Pesticide residues

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Fri, 04/16/2021 - 02:02
Abstract The concentration levels of some important pesticides were evaluated in soil samples from different areas of the North of Iran (Golestan province) and to indicate the possible sources and risks of contamination. A multiresidue analytical procedure using the QuEChERS approach was developed to extract and measure 12 pesticide residues from ten different classes in 145 soil samples...
Wed, 04/14/2021 - 04:03
A multiclass analytical method to determine pesticides and mycotoxins in beer-related matrices based on the dilute and shoot approach was optimized and validated according to the European guidelines SANTE/12682/2019 and EC/401/2006. Extraction used acidified acetonitrile at 1% (v/v) acetic acid, followed by horizontal shaking homogenization, centrifugation, freeze-out step for cleanup, another...
Wed, 04/14/2021 - 02:02
Injudicious and ever-increasing use of pesticides has made consumers more aware and critical about quality control and quality assurance in fruits and vegetables. Presence of pesticide residues in food commodities is one of the most indispensable parameters in quality control and quality assurance. To meet out the demand of acceptable or no residues in crops, different agencies viz. Codex...
Mon, 04/12/2021 - 02:02
Abstract Industrialisation, directly or indirectly, exposes humans to various xenobiotics. The increased magnitude of chemical pesticides and toxic heavy metals in the environment, as well as their intrusion into the food chain, seriously threatens human health. Therefore, the surveillance of xenobiotics is crucial for social safety and security. Online investigation by traditional methods is...
Sun, 04/04/2021 - 02:02
One hundred and twenty samples of breast milk were collected from five northern governorates and districts in Jordan in 2019 and 2020 to monitor results for organochlorine pesticides as organic contaminants. The results showed that 36 samples (30%) of total 120 analyzed samples were contaminated as follows: 16 samples (13.3%) were contaminated with dieldrin, 4 samples (3.3%) with p,p′-DDE, 4...
Sat, 04/03/2021 - 06:18
Author(s): Vahideh Mahdavi, Arnavaz Keikavousi Behbahan, Gholamreza Golmohammadi, Behrouz Tajdar, Zahra Eslami, Amin Mousavi Khaneghah Saffron is a strategic agricultural product having extensive flavoring applications in Asia. Although utilization of pesticides for its cultivation is limited, there is a possible risk of contamination in this prominent spice. Herein, 88 pesticides were analyzed...
Fri, 04/02/2021 - 06:09
Author(s): Philipp Eyring, Marc Tienstra, Hans Mol, Susan Strange Herrmann, Peter Have Rasmussen, Henrik Lauritz Frandsen, Mette Erecius Poulsen Various generic extraction methods have been used to determine pesticide residues, mycotoxins, and polycyclic aromatic hydrocarbons (PAHs) in food and animal feed to ensure consumer safety. However, these methods cannot extract all relevant compounds at...
Sat, 03/27/2021 - 22:09
Journal of Separation Science, Accepted Article. Pesticides and veterinary drugs are generally employed to control pests and insects in crop and livestock farming. However, remaining residues are considered potentially hazardous to human health and the environment. Therefore, regular monitoring is required for assessing and legislation of pesticides and veterinary drugs. Various approaches to...
Thu, 03/25/2021 - 00:00
Bacillus cytotoxicus belongs to the Bacillus cereus group that also comprises the foodborne pathogen Bacillus cereus sensu stricto, Bacillus anthracis causing anthrax, as well as the biopesticide Bacillus thuringiensis. The first B. cytotoxicus was isolated in the context of a severe food poisoning outbreak leading to fatal cases of diarrheal disease. Subsequent characterization of the outbreak...
Wed, 03/24/2021 - 06:10
Author(s): Huijun Li, Jieshan Wu, Chao Chen, Wenfeng Xin, Wensheng Zhang This study established a method for the simultaneous determination of 74 pesticide residues in Panax notoginseng by QuEChERS pretreatment method coupled with GC-MS/MS, and carried out pesticide residue analysis on 20 batches of market samples in China. The samples were extracted with acetonitrile, cleaned up with primary...
