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Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes

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https://www.readbyqxmd.com/read/29775426/impact-of-a-native-streptomyces-flavovirens-from-mushroom-compost-on-green-mold-control-and-yield-of-agaricus-bisporus
#1
Ljiljana Šantrić, Ivana Potočnik, Ljiljana Radivojević, Jelena Gajić Umiljendić, Emil Rekanović, Bojan Duduk, Svetlana Milijašević-Marčić
Thirty-five actinobacterial isolates, obtained from button mushroom (Agaricus bisporus) substrates (i.e., compost in different phases of composting, black peat or casing layer) in Serbia in 2014-2016 were tested in vitro against the causal agents of green mold in cultivated mushroom. Out of six most promising isolates, A06 induced 42.4% in vitro growth inhibition of Trichoderma harzianum T54, and 27.6% inhibition of T. aggressivum f. europaeum T77. The novel strain A06 was identified as Streptomyces flavovirens based on macroscopic and cultural characteristics and 16S rDNA sequence and used in mushroom growing room experiments...
May 18, 2018: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/29775424/optimized-yeast-based-in-vitro-bioassay-for-determination-of-estrogenic-and-androgenic-activity-of-hydroxylated-methoxylated-metabolites-of-bdes-cbs-and-related-lipophilic-organic-pollutants
#2
Marek Roszko, Marta Kamińska, Krystyna Szymczyk, Katarzyna Piasecka-Jóźwiak, Beata Chabłowska
Persistent organic pollutants (POPs) are known to show endocrine disrupting (ED) activity, including interactions with hormone receptors. The aim of this work was to develop a bioassay applicable for evaluation of ED potency of highly lipophilic metabolites of POPs. To that end, a yeast-based bio-assay protocol was used. Estrogenic / androgenic activity of some native brominated biphenyl ethers (BDEs) / chlorinated biphenyls (CBs), and their hydroxylated / methoxylated metabolites was assessed. Since data (including potency compared to reference native hormones) obtained using different protocols vary, the possibility that yeast transforms POPs into some more potent compounds was first checked; it seems that no such transformation is important from the test applicability standpoint...
May 18, 2018: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/29768098/surface-enhanced-raman-spectroscopic-analysis-of-n-6-benzylaminopurine-residue-quantity-in-sprouts-with-gold-nanoparticles
#3
Ping Zhang, Li M Wang, Da W Zheng, Tai F Lin, Xiao D Wei, Xiao Y Liu, Hui Q Wang
A rapid and quantitative method for the determination of N6 -Benzylademine (N6 -BA) was established through the application of surface-enhanced Raman spectroscopy (SERS). The Raman peak intensities of N6 -BA at 1002 cm-1 positively correlated to N6 -BA concentrations in sprout extracts. The R2 reached 0.99, and RSDs calculated below 10% at the concentration range of 0.1 ∼5μg mL-1 . The average recoveries were 80.0% ∼ 98.2% for blank samples intentionally contaminated at differing levels of 0.04, 0.4, and 1 μg g-1 ...
May 16, 2018: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/29719194/mineral-constituents-in-leccinum-scabrum-from-lowland-locations-in-the-central-europe-and-their-relation-to-concentration-in-forest-topsoil
#4
Jerzy Falandysz
Leccinum scabrum is an edible mushroom common in European regions in the northern hemisphere. Macro and trace mineral constituents such as Ag, Al, Ba, Ca, Cd, Co, Cu, Fe, K, Mg, Mn, Na, Ni, Pb, P, Rb, Sr and Zn were studied in L. scabrum and in the top soil collected from the same location underneath soil substratum. The "pseudo-total" and labile (extractable fraction of minerals) were measured to get insight into the levels, distribution between the morphological parts of fruiting bodies, potential for their bioconcentration by mushroom and evaluated for human exposure via consumption of the mushroom...
