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https://www.readbyqxmd.com/read/28070926/identification-and-implication-of-an-allergenic-pr-10-protein-from-walnut-in-birch-pollen-associated-walnut-allergy
#1
Andrea Wangorsch, Annette Jamin, Jonas Lidholm, Nora Gräni, Claudia Lang, Barbara Ballmer-Weber, Stefan Vieths, Stephan Scheurer
SCOPE: English walnut (Juglans regia) belongs to the most important allergenic tree nuts. Co-sensitization with birch (Betula verrucosa) pollen has been reported. We aimed to identify a walnut allergen homologous to the major birch pollen allergen Bet v 1. METHODS AND RESULTS: A cDNA encoding a Bet v 1-homologous allergen (Jug r 5) in walnut kernels was cloned by RT-PCR. Jug r 5 was expressed in E.coli, purified by column chromatography and characterized by CD-spectroscopy...
January 9, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28000512/developmental-role-of-phenylalanine-ammonia-lyase-pal-and-cinnamate-4-hydroxylase-c4h-genes-during-adventitious-rooting-of-juglans-regia-l-microshoots
#2
Monireh Cheniany, Ali Ganjeali
Phenylalanine-ammonia-lyase and cinnamate-4-hydroxylase play important role in the phenylpropanoid pathway, which produces many biologically important secondary metabolites participating in normal plant development. Flavonol quercetin is the main representant of these compounds that has been identified in numerous Juglans spp. In this survey, the developmental expression patterns of PAL and C4H genes during in vitro rooting of two walnut cultivars 'Sunland' and 'Howard' was examined by RT-PCR. To understand the potential role in rooting, the changing pattern of endogenous content of quercetin was also analyzed by HPLC...
December 2016: Acta Biologica Hungarica
https://www.readbyqxmd.com/read/27979271/fast-determination-of-bioactive-phytic-acid-and-pyrophosphate-in-walnuts-using-microwave-accelerated-extraction
#3
Tong Liu, Liu He, Manuel Valiente, Montserrat López-Mesas
Bioactive compounds phytic acid (IP6) and pyrophosphate (PPi) are minor components of walnuts with the ability of being inhibitors of urolithiasis, among others. Since simultaneous analysis of IP6 and PPi have known drawbacks, a new method to determine their content in walnuts has been developed with emphasis on their extraction from walnuts by microwave-assisted extraction (MAE). Acid content of extracting solvent, extraction time and temperature were optimized. After extraction, compounds were purified by selective adsorption/desorption on an anion exchange solid phase extraction and analyzed by inductive coupled plasma/mass spectrometry...
April 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27979196/b-vitamins-carotenoids-and-%C3%AE-%C3%AE-tocopherol-in-raw-and-roasted-nuts
#4
Wolfgang Stuetz, Wiebke Schlörmann, Michael Glei
The concentrations of B-vitamins, carotenoids and tocopherols in nuts may differ between species and might be influenced by roasting. Thiamine, riboflavin, pyridoxine, lutein, zeaxanthin, β-carotene and α-/γ-tocopherol were determined in different varieties of raw and roasted nuts using HPLC (fluorescence/UV-vis detection). The analysis revealed remarkable concentrations of thiamine and pyridoxine in pistachios (57%, 79% of the recommended daily intake/100g (RDI), respectively) and riboflavin in almonds (119% of the RDI)...
April 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27976024/evaluation-of-antihyperlipidemic-activity-of-aqueous-extract-of-nigerian-walnut-plukenetia-conophora-on-induced-hyperlipidemic-rats
#5
A O Glory, A N Modupe, B J Mfon
No abstract text is available yet for this article.
December 2016: Planta Medica
https://www.readbyqxmd.com/read/27975743/antioxidant-activities-and-useful-components-of-korean-walnut-juglans-sinensis-kernels
#6
Y Park, S H Kim, J H Kim
No abstract text is available yet for this article.
