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Pesticide residues

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Sat, 05/25/2019 - 01:11
Publication date: Available online 24 May 2019 Environmental ResearchAuthor(s): Christian Sonne, Katrin Vorkamp, Anders Galatius, Line Kyhn, Jonas Teilmann, Rossana Bossi, Jens Søndergaard, Igor Eulaers, Jean-Pierre Desforges, Ursula Siebert, Rune DietzAbstractThe overall aim of the present study was to assess human exposure to environmental contaminants from consumption of harbour seal (Phoca...
Fri, 05/24/2019 - 01:11
Publication date: Available online 23 May 2019 Food and Chemical ToxicologyAuthor(s): Haroon Khan, Muhammad Zafar, Seema Patel, SM Mukarrum Shah, Anupam BishayeeAbstractα-glucosidase inhibition is a rational approach in the effective management of type 2 diabetes. Several inhibitors of this enzyme class are in clinical use, but are riddled with efficacy, potency and safety challenges. For this...
Thu, 05/23/2019 - 01:11
Available online 21 May 2019 Author(s): Xinying Gong, Mi Tang, Zhengjun Gong, Zhongping Qiu, Dongmei Wang, Meikun FanAbstractIn this work, we report a simple and rapid surface-enhanced Raman scattering (SERS) method for the screening of pesticide residues on fruit peels using a portable Raman spectrometer. Adhesive tapes were used as the sampling media; the effectiveness of different tape brands...
Thu, 05/23/2019 - 00:00
Toxins, Vol. 11, Pages 292: Rapid and Simple Detection of Ochratoxin A using Fluorescence Resonance Energy Transfer on Lateral Flow Immunoassay (FRET-LFI) Toxins doi: 10.3390/toxins11050292 Authors: Hyun-Kyung Oh Hyou-Arm Joung Minhyuk Jung Hohjai Lee Min-Gon Kim The detection of mycotoxins is crucial because of their toxicity in plants, animals, and humans. It is very important...
Mon, 05/20/2019 - 11:47
Abstract For addressing the issues of pesticide residue analysis characterized by the trace levels of target analytes and the complexity of sample matrices, a selective extracting material, carbon nanotubes (CNTs)/β‐cyclodextrin (β‐CD) nanocomposite reinforced hollow fiber (HF), was developed. CNTs were chemically modified with β‐CD and then the resultant nanocomposite was immobilized into the...
Mon, 05/20/2019 - 06:49
Abstract The fumigant toxicity of eight individual essential oils (EOs; basil, cinnamon, eucalyptus, mandarin, oregano, peppermint, tea tree, and thyme) and one binary combination (thyme and oregano) for control of the rice weevil, Sitophilus oryzae, were investigated. In bioassays, all individual and combined EOs were toxic to the rice weevil. Eucalyptus EO exhibited the highest toxicity among...
Mon, 05/20/2019 - 01:11
Available online 16 May 2019 Author(s): Anibal Concha-meyer, Stephanie Grandon, Gloria Sepúlveda, Ricardo Diaz, José Antonio Yuri, Carolina TorresAbstractPesticide residues on foods are a global concern due to the impact on human health. Many countries have adopted regulations to establish Maximum Residue Levels (MRLs) to control use of pesticides. This study aimed to determine pesticide residues...
Mon, 05/20/2019 - 01:11
Available online 16 May 2019 Author(s): Saeed S. AlbaseerAbstractControl of residual levels of synthetic pyrethroids in fresh fruits and vegetables as well as in foodstuff made of fresh agricultural produces is of utmost importance. Apart from the need to more control on application of pesticides by farmers, simple and effective postharvest practices by consumers and/or manufacturers usually...
Fri, 05/17/2019 - 15:35
Abstract Pesticide residues in produce are not commonly monitored in developing countries. This study aims to determine whether washing and peeling has an effect on removing pesticide residues from guava fruits. Seventy‐five guava samples were purchased from Thai markets, and analyzed for 67 pesticides. Eighteen pesticides were detected in the guava samples. The incidence of pesticide detection...
Fri, 05/17/2019 - 15:35
Abstract Pesticide residues in produce are not commonly monitored in developing countries. This study aims to determine whether washing and peeling has an effect on removing pesticide residues from guava fruits. Seventy‐five guava samples were purchased from Thai markets, and analyzed for 67 pesticides. Eighteen pesticides were detected in the guava samples. The incidence of pesticide detection...