Fri, 03/19/2021 - 00:00
Cordyceps fumosorosea, an insect pathogenic fungus, produces different toxins/secondary metabolites which can act as pest control agents. This study reports the extraction and characterization of crude mycelial extracts of C. fumosorosea isolate SP502 along with their bio-efficacy against Bemisia tabaci and Aphis craccivora. Fourier transform infrared spectroscopy, liquid chromatography, mass...
Thu, 03/18/2021 - 16:00
Thailand is an agricultural country. However, agricultural productivity relies on the heavy use of herbicides, especially paraquat. Paraquat accumulation is emerging as a problem in an ever-growing portion of agricultural land. Paraquat residues are toxic to plants, animals, and aquatic organisms in the environment. Biological remediation is a process that can mitigate agricultural chemical...
Thu, 03/18/2021 - 06:13
Author(s): Ljilja Torović, Gorica Vuković, Nina Dimitrov The occurrence of pesticide residues in food and the consequent health risks attract considerable attention. The current study comprised 139 samples of fruit juice present on the Serbian market. Out of 69 pesticide active substances analysed by liquid chromatography tandem mass spectrometry with electrospray ionisation, 19 were detected,...
Sun, 03/14/2021 - 05:02
Oxathiapiprolin is a novel chiral piperidine thiazole isooxazoline fungicide that contains a pair of enantiomers. An effective analytical method was established for the enantioselective detection of oxathiapiprolin in fruit, vegetable, and soil samples using ultraperformance liquid chromatography-tandem triple quadrupole mass spectrometry. The optimal enantioseparation was achieved on a Chiralpak...
Sat, 03/13/2021 - 06:15
Author(s): Changjian Li, Huimin Zhu, Changyan Li, He Qian, Weirong Yao, Yahui Guo Pesticide residues are one of the most important issues affecting food safety. In this review, the general situation of pesticide residues in fruits and vegetables based on the background of the Chinese fruit and vegetable industry is first described. On the basis of primary processing of agricultural products, the...
Sat, 03/13/2021 - 06:14
Author(s): Marjan Koushkestani, Samira Abbasi-Moayed, Forough Ghasemi, Vahideh Mahdavi, M. Reza Hormozi-Nezhad In this work, a colorimetric sensor array has been designed for the identification and discrimination of thiometon (TM) and phosalone (PS) as organophosphate pesticides and prothioconazole (PC) as a triazole pesticide. For this purpose, two different plasmonic nanoparticles including...
Sat, 03/13/2021 - 02:02
As a novel detection method of CuSO4, terahertz (THz) spectroscopy detection has great application prospects, but the terahertz detection with the tablet method has low sensitivity, and with the metamaterials has complicated manufacture. This work has proposed a high-sensitivity pesticide THz spectroscopic detection method with a novel metal grating. The metal grating was composed of a circular...
Fri, 03/12/2021 - 08:04
by Iliana Julieta Cortese, María Lorena Castrillo, Andrea Liliana Onetto, Gustavo Ángel Bich, Pedro Darío Zapata, Margarita Ester Laczeski Plant growth-promoting bacteria (PGPB) are a heterogeneous group of bacteria that can exert beneficial effects on plant growth directly or indirectly by different mechanisms. PGPB-based inoculant formulation has been used to replace chemical fertilizers and...
Thu, 03/11/2021 - 14:04
This study developed an in-field analytical technique for food samples by integrating filtration into a surface-enhanced Raman spectroscopy (SERS) microchip. This microchip embedded a filter membrane in the chip inlet to eliminate interfering particulates and enrich target analytes. The design and geometry of the channel were optimised by finite-elemental method (FEM) to tailor variations of flow...
Wed, 03/10/2021 - 06:10
Author(s): Zahra Sarlak, Kianoush Khosravi-Darani, Milad Rouhi, Farhad Garavand, Reza Mohammadi, Mohammad Reza Sobhiyeh Organophosphorus pesticides (OPPs) are widely used to control agricultural and domestic pests. Exposure to OPP residues poses serious health threats to human health through consumption of contaminated foods and water. Therefore, it is required to remove the OPP residues from...