May 2, 2018: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/29708850/examination-of-the-influence-of-phenyltrimethylammonium-chloride-ptma-concentration-on-acetochlor-adsorption-by-modified-montmorillonite
#5
Lazar M Kaluđerović, Zorica P Tomić, Darko P Ašanin, Rada D Đurović-Pejčev, Branka J Kresović
The results presented in this paper show an impact of the concentration of the aromatic organic cation on the adsorption of acetochlor on the surface of the organic-modified montmorillonite. Natural montmorillonite from Bogovina (Boljevac municipality, Serbia) was used for organic modification in this experiment. Cation exchange capacity of this montmorillonite (86 mmol 100 g-1 of clay) was determined using the methylene blue method. In pretreatment, montmorillonite was modified with NaCl. For the purpose of organic modification, three different concentrations of phenyltrimethylammonium chloride (PTMA) have been selected, based on calculated CEC value: 43 mmol 100 g-1 of clay (0...
April 30, 2018: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/29708841/chemical-indicators-of-exposure-to-polychlorodibenzo-p-dioxins-polychlorodibenzofurans-and-polychlorobiphenyls-in-breast-milk-samples-from-mothers-residing-in-trento-italy-and-neighboring-country-municipalities
#6
Miniero Roberto, Ferri Fabiola, Carraro Valter, Franchini Silva, Rita Fulgenzi Anna, Iacovella Nicola, Ingelido Anna Maria, De Felip Elena
A human biomonitoring study was carried out in the province of Trento, northern Italy, on two groups of women residing in areas with presumably different levels of exposure to polychlorodibenzo-p-dioxins (PCDDs), polychlorodibenzofurans (PCDFs) and polychlorobiphenyls (PCBs). The aim was characterization of the possible impact of a steel plant and an urban environment on the internal doses of these contaminants. The areas investigated were the following: (i) the municipality of Borgo Valsugana, where a steel plant has been operating for the last 30 years, and (ii) the city of Trento...
April 30, 2018: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/29708834/antioxidant-activity-shown-by-olive-pomace-extracts
#7
Alessandra De Bruno, Rosa Romeo, Francesca L Fedele, Andrea Sicari, Amalia Piscopo, Marco Poiana
In this study, the effects of experimental variables such as type of solvent, sample/solvent ratio, and time of extraction have been evaluated to individuate the best results in phenolic recovery by Olive Pomaces (OP) belonging to Carolea and Ottobratica cultivars. Folin-Ciocaulteu procedure and DPPH and ABTS assays were used, respectively, for total phenol quantification and total antioxidant activity of pomace extracts. The ethanol/water mixture was resulted the most efficient extraction solvent for both olive cultivars...
April 30, 2018: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/29708833/chemoreception-of-botanical-nematicides-by-meloidogyne-incognita-and-caenorhabditis-elegans
#8
Robert Sobkowiak, Natalia Bojarska, Emilia Krzyżaniak, Karolina Wągiel, Nikoletta Ntalli
Plant-parasitic nematodes, such as Meloidogyne incognita, cause serious damage to various agricultural crops worldwide, and their control necessitates environmentally safe measures. We have studied the effects of plant secondary metabolites on M. incognita locomotion, as it is an important factor affecting host inoculation inside the soil. We compared the effects to the respective behavioral responses of the model saprophytic nematode Caenorhabditis elegans. The tested botanical nematicides, all reported to be active against Meloidogyne sp...
April 30, 2018: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/29708830/earthworms-to-assess-the-innocuousness-of-spent-biomixtures-employed-for-glyphosate-degradation
#9
Carolina E Masin, Maia R Lescano, Alba R Rodríguez, José L Godoy, Cristina S Zalazar
In this study, the innocuousness of different biomixtures employed for glyphosate degradation was tested through Eisenia fetida earthworms. Eight biomixtures were prepared with local materials: alfalfa straw (AS), wheat stubble (WS), river waste (RW) and two different soils (A and B). Each biomixture was divided into two equal portions: one without glyphosate application (control substrate) and the other was sprayed with a commercial glyphosate formulation of 1,000 mg glyphosate a.i. kg-1 biomixture (applied substrate)...
April 30, 2018: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/29708825/elemental-analysis-and-nutritional-value-of-edible-trifolium-clover-species
#10
Thaveshan Gounden, Roshila Moodley, Sreekantha B Jonnalagadda
Trifolium species, commonly known as clover species, have a cosmopolitan distribution and, as such, are used in many different traditional systems of medicine and consumed by many communities all over the world. In this study, the elemental distribution and nutritional value of five edible Trifolium species, namely, Trifolium africanum, Trifolium burchellianum, Trifolium repens, Trifolium dubium and Trifolium pratense were investigated to evaluate the potential of these plant species to alleviate malnutrition, thereby contributing toward the fight against food insecurity...