December 2016: Planta Medica
https://www.readbyqxmd.com/read/27959877/synthesis-of-walnut-shell-modified-with-titanium-dioxide-and-zinc-oxide-nanoparticles-for-efficient-removal-of-humic-acid-from-aqueous-solutions
#7
Ali Naghizadeh, Habibeh Shahabi, Fatemeh Ghasemi, Ahmad Zarei
The main aim of this research was to study the efficiency of modified walnut shell with titanium dioxide (TiO2) and zinc oxide (ZnO) in the adsorption of humic acid from aqueous solutions. This experimental study was carried out in a batch condition to determine the effects of factors such as contact time, pH, humic acid concentration, dose of adsorbents (raw walnut shell, modified walnut shell with TiO2 and ZnO) on the removal efficiency of humic acid. pHzpc of raw walnut shell, walnut shell modified with TiO2 and walnut shell modified with ZnO were 7...
December 2016: Journal of Water and Health
https://www.readbyqxmd.com/read/27936684/purification-and-characterization-of-a-black-walnut-juglans-nigra-allergen-jug-n-4
#8
Yu-Zhu Zhang, Wen-Xian Du, Yuting Fan, Jiang Yi, Shu-Chen Lyu, Kari C Nadeau, Andrew L Thomas, Tara McHugh
Tree nuts as a group cause a significant number of fatal anaphylactic reactions to foods. Walnuts (Juglans spp.) are one of the leading causes of allergic reactions to tree nuts in the U.S. and Japan. The purpose of this study was to purify and characterize potential food allergens from black walnut. Here, we report the isolation of the black walnuts allergen Jug n 4 (an 11S globulin) by ammonium sulfate precipitation, hydrophobic interaction, and size exclusion chromatography. Reducing SDS-PAGE analysis indicated that purified Jug n 4 consists of three major bands...
January 18, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27933496/green-synthesis-of-pd-walnut-shell-nanocomposite-using-equisetum-arvense-l-leaf-extract-and-its-application-for-the-reduction-of-4-nitrophenol-and-organic-dyes-in-a-very-short-time
#9
Maryam Bordbar, Nafiseh Mortazavimanesh
Palladium nanoparticles (PdNPs) have been immobilized on the surface of walnut shell powder using Equisetum arvense L. leaf extract as reducing and stabilizing agents in this work. FT-IR spectroscopy, UV-Vis spectroscopy, photoluminescence spectroscopy, X-ray diffraction (XRD) pattern, field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy (EDS), and transmission electron microscopy (TEM) have been used in the characterization of the nanocomposites thus prepared. High catalytic activity was shown by these nanocomposites in the reduction of different dyes...
December 8, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27920788/vegetative-and-adaptive-traits-predict-different-outcomes-for-restoration-using-hybrids
#10
Philip A Crystal, Nathanael I Lichti, Keith E Woeste, Douglass F Jacobs
Hybridization has been implicated as a driver of speciation, extinction, and invasiveness, but can also provide resistant breeding stock following epidemics. However, evaluating the appropriateness of hybrids for use in restoration programs is difficult. Past the F1 generation, the proportion of a progenitor's genome can vary widely, as can the combinations of parental genomes. Detailed genetic analysis can reveal this information, but cannot expose phenotypic alterations due to heterosis, transgressive traits, or changes in metabolism or development...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27899931/melatonin-in-plants-and-plant-culture-systems-variability-stability-and-efficient-quantification
#11
Lauren A E Erland, Abhishek Chattopadhyay, Andrew Maxwell P Jones, Praveen K Saxena
Despite growing evidence of the importance of melatonin and serotonin in the plant life, there is still much debate over the stability of melatonin, with extraction and analysis methods varying greatly from lab to lab with respect to time, temperature, light levels, extraction solvents, and mechanical disruption. The variability in methodology has created conflicting results that confound the comparison of studies to determine the role of melatonin in plant physiology. We here describe a fully validated method for the quantification of melatonin, serotonin and their biosynthetic precursors: tryptophan, tryptamine and N-acetylserotonin by liquid chromatography single quadrupole mass spectrometry (LC-MS) in diverse plant species and tissues...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27899257/juglanin-induces-apoptosis-and-autophagy-in-human-breast-cancer-progression-via-ros-jnk-promotion
#12
Zhu-Lei Sun, Jin-Long Dong, Jiang Wu
Breast cancer is one of the most common primary malignant tumors of among women, the long-term survival of which has stagnated in the past decades. Juglanin as a natural production mainly extracted from green walnut husks of Juglans mandshurica has been defined as the functional composition among a series of compounds. It showed powerful protective effect in various diseases by inhibiting inflammation and tumor cells growth. However, the effect of juglanin on human breast cancer and the underlying mechanisms remains to be elucidated...