Fri, 05/17/2019 - 00:00
Solid-phase extraction (SPE) was combined with dispersive liquid-liquid microextraction based on solidification of floating organic droplet (DLLME-SFO) as a pretreatment technique for the simultaneous analysis of 11 organochlorine pesticides (OCPs) and 5 polychlorinated biphenyls (PCBs) in fish tissue. Gas chromatography with electron capture detector was used for the...
Thu, 05/02/2019 - 00:00
The development and validation of a capillary electrophoresis–tandem mass spectrometry method for the determination of nine pesticides residues in corn samples is presented. The residues of thiabendazole, aminocarb, imazalil, atrazine, metazachlor, metoxuron, carbofuran, metosulam, and imazapyr have been extracted from corn samples using QuEChERS based extraction procedure. The...
Thu, 05/02/2019 - 00:00
Toxins, Vol. 11, Pages 249: Toxicity Studies of Chanoclavine in Mice Toxins doi: 10.3390/toxins11050249 Authors: Sarah C. Finch John S. Munday Jan M. Sprosen Sweta Bhattarai Epichlo&amp;euml; endophytes have been used successfully in pastoral grasses providing protection against insect pests through the expression of secondary metabolites. This approach could be extended to...
Mon, 04/29/2019 - 20:00
Surveillance and Genomics of Toxigenic Vibrio cholerae O1 From Fish, Phytoplankton and Water in Lake Victoria, Tanzania Yaovi M. Gildas Hounmanou1*, Pimlapas Leekitcharoenphon2, Rene S. Hendriksen2, Tamegnon V. Dougnon3, Robinson H. Mdegela4, John E. Olsen1 and Anders Dalsgaard1 1Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen,...
Sat, 04/27/2019 - 01:14
Available online 25 April 2019 Author(s): Jonatan V. Dias, Maria da Graça P. Nunes, Ionara R. Pizzutti, Bárbara Reichert, Aliar A. Jung, Carmem D. CardosoAbstractA simple and rapid method for simultaneous determination of pesticides and mycotoxins in red wine is presented. Sample preparation approach, called direct injection, consists of a sequence of only three steps: centrifugation, dilution...
Sat, 04/27/2019 - 01:14
Available online 25 April 2019 Author(s): Xi Chen, Mengshi Lin, Lin Sun, Taotao Xu, Keqiang Lai, Meizhen Huang, Hetong LinAbstractThe contamination of pesticide residues in Oolong tea has raised much concern in recent years. The objective of this study was to synthesize gold nanoparticles (AuNPs) and develop surface-enhanced Raman spectroscopy (SERS) methods for detection and quantification of...
Sat, 04/27/2019 - 01:14
Available online 26 April 2019 Author(s): Juan Manuel Montiel-León, Sung Vo Duy, Gabriel Munoz, Marc-André Verner, Mohammed Y. Hendawi, Hector Eduardo Moya Rojas, Marc Amyot, Sébastien SauvéAbstractHuman exposure to pesticides commands the implementation of food safety control, but few studies have provided a comparative assessment of conventional and organic products. This study set out to...
Sat, 04/27/2019 - 01:14
Available online 24 April 2019 Author(s): Ellen De Paepe, Jella Wauters, Mik Van Der Borght, Johan Claes, Steve Huysman, Siska Croubels, Lynn VanhaeckeAbstractA generic extraction and UHPLC-Q-OrbitrapTM-HRMS method was developed for four insect species (mealworm, grasshopper, house cricket and black soldier fly) analyzing a large spectrum of organic chemical contaminants, including pesticides (n=...
Sat, 04/27/2019 - 01:14
Available online 24 April 2019 Author(s): Zhijun Chen, Yiping Xu, Na Li, Yongzhong Qian, Zijian Wang, Yan LiuAbstractUsing the data from the “Agro-product Quality and Safety Risk Monitoring Plan” of the Ministry of Agriculture of China between 2012 and 2016, acute and chronic risk assessments of cumulative exposure to organophosphorus pesticides (OPPs) through vegetable consumption were conducted...
Mon, 04/22/2019 - 01:13
Publication date: Available online 19 April 2019 Environmental ResearchAuthor(s): Jyotsana Mehta, Sarita Dhaka, Ashok K. Paul, Siddavattam Dayananda, Akash DeepAbstractThe hexahistidine-tagged organophosphorus hydrolase (OPH6His) has been immobilized on a Zr-MOF, namely UiO-66-NH2. The resulting enzyme-MOF composite was used as a carrier to facilitate the hydrolysis of an organophosphate...