April 30, 2018: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/29708462/effect-of-clarification-process-on-the-removal-of-pesticide-residues-in-red-wine-and-comparison-with-white-wine
#11
Danae S Doulia, Efstathios K Anagnos, Konstantinos S Liapis, Demetrios A Klimentzos
The aim of this study was to determine the potential of seven clarifying agents to remove pesticides in red wine. The presence of pesticides in wine consists a great problem for winemakers and therefore, results on pesticide removal by clarification are very useful for taking a decision on the appropriate adsorbent. The selection of an efficient adsorbent can be based on data correlating pesticide removal in red wine to pesticides' properties, given the great number and variety of pesticides used. So, this experimental work is focused on the collection of results with regard to pesticide removal by clarification using a great number of pesticides and fining agents...
April 30, 2018: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/29624494/pesticides-impact-on-clavibacter-michiganensis-ssp-sepedonicus-biofilm-formation
#12
Alla I Perfileva, Antonina G Pavlova, Baira B Bukhyanova, Olga M Tsivileva
The effect of various pesticides on the biofilm formation by the phytopathogenic bacterium Clavibacter michiganensis ssp. sepedonicus (Cms), the potato ring rot causative agent, was explored for the first time. Systemic herbicides: 2,4-D, diuron, glyphosate, clopyralid, fluorodifen, as well as the commercial preparations "Lazurite," "Ridomil Gold," and the mitochondria inhibiting pesticides analog, sodium monoiodoacetate, were studied. These pesticides' effect on the Cms biofilm formation was shown to be distinct and dependent on the agent under question...
April 6, 2018: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/29624491/determination-of-mineral-contents-of-wild-boletus-edulis-mushroom-and-its-edible-safety-assessment
#13
Jiuyan Su, Ji Zhang, Jieqing Li, Tao Li, Honggao Liu, Yuanzhong Wang
This study aimed to determine the contents of main mineral elements of wild Boletus edulis and to assess its edible safety, which may provide scientific evidence for the utilization of this species. Fourteen mineral contents (Ba, Ca, Cd, Co, Cr, Cu, Fe, Mg, Mn, Na, Ni, Sr, V and Zn) in the caps and stipes of B. edulis as well as the corresponding surface soils collected from nine different geographic regions in Yunnan Province, southwest China were determined. The analyses were performed using inductively coupled plasma atomic emission spectrometer (ICP-AES) after microwave digestion...
April 6, 2018: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/29624471/an-integrated-approach-for-assessing-the-migration-behavior-of-chlorpyrifos-and-carbaryl-in-the-unsaturated-soil-zone
#14
Lorena A Latini, María M Indaco, María B Aguiar, Liliana B Monza, María E Parolo, Carlos F Melideo, Mónica C Savini, Ruth M Loewy
Chlorpyrifos (O, O-diethyl O-3,5,6-trichloropyridin-2-yl phosphorothioate) and carbaryl (1-naphthyl methylcarbamate) are often applied concurrently as insecticides in food production. The aim of this study was to research their migration behavior in a real environment. We researched the leaching of both pesticides by setting up field lysimeters on a farm with the typical soil used in fruit production today. In order to analyze the variables involved in this process, we performed complementary adsorption studies, we performed complementary adsorption studies using batches and undisturbed soil laboratory columns for both compounds...
April 6, 2018: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/29624468/effects-of-glyphosate-on-the-non-target-leaf-beetle-cerotoma-arcuata-coleoptera-chrysomelidae-in-field-and-laboratory-conditions
#15
Jardel L Pereira, Tarcísio V S Galdino, Geverson A R Silva, Marcelo C Picanço, Antônio A Silva, Alberto S Corrêa, Júlio C Martins
This study aimed to assess the glyphosate application effects on the Cerotoma arcuata Oliver (Coleoptera: Chrysomelidae) population in glyphosate-resistant soybean crops. Field studies were conducted with glyphosate and the insecticide endosulfan to observe the effects of these pesticides on C. arcuata, on its damages in the crop and on the populations of natural enemies in glyphosate-resistant soybean crops. Moreover, the lethal and behavioral sublethal response of C. arcuata to glyphosate and endosulfan was conducted in the laboratory...
