but potentially life-threatening. They may occur in remote areas where advanced emergency healthcare services are unavailable. We describe the case of a 24-year-old man with tension pneumothorax due to a Himantura fai stingray injury to the left chest. The chest wound was unremarkable, with no external bleeding or evidence of a foreign body. Decompression was performed at the scene with an improvised knife procedure and a hollow writing pen, which served as a chest tube...
March 9, 2018: Wilderness & Environmental Medicine
https://www.readbyqxmd.com/read/29526212/inactivation-of-escherichia-coli-o157-h7-and-salmonella-during-washing-of-contaminated-gloves-in-levulinic-acid-and-sodium-dodecyl-sulfate-solutions
#13
Marilyn C Erickson, Jye-Yin Liao, Mussie Y Habteselassie, Jennifer L Cannon
Field workers often wear gloves harvesting ready-to-eat produce; however, fields are not sterile environments and gloves may become contaminated numerous times during a working shift. This study explored the potential for inactivation of Escherichia coli O157:H7 and Salmonella when contaminated gloves were washed in levulinic acid (LV) and sodium dodecyl sulfate (SDS) solutions. Washing nitrile gloves with increasing concentrations of LV above 1.0% led to a decreased prevalence of glove contamination by Salmonella (P = 0...
August 2018: Food Microbiology
https://www.readbyqxmd.com/read/29513104/evaluation-of-hot-water-gaseous-chlorine-dioxide-and-chlorine-treatments-in-combination-with-an-edible-coating-for-enhancing-safety-quality-and-shelf-life-of-fresh-cut-cantaloupes
#14
Cristina Alicea, Bassam A Annous, Daiza P Mendez, Angela Burke, Lynette E Orellana
Fresh-cut cantaloupes have been implicated in numerous foodborne outbreaks of salmonellosis. Commercial aqueous wash treatments are limited in their ability to inactivate Salmonella enterica. Our objective was to evaluate the efficacy of hot water, gaseous chlorine dioxide, and chlorine on enhancing microbial safety and sensory qualities of fresh-cut cantaloupes. Cantaloupes were inoculated with an S. enterica cocktail (serovars Michigan, Mbandaka, and Poona) and treated with chlorine (200 ppm of free chlorine) for 40 min, 5 mg/L gaseous chlorine dioxide for 4...
April 2018: Journal of Food Protection
https://www.readbyqxmd.com/read/29488631/aerated-steam-sanitization-of-whole-fresh-cantaloupes-reduces-and-controls-rind-associated-listeria-but-enhances-fruit-susceptibility-to-secondary-colonization
#15
Greg S Bezanson, Timothy C Ells, Lihua Fan, Charles F Forney, Denyse I LeBlanc
Recent bacterial illnesses and outbreaks associated with the consumption of fresh and fresh-cut fruit and vegetables emphasize the need to supply produce that is microbiologically safe while retaining its quality and nutrient value. We assessed the capacity of aerated steam to reduce initial levels and control the posttreatment proliferation of a 4-strain mixture of Listeria innocua, a surrogate for L. monocytogenes, and microflora native to the rind of whole cantaloupes. Studies were conducted at the pilot-scale level by passing deliberately contaminated melons through a prototype stainless-steel, continuous-feed heating device...
February 28, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29449871/the-elastic-modulus-for-maize-stems
#16
Loay Al-Zube, Wenhuan Sun, Daniel Robertson, Douglas Cook
Background: Stalk lodging is a serious challenge in the production of maize and sorghum. A comprehensive understanding of lodging will likely require accurate characterizations of the mechanical properties of such plants. One of the most important mechanical properties for structural analysis of bending is the modulus of elasticity. The purpose of this study was to measure the modulus of elasticity of dry, mature maize rind tissues using three different loading modes ( bending , compression and tensile ), and to determine the accuracy and reliability of each test method...
2018: Plant Methods
https://www.readbyqxmd.com/read/29448137/differential-metabolism-of-l-phenylalanine-in-the-formation-of-aromatic-volatiles-in-melon-cucumis-melo-l-fruit
#17
Itay Gonda, Rachel Davidovich-Rikanati, Einat Bar, Shery Lev, Pliaa Jhirad, Yuval Meshulam, Guy Wissotsky, Vitaly Portnoy, Joseph Burger, Arthur A Schaffer, Yaakov Tadmor, James J Giovannoni, Zhangjun Fei, Aaron Fait, Nurit Katzir, Efraim Lewinsohn
Studies on the active pathways and the genes involved in the biosynthesis of L-phenylalanine-derived volatiles in fleshy fruits are sparse. Melon fruit rinds converted stable-isotope labeled L-phe into more than 20 volatiles. Phenylpropanes, phenylpropenes and benzenoids are apparently produced via the well-known phenylpropanoid pathway involving phenylalanine ammonia lyase (PAL) and being (E)-cinnamic acid a key intermediate. Phenethyl derivatives seemed to be derived from L-phe via a separate biosynthetic route not involving (E)-cinnamic acid and PAL...
February 12, 2018: Phytochemistry
https://www.readbyqxmd.com/read/29446669/segmental-arterial-mediolysis-abdominal-imaging-of-and-disease-course-in-111-patients
#18
Sailen G Naidu, Christine O Menias, Rahmi Oklu, Robert S Hines, Kinan Alhalabi, Gerges Makar, Fadi E Shamoun, Stanislav Henkin, Robert D McBane
OBJECTIVE: The purpose of this study is to identify the imaging characteristics of segmental arterial mediolysis (SAM) at presentation and establish the longitudinal course of disease. MATERIALS AND METHODS: We retrospectively identified patients with SAM at a single institution from 2000 through 2015. Diagnosis was based on published guidelines with multidisciplinary consensus. Imaging studies obtained at initial evaluation were reviewed to evaluate imaging findings and vascular territory distribution...
April 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29389865/the-listeria-monocytogenes-key-virulence-determinants-hly-and-prfa-are-involved-in-biofilm-formation-and-aggregation-but-not-colonization-of-fresh-produce
#19
Robert Price, Victor Jayeola, Jeffrey Niedermeyer, Cameron Parsons, Sophia Kathariou
Listeria monocytogenes has been extensively studied as a model facultative intracellular pathogen. While the roles of major virulence factors in host-pathogen interactions have been extensively characterized, recent work suggests that some of these factors can also contribute to environmental proliferation of this pathogen. In this study, we characterized two non-hemolytic transposon mutants of strain 2011L-2858 (serotype 1/2b), implicated in the 2011 listeriosis outbreak via whole cantaloupe, for their capacity to form biofilms on polystyrene, aggregate, and colonize cantaloupe rind...
February 1, 2018: Pathogens
https://www.readbyqxmd.com/read/29378729/atrial-fibrillation-and-cause-specific-risks-of-pulmonary-embolism-and-ischemic-stroke
#20
Erin M Hald, Ludvig B Rinde, Maja-Lisa Løchen, Ellisiv B Mathiesen, Tom Wilsgaard, Inger Njølstad, Sigrid K Brækkan, John-Bjarne Hansen
BACKGROUND: Atrial fibrillation (AF) is a well-established risk factor for ischemic stroke (IS). Emerging evidence also indicates an association between AF and pulmonary embolism (PE). Because IS may potentially mediate the observed risk of PE in AF, we aimed to assess the impact of AF on the cause-specific risks of PE and IS in a large cohort recruited from the general population. METHODS AND RESULTS: We observed 29 842 participants from 3 surveys of the Tromsø study (inclusion in 1994-1995, 2001-2002, and 2007-2008) to the end of 2012...
January 29, 2018: Journal of the American Heart Association
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