Mon, 04/22/2019 - 01:13
Publication date: Available online 27 March 2019 Environmental ResearchAuthor(s): Lina Casadó, Juan Pedro Arrebola, Andrés Fontalba, Araceli MuñozAbstractBackgroundHexachlorobenzene (HCB: C₆Cl₆) is a persistent, bioaccumulative chemical formerly used worldwide in pesticide mixtures but also produced as a by-product in the chemical and metallurgical industry. Despite current international...
Thu, 04/18/2019 - 11:01
Different Bacillus species with PGPR (plant growth-promoting rhizobacterium) activity produce potent biofungicides and stimulate plant defense responses against phytopathogenic fungi. However, very little is known about how these PGPRs recognize phytopathogens and exhibit the antifungal response. Here, we report the antagonistic interaction between Bacillus subtilis and the phytopathogenic fungus...
Mon, 04/01/2019 - 00:00
Molecular imprinted polymers on copper nanoparticle–decorated vinyl-functionalized graphene (CuNPs@GR-MIPs) are fabricated. The copper nanoparticles (CuNPs) are synthesized by the reduction of diaminopropane copper complexes (DAPCu) using sodium borohydride as reducing agent. The synthesized CuNPs are successfully decorated on vinyl-functionalized graphene (V-fGR) on which...
Mon, 04/01/2019 - 00:00
Oligonucleotide aptamers as a new type of molecular recognition element, compared with conventional antibodies, have not only high affinity and specificity to target molecules but also many advantages such as a wide range of target molecule recognition, synthesis in vitro, and chemical stability. With deep concerns of human beings about food safety issues, various aptamer-...
Thu, 03/28/2019 - 01:13
Available online 25 March 2019 Author(s): Shao Hua Lu, Sha Sha Li, Bo Yin, Jia Ying Mi, Hong Lin ZhaiAbstractDiverse interferences often affect the determination of pesticide residues in various kinds of food, and complex pretreatments are necessary. An effective approach for the simultaneous quantitative analysis of multi-target components in different substrates was proposed, and applied to the...
Mon, 03/25/2019 - 16:31
Publication date: May 2019 Environmental Research, Volume 172Author(s): Stepan Boitsov, Bjørn Einar Grøsvik, Guri Nesje, Ketil Malde, Jarle KlungsøyrAbstractLiver samples of two gadoid species, Atlantic cod (Gadus morhua) and haddock (Melanogrammus aeglefinus), sampled in the southern Barents Sea in the period 1992–2015, were studied for the levels of six types of persistent organic pollutants (...
Mon, 03/25/2019 - 16:31
Publication date: May 2019 Environmental Research, Volume 172Author(s): Govinda Bhandari, Paul Zomer, Kishor Atreya, Hans G.J. Mol, Xiaomei Yang, Violette GeissenAbstractWe conducted this study in order to assess the pesticide residues in vegetables and examine the related human health risk. Therefore, residues of 23 pesticides (organophosphates, organochlorines, acaricides, fungicides, and...
Mon, 03/25/2019 - 16:31
Publication date: May 2019 Environmental Research, Volume 172Author(s): Monica K. Silver, Jie Shao, Mingyan Li, Chai Ji, Minjian Chen, Yankai Xia, Betsy Lozoff, John D. MeekerAbstractIntroductionDespite widespread use, many herbicides and fungicides are not well studied for neurological effects. Fetal and infant brains are rapidly developing, yet the effects of early-life exposure to these...
Mon, 03/25/2019 - 16:31
Publication date: May 2019 Environmental Research, Volume 172Author(s): Kyung-Shin Lee, Young Ah Lee, Yun Jeong Lee, Choong ho Shin, Youn-Hee Lim, Yun-Chul HongAbstractBackgroundPyrethroid pesticides are reported to be the most commonly used residential insecticides worldwide. We aimed to investigate the relationship between prenatal and postnatal 3-phenoxybenzoic acid (3-PBA) concentrations, and...
Thu, 03/14/2019 - 01:13
Available online 12 March 2019 Author(s): S.T. Narenderan, S.N. Meyyanathan, Veera Venkata Satyanarayana Reddy KarriAbstractThe sample extraction process is considered as the essential step in the pesticide residue analysis, as it provides the base for the detection of the pesticides in trace level. Various factors need to be optimized during the extraction of pesticides due to the complexity of...
Mon, 03/11/2019 - 09:03
Abstract There is a growing interest in using natural antifungal compounds for the preservation of foods. The first experiment of this study was investigated an effect of pomegranate peel extract (PPE) and the essential oil (PPEO) in different concentrations mixed with potato dextrose agar (PDA) on spore germination of Penicillum italicum and Penicillum digitatum. in vivo experiments were...