April 6, 2018: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/29596028/expression-and-functional-analysis-of-three-nicosulfuron-degrading-enzymes-from-bacillus-subtilis-yb1
#16
Zhe Zhang, Yue Zhang, Dong C Yang, Jin L Zhang
To investigate the degradation activity of the manganese ABC transporter, vegetative catalase 1 and acetoin dehydrogenase E1 from Bacillus subtilis YB1, the proteins were prokaryotically expressed and purified. Assay results showed that the three enzymes were able to degrade nicosulfuron (2- (4,6-dimethoxypyrimidine-2-pyrimidinylcarbamoylaminosulfonyl) -N,N-dimethylnicotinamide), with vegetative catalase 1 exhibiting the highest activity. To further examine the degradation pathway, the degradation products of the three enzymes and the YB1 strain were detected by liquid chromatography-mass spectrometry(LC-MS)...
March 29, 2018: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/29509102/development-and-validation-of-hplc-methods-for-analysis-of-chlorantraniliprole-insecticide-in-technical-and-commercial-formulations
#17
Mohamed E I Badawy
Effective, selective, precise and accurate liquid chromatographic analytical methods for the analysis of a novel chlorantraniliprole insecticide in technical and formulation (coragen, 20% SC) have been optimized and validated. Eight methods were designed based on different mobile phases, temperature and two HPLC columns. The mobile phase consists of two mixtures (acetonitrile:water, 70:30 and methanol:water, 70:30) with 25 or 40ºC. HPLC analysis of chlorantraniliprole was carried out at a wavelength of 260 nm, with a flow rate of 0...
March 6, 2018: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/29485346/pyrethroid-residue-dynamics-in-insects-depends-on-the-circadian-clock
#18
Justyna Maliszewska, Bartosz Piechowicz, Gabriela Maciąga, Lech Zaręba, Sonia Marcinkowska
Many factors may affect pesticide effectiveness against pests. One of the factors that should be considered is circadian rhythmicity. In this study, we evaluated daily variations in pyrethroid susceptibility in the house cricket, Acheta domesticus L. Crickets were exposed to a standard dose of ß-cyfluthrin at different times of a day, and pesticide residue levels were evaluated using gas chromatography. Results demonstrate that the time of pyrethroid disappearance is correlated with the circadian clock, with the highest decomposition rate at night...
February 27, 2018: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/29469609/diversity-of-antibiotic-resistance-genes-and-encoding-ribosomal-protection-proteins-gene-in-livestock-waste-polluted-environment
#19
Chunyan Li, Cheng Jiang, Zhiyang Wu, Binglin Cheng, Xuejiao An, Hailan Wang, Yueling Sun, Mingyan Huang, Xi Chen, Jinming Wang
The rapid development and increase of antibiotic resistance are global phenomena resulting from the extensive use of antibiotics in human clinics and animal feeding operations. Antibiotics can promote the occurrence of antibiotic resistance genes (ARGs), which can be transferred horizontally to humans and animals through water and the food chain. In this study, the presence and abundance of ARGs in livestock waste was monitored by quantitative PCR. A diverse set of bacteria and tetracycline resistance genes encoding ribosomal protection proteins (RPPs) from three livestock farms and a river were analyzed through denaturing gradient gel electrophoresis (DGGE)...
February 22, 2018: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/29469607/packed-in-tube-solid-phase-microextraction-with-graphene-oxide-supported-on-aminopropyl-silica-determination-of-target-triazines-in-water-samples
#20
Ana L De Toffoli, Bruno H Fumes, Fernando M Lanças
On-line in-tube solid phase microextraction (in-tube SPME) coupled to high performance liquid chromatography and tandem mass spectrometry (HPLC-MS/MS) was successfully applied to the determination of selected triazines in water samples. The method based on the employment of a packed column containing graphene oxide (GO) supported on aminopropyl silica (Si) showed that the extraction phase has a high potential for triazines extraction aiming to its physical-chemical properties including ultrahigh specific surface area, good mechanical and thermal stability and high fracture strength...
February 22, 2018: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
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