Wed, 03/10/2021 - 06:09
Author(s): Guozheng Zhao, Binhua Zhou, Xiuwen Wang, Jian Shen, Bo Zhao Based on the successful synthesis of mercaptomethamidophos as a substrate, a novel nanogold/mercaptomethamidophos multi-residue electrochemical biosensor was designed and fabricated by combining nanoscale effect, strong Au−S bonds as well as interaction between acetylcholinesterase (AChE) and mercaptomethamidophos, which can...
Sun, 03/07/2021 - 02:02
Tomato is well-known to be one of the most cultivated and consumed vegetables worldwide and frequently contain pesticide residues. Therefore, a simple multiresidue method was established and validated to determine 129 pesticides and metabolites in tomato samples using a modified acetate QuEChERS without cleanup for sample preparation and determination by ultrahigh-performance liquid...
Sun, 03/07/2021 - 02:02
Sugarcane is a major crop in Brazil as well as other tropical areas. The rise of green cane systems that maintain straw on the soil surface after mechanical harvesting alongside extreme precipitation has changed the use and environmental fate of pesticides, mainly herbicides. The goal of this research was to evaluate the effects of straw amounts (0, 7, and 14 t ha−1), soil water contents (10 and...
Fri, 03/05/2021 - 06:08
Author(s): Stuart Ben Mukiibi, Steven Allan Nyanzi, Justus Kwetegyeka, Chijioke Olisah, Adewale Matthew Taiwo, Edward Mubiru, Emmanuel Tebandeke, Henry Matovu, Silver Odongo, Juma John Moses Abayi, Emily Chelangat Ngeno, Mika Sillanpää, Patrick Ssebugere Honey has multifaceted nutritional and medicinal values; however, its quality is hinged on the floral origin of the nectar. Taking advantage of...
Wed, 03/03/2021 - 22:10
Journal of Separation Science, Accepted Article. The intensive application of pesticides to increase crop production has resulted in contamination of the agricultural products. Due to their occurrence at trace levels and the complexity of food samples, analysis of pesticide residues requires selective and efficient sample preparation methods. For this purpose, an extraction method based on...
Tue, 03/02/2021 - 04:02
Development of simple, sensitive, and reliable fluorescence sensors for monitoring the residue, distribution, and variation of organophosphorus pesticides (OPs) in agricultural crops is highly urgent but remains challenging, which is ascribed to deprivation of an ideal fluorophore and ingenious detection strategy. Herein, we report the fabrication of cadmium telluride quantum dots (CdTe QDs) with...
Tue, 03/02/2021 - 04:02
Nowadays, a lot of pesticides have been used in the agriculture field due to the global demand for food production. Carbofuran (CF) is the most commonly used carbamate compound that is responsible for the highest toxicity to humans compared to any other pesticide used in agricultural settings. Thus, rapid, portable, and low-cost sensors are needed for the detection of CF in the environment and...
Tue, 03/02/2021 - 04:02
Pesticide residues are a food safety concern. A good detection method is critical for rapid and accurate determination of pesticide metabolites in crops and studying metabolism. The pretreatment methods have mainly been ultrasonic extraction–solid-phase extraction and QuEChERS, while detection methods have been radio-chromatography, nuclear magnetic resonance, and mass spectrometry. This...
Mon, 03/01/2021 - 06:09
Author(s): Mehmet Fatih Cengiz, Onur Basançelebi, Mehmet Başlar, Muharrem Certel In this study, effects of low-intensity electrical currents (200, 800 and 1400 mA), ultrasound frequencies (24 and 40 kHz) and their combinations were applied at the duration period of 2, 4, 6, 8, and 10 minutes for the degradation of captan, thiamethoxam and metalaxyl residues in lettuce samples. Residues of the...
Fri, 02/26/2021 - 16:00
Maize is one of the most important crops worldwide and is the number one arable crop in Portugal. A transition from the conventional farming system to organic agriculture requires optimization of cultivars and management, the interaction of plant–soil rhizosphere microbiota being pivotal. The objectives of this study were to unravel the effect of population genotype and farming system on...
Mon, 02/22/2021 - 06:10
Author(s): Xu Pang, Xiuhua Liu, Liangrui Peng, Zhijun Chen, Jing Qiu, Xin Su, Changyuan Yu, Jiguang Zhang, Rui Weng Increasing pesticide contamination in foods of animal origin has made the wide-scope multi-residue analysis of pesticides an international concern. In this study, a sensitive and reliable multi-residue pesticide analysis method for beef was developed with the use of 129 pesticides...