Fri, 03/08/2019 - 01:14
Available online 6 March 2019 Author(s): Eric Ceballos-Alcantarilla, Consuelo Agulló, Antonio Abad-Somovilla, Antonio Abad-Fuentes, Josep V. MercaderAbstractMonoclonal antibody-based techniques have become a useful analytical technology in the agro-food sector. Nowadays, residues of the recently registered fungicide fluopyram are increasingly being found in quality control programs. In the...
Thu, 03/07/2019 - 01:14
Publication date: 30 July 2019 , Volume 287Author(s): Chenmeng Zhang, Tingting You, Nan Yang, Yukun Gao, Li Jiang, Penggang YinAbstractA novel hydrophobic-SERS substrate platform based on silver nanoparticles (AgNPs) functionalized commercially available filter paper was reported. Compared with conventional substrates, not only could this novel SERS substrate meet the requirements of simple and...
Wed, 02/20/2019 - 17:00
Jakob A. Shimshoni, Roy Sperling, Muhammad Massarwa, Yaira Chen, Vijayakumar Bommuraj, Mikhail Borisover, Shimon Barel Beehive products such as honey, beeswax and recently pollen have been regarded for many years as appropriate sentinels for environmental pesticide pollutions. However, despite yearly application of hundreds of approved pesticides in agricultural fields, only a minor fraction of...
Wed, 02/20/2019 - 01:13
Publication date: Available online 18 February 2019Source: LWTAuthor(s): G.D.A. Pinto, I.M. Castro, M.A.L. Miguel, M.G.B. KoblitzAbstractSome microorganisms, such as bacteria and yeasts, show the ability to degrade chlorpyrifos, one of the most commonly used organophosphate pesticides. The aim of the present work was threefold: 1. to investigate the ability of six strains of lactic acid bacteria...
Fri, 02/15/2019 - 00:00
Abstract Transcriptional regulatory proteins (TRPs)-based whole-cell biosensors are promising owing to their specificity and sensitivity, but their applications are currently limited. Herein, TRPs were adapted for the extracellular detection of a disease biomarker, uric acid, and a typical pesticide residue, carbaryl. A mutant regulatory protein that specifically recognizes...
Tue, 02/12/2019 - 01:14
Publication date: Available online 11 February 2019Source: LWTAuthor(s): Md Mehedi Hassan, Huanhuan Li, Waqas Ahmad, Muhammad Zareef, Jingjing Wang, Shicai Xie, Pingyue Wang, Qin Ouyang, Shaoyun Wang, Quansheng ChenAbstractThe study aimed to extend the applications of surface-enhanced Raman scattering (SERS) – recently one of the most promising and widely employed technique in food safety and...
Thu, 02/07/2019 - 01:13
Publication date: January 2019 Innovative Food Science & Emerging Technologies, Volume 51Author(s): Amaia Iriondo-DeHond, Natalia Aparicio García, Beatriz Fernandez-Gomez, Eduardo Guisantes-Batan, Francisco Velázquez Escobar, Gracia Patricia Blanch, Manuel Ignacio San Andres, Sebastián Sanchez-Fortun, María Dolores del CastilloAbstractThis research aimed to validate coffee husk, parchment and...
Wed, 02/06/2019 - 01:08
Publication date: December 2018Source: Microbial Risk Analysis, Volume 10Author(s): Robyn C. Miranda, Donald W. SchaffnerAbstractFoodborne illness outbreaks have been increasingly linked to the consumption of fresh and frozen berries that were contaminated with pathogenic viruses, such as human norovirus (NoV). Contamination of berries is assumed to take place at harvest by the use of...
Fri, 02/01/2019 - 00:00
In this study, a combination of modified quick easy cheap effective rugged and safe extraction and dispersive liquid–liquid microextraction has been proposed for the extraction and preconcentration of some widely used pesticides (diazinon, chlorpyrifos, penconazole, oxadiazon, and diniconazole) from fruit and vegetable samples prior to their determination by gas...
Fri, 02/01/2019 - 00:00
In this work, a rapid, simple, and environmentally friendly method has been proposed for direct supramolecular microextraction of four organophosphate insecticides (ethion, phosalone, diazinon, chlorpyrifos) and an isothiazolidine acaricide (hexythiazox) in agricultural product samples prior to their determination by high-performance liquid chromatography-ultraviolet...

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