January 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27898796/sorption-of-pharmaceuticals-heavy-metals-and-herbicides-to-biochar-in-the-presence-of-biosolids
#13
Daniel A Bair, Fungai N D Mukome, Inna E Popova, Temitope A Ogunyoku, Allie Jefferson, Daoyuan Wang, Sarah C Hafner, Thomas M Young, Sanjai J Parikh
Agricultural practices are increasingly incorporating recycled waste materials, such as biosolids, to provide plant nutrients and enhance soil functions. Although biosolids provide benefits to soil, municipal wastewater treatment plants receive pharmaceuticals and heavy metals that can accumulate in biosolids, and land application of biosolids can transfer these contaminants to the soil. Environmental exposure of these contaminants may adversely affect wildlife, disrupt microbial communities, detrimentally affect human health through long-term exposure, and cause the proliferation of antibiotic-resistant bacteria...
November 2016: Journal of Environmental Quality
https://www.readbyqxmd.com/read/27892597/a-multi-center-study-on-anaphylaxis-caused-by-peanut-tree-nuts-and-seeds-in-children-and-adolescents
#14
Kyunguk Jeong, So-Yeon Lee, Kangmo Ahn, Jihyun Kim, Hae-Ran Lee, Dong In Suh, Bok-Yang Pyun, Taek Ki Min, Ji-Won Kwon, Kyu-Earn Kim, Kyung Won Kim, Myung Hyun Sohn, Yoon Hee Kim, Tae Won Song, Jung Hyun Kwon, You Hoon Jeon, Hyung Young Kim, Jeong Hee Kim, Young Min Ahn, Sooyoung Lee
Peanut (PN) and tree nuts (TNs) are common causes of anaphylaxis in Western countries but no information is available in Korea. To feature clinical characteristics of anaphylaxis caused by PN, TNs, and seeds, a retrospective medical record review was performed in 14 university hospitals in Korea (2009-2013).One hundred and twenty-six cases were identified, with the mean age of 4.9 years. PN, walnut (WN), and pine nut accounted for 32.5%, 41.3%, and 7.1%, respectively. The median values of specific IgE (sIgE) to PN, WN and pine nut were 10...
November 28, 2016: Allergy
https://www.readbyqxmd.com/read/27875638/sensory-quality-preservation-of-coated-walnuts
#15
Antonella L Grosso, Claudia M Asensio, Nelson R Grosso, Valeria Nepote
The objective of this study was to evaluate the sensory stability of coated walnuts during storage. Four walnut samples were prepared: uncoated (NC), and samples coated with carboxymethyl cellulose (NCMC), methyl cellulose (NMC), or whey protein (NPS). The samples were stored at room temperature for 210 d and were periodically removed from storage to perform a sensory descriptive analysis. A consumer acceptance test was carried out on the fresh product (storage day 0) to evaluate flavor. All samples exhibited significant differences in their sensory attributes initially and after storage...