Sat, 02/20/2021 - 06:24
Author(s): Jinfeng Ran, Lingxue Zhang, Jianmei Yao, Shasha Wang, Ping Liang, Nan Dong Cucurbit[7]uril (Q[7]) was first used as a dispersant sorbent material in a matrix solid-phase dispersion for the simultaneous extraction of four quaternary ammonium pesticides from vegetables before analysis using high-performance liquid chromatography with UV detection. Q[7] exhibited a better selectivity and...
Fri, 02/19/2021 - 22:13
Journal of Separation Science, Accepted Article. In this study, a lab‐made Parallel‐Single Drop Microextraction methodology using the magnetic ionic liquid trihexyltetradecylphosphonium tetrachloromanganate (II) as extraction solvent was developed to determine the pesticides tebuconazole, pendimethalin, dichlorodiphenyltrichloroethane, and dichlorodiphenyldichloroethylene in human urine samples....
Fri, 02/19/2021 - 06:10
Author(s): Hongxia Tang, Lin Ma, Jiaqing Huang, Yubo Li, Zehui Liu, Dianying Meng, Guangyue Wen, Maofeng Dong, Weimin Wang, Li Zhao A reliable and simple modified QuEChERS method with UPLC-MS/MS was developed for the simultaneous determination of six pesticides (dimethomorph, imidaclothiz, lufenuron, methoxyfenozide, pyridaben, spinetoram) and their metabolites in pak choi. Method validation...
Sun, 02/14/2021 - 06:10
Author(s): Ru Chen, Xiaomin Xue, Guiping Wang, Jinzheng Wang The presence of pesticide residues in apples raises serious health concerns. In this study, a novel, sensitive, high-performance method was developed to simultaneously analyze the residues of 14 pesticides in apples using modified QuEChERS sample pretreatment coupled with ultra-performance liquid chromatography-tandem mass spectrometry...
Wed, 02/10/2021 - 10:03
ABSTRACT The global spread of antibiotic-resistant bacteria and their resistance genes is a critical issue that is no longer restricted to hospital settings, but also represents a growing problem involving environmental and food safety. In this study, we have performed a microbiological and genomic investigation of critical priority pathogens resistant to broad-spectrum cephalosporins and showing...
Wed, 02/10/2021 - 02:03
Abstract Biochar produced from different raw materials by pyrolysis have been utilized as an alternative material for organic compound adsorption. This study aims to evaluate the use of biochar generated from sugar cane filter cake, after pyrolysis treatment at 380 °C, in the adsorption process of thiamethoxam pesticide in wastewater. The biochar was studied based on moisture, volatile matter,...
Mon, 02/08/2021 - 22:09
Variability of pesticide residues in food item plays a key role for the evaluation of consumer food safety. However, variability factors (VFs) derived from the large size fruit crops are still scarce. Therefore, the present work was aimed to quantify pesticide residues and to estimate VFs in large size fruit crops of mango and guava.
Sun, 02/07/2021 - 06:12
Author(s): Mohsen Gavahian, Chaitanya Sarangapani, NN Misra Pesticide and agrochemical residues in food and water are among hazardous chemicals that are associated with adverse health effects. Consequently, technologies for pesticide abatement in food and water remain in focus. Cold plasma is an emerging decontamination technology, that is being increasingly explored for the abatement of...
Tue, 02/02/2021 - 06:21
Author(s): Qin Ouyang, Li Wang, Waqas Ahmad, Yawen Rong, Huanhuan Li, Yuqian Hu, Quansheng Chen Carbendazim (CBZ) pesticide residues in food products have become a growing concern in recent years. Herein, a sensitive biosensor for detecting CBZ was developed based on luminescent resonance energy transfer (LRET) from aptamer labeled upconversion nanoparticles (UCNPs, donor) to manganese dioxide (...
Tue, 02/02/2021 - 04:03
Pesticide residues in food have been a grave concern to consumers. Herein, we have developed a dual-mode SERS chip using Cu2O mesoporous spheres decorated with Ag nanoparticles (MCu2[email protected] NPs) as both sensing and degradation/clearing unit for rapid detection of pymetrozine and thiram pesticides in tea samples. Three kinds of chemometric algorithms were comparatively applied to analyze...
