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pesticideresidues, etc ; antibodies; chlorpyrifos; detection limit; dielectric spectroscopy; electrochemistry; food chemistry; food matrix; glyphosate; high fat foods; immunoassays; low fat foods; portable equipment; Show all 13 Subjects
Abstract:
... On-field detection of pesticide residue in complex-food matrices is a challenge when it comes to analytical detection involving multistep extraction and purification. In this study, we test the feasibility of an electrochemical portable device for detection of spiked pesticides Glyphosate (Glyp) and Chlorpyrifos (Chlp) in low-fat and high-fat food matrix. The immunoassay based two-plex sensing pla ...
pesticideresidues, etc ; animals; food safety; pesticides; United Kingdom; Show all 5 Subjects
Abstract:
... A total of 33,911 samples with determined pesticide residues were collated and analysed in the UK monitoring programme to determine trends in pesticide residue levels in imported foods during the period of 2000–2020. 17,027 of those samples (50.2%) contained detectable residues while 1,126 (3.3%) exceeded maximum residue levels (MRLs). An increased trend and a significant shift before and after 20 ...
pesticideresidues, etc ; carbendazim; models; pesticides; spectroscopy; support vector machines; Show all 6 Subjects
Abstract:
... Feature extraction is a key factor to detect pesticides using terahertz spectroscopy. Compared to traditional methods, deep learning is able to obtain better insights into complex data features at high levels of abstraction. However, reports about the application of deep learning in THz spectroscopy are rare. The main limitation of deep learning to analyse terahertz spectroscopy is insufficient le ...
pesticideresidues, etc ; chemical species; detection limit; fonofos; spectroscopy; thiram; triazophos; Show all 7 Subjects
Abstract:
... Rapid and on-site Raman spectroscopic identification and quantification of pesticide residues have been restricted to the low instrumental sensitivity of a portable Raman instrument, and no ideal platforms have been reported for analyzing pesticides on real sample surfaces. An efficient method to improve the detection sensitivity is to fabricate a highly sensitive surface-enhanced Raman scattering ...
pesticideresidues, etc ; case studies; equipment; liquid chromatography; mass spectrometry; pesticides; Show all 6 Subjects
Abstract:
... Liquid chromatography coupled to mass spectrometry (LC-MS) is a powerful technique commonly used for pesticide residue analysis in agri-food matrices. Despite the fact it has several advantages, one of the main problems is the transferability of the data from one analytical equipment to another for identification and quantitation purposes. In this study, instrument-agnostizing methodology was used ...
pesticideresidues, etc ; Raman spectroscopy; detection limit; gold; silver; thiram; wavelengths; Show all 7 Subjects
Abstract:
... Developing SERS substrates based on individual gold and silver metals, either with rough surfaces or bare nanoparticles, has certain limitations in practical analysis applications. In order to improve the range of applications of the noble metallic substrates, a comprehensive approach has been proposed for preparing non-traditional SERS nano-substrates by combining tip-enhanced gold nanostars and ...
pesticideresidues, etc ; Raman spectroscopy; acetamiprid; apples