January 2017: Journal of Food Science
https://www.readbyqxmd.com/read/27862716/development-of-qpcr-systems-to-quantify-shoot-infections-by-canker-causing-pathogens-in-stone-fruits-and-nut-crops
#16
Y Luo, S Gu, D Felts, R D Puckett, D P Morgan, T J Michailides
AIMS: To develop real-time PCR assays for quantification of shoot infection levels of canker disease of stone fruits and nut crops caused by six fungal pathogen groups. METHODS AND RESULTS: This study focused on six major canker-causing fungal pathogen groups: Phomopsis sp., Botryosphaeria dothidea, Lasiodiplodia sp., Cytospora sp., Neofusicoccum sp. and Diplodia sp., occurring in stone fruits and nut crops in California. DNA primers were designed to specifically target each of the six pathogen groups after the specificity tests using canker-causing and non-canker-causing pathogens and by using DNA sequences of other species from GenBank using blast...
November 12, 2016: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/27848109/monitoring-of-aflatoxin-g1-b1-g2-and-b2-occurrence-in-some-samples-of-walnut
#17
Reza Habibipour, Parisa Rahimi Tamandegani, Abbas Farmany
This research was conducted to monitor the aflatoxigenic fungi and aflatoxin contamination of walnut in the Hamedan province. For this purpose, 40 samples were analyzed. Aspergillus, Alternaria, Rhizopus, Cladosporium, Fusarium, yeast, and some different bacteria were isolated from walnuts. Aspergillus is the most frequent genus. Aspergillus flavus was predominantly isolated. HPLC was used for evaluation of aflatoxin contamination of walnut samples. Aflatoxins G1 (AFG1), B1 (AFB1), G2 (AFG2), and B2 (AFB2) were produced by 20 isolates...
December 2016: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/27843557/inclusion-of-walnut-in-the-diets-of-adults-at-risk-for-type-2-diabetes-and-their-dietary-pattern-changes-a-randomized-controlled-cross-over-trial
#18
Valentine Yanchou Njike, Niloufarsadat Yarandi, Paul Petraro, Rockiy G Ayettey, Judith A Treu, David L Katz
BACKGROUND: In our recently published study, including walnuts in the diets of adults with prediabetes led to overall improvement in diet quality. This report adds to those study findings by examining the food groups displaced during walnut inclusion in the diets of those adults with prediabetes. METHODS: Randomized, controlled, modified Latin square parallel design with 2 treatment arms. The 112 participants (31 men, 81 women) were randomly assigned to a diet with or without dietary counseling to regulate calorie intake in a 1:1 ratio...
2016: BMJ Open Diabetes Research & Care
https://www.readbyqxmd.com/read/27792133/effects-of-walnut-consumption-on-mood-in-young-adults-a-randomized-controlled-trial
#19
Peter Pribis
Walnuts contain a number of potentially neuroprotective compounds like vitamin E, folate, melatonin, several antioxidative polyphenols and significant amounts of ω-3 fatty acids. The present study sought to determine the effect of walnuts on mood in healthy volunteers. Sixty-four college students were randomly assigned to two treatment sequences in a crossover fashion: walnut-placebo or placebo-walnut. At baseline mood was assessed using Profiles of Mood States (POMS). Data was collected again after eight weeks of intervention...
October 25, 2016: Nutrients
https://www.readbyqxmd.com/read/27776536/postprandial-effect-of-breakfast-glycaemic-index-on-vascular-function-glycaemic-control-and-cognitive-performance-bgi-study-study-protocol-for-a-randomised-crossover-trial
#20
Natalia Sanchez-Aguadero, Luis Garcia-Ortiz, Maria C Patino-Alonso, Sara Mora-Simon, Manuel A Gomez-Marcos, Rosario Alonso-Dominguez, Benigna Sanchez-Salgado, Jose I Recio-Rodriguez
BACKGROUND: Postprandial glycaemic response affects cognitive and vascular function. The acute effect of breakfast glycaemic index on vascular parameters is not sufficiently known. Also, the influence of breakfasts with different glycaemic index on cognitive performance has been mostly studied in children and adolescents with varying results. Therefore, the purpose of this study is to analyse the postprandial effect of high and low glycaemic index breakfasts on vascular function and cognitive performance and their relationship with postprandial glycaemic response in healthy young adults...
October 24, 2016: Trials
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