Sat, 01/30/2021 - 08:05
by Pennante Bruce-Vanderpuije, David Megson, Song-Hee Ryu, Geun-Hyoung Choi, Sang-Won Park, Byung-Seok Kim, Jin Hyo Kim, Hyo-Sub Lee This study provides a review of methods used in the determination of organochlorine pesticides (OCPs) in ginseng and compares the effectiveness of three extraction methods (Quick, Easy, Cheap, Effective, Rugged, and Safe (QuEChERS), a modified QuEChERS and a Fast...
Sat, 01/30/2021 - 06:23
Author(s): María Belén Medina, Martín Sebastián Munitz, Silvia Liliana Resnik The residues of deltamethrin, penconazole, kresoxim-methyl, cyproconazole, epoxiconazole and azoxystrobin were determined in husk rice, brown rice, husk and bran, fifty samples of each matrix, obtained from industrial rice facilities, to estimate the distribution of contamination levels during industrial rice processing...
Fri, 01/29/2021 - 06:11
Author(s): Seyedeh Faezeh Taghizadeh, Ramin Rezaee, Majid Azizi, A. Wallace Hayes, John P. Giesy, Gholamreza Karimi The present study assessed the risk posed by simultaneous oral exposure to a mixture of 22 pesticides, 6 metals, and 16 Polycyclic Aromatic Hydrocarbons (PAHs) in fruits of date palms, to Iranian consumers. Various cultivars of dates were collected from six regions in Iran....
Thu, 01/28/2021 - 06:22
Author(s): Rabab A. Hakami, Ahmad Aqel, Ayman A. Ghafr, Zeid A. ALOthman, Ahmed-Yacine Badjah-Hadj-Ahmed Cereal crops comprise more than 60% of agricultural production worldwide. To ensure high production, the extensive use of pesticides is common practice. Analysis of pesticide residues in food and particularly cereals has become an essential requirement for consumers, producers, food inspectors...
Sun, 01/24/2021 - 22:15
Application of ultraviolet (UV) irradiation for the degradation of chemical contaminants in food products has gained more and more interest in the past two decades. The majority of the research in this field was on mycotoxins, especially aflatoxins and patulin, with limited studies on pesticide residues and other chemical contaminants in food. These studies have been focused on identifying the...
Fri, 01/22/2021 - 06:09
Author(s): Jun Wang, Hui-Ling Duan, Li Fan, You-Ming Lin, Jia-Ning Sun, Zhi-Qi Zhang In order to better remove the interfering substances in the vegetables, a type of tetraethylenepentamine modified multi-wall carbon nanotubes has been prepared. As-prepared materials contain amino-groups and organic chains, and magnetism is endowed by using physical blending method. Taking the magnetic...
Tue, 01/19/2021 - 02:02
In the present work, a new and efficient sample treatment method based on the combination of stirring-dependent magnetic dispersive solid phase microextraction and ferrofluid-based dispersive liquid–liquid microextraction has been developed for the extraction of some pyrethroid pesticides (bifenthrin, phenothrin, tetramethrin, cyhalothrin, permethrin, and cypermethrin) from fruit juices prior to...
Mon, 01/18/2021 - 22:12
This study assesses the extraction of 11 pharmaceuticals, 5 pesticides, 5 perfluoroalkyl substances and 2 illicit drugs in haemolymph from (Mytilus Galloprovincialis). Four extraction procedures using Phree™ Phospholipid Removal cartridges were tested using different volumes of methanol (400 μl and 600 μl) and acetonitrile (300 μl and 450 μl). The pollutants were determined by HPLC‐MS/MS. The use...
Mon, 01/18/2021 - 10:02
Fluorescent Pseudomonas spp. producing the antibiotic 2,4-diacetylphloroglucinol (DAPG) are ecologically important in the rhizosphere, as they can control phytopathogens and contribute to disease suppression. DAPG can also trigger a systemic resistance response in plants and stimulate root exudation and branching as well as induce plant-beneficial activities in other rhizobacteria. While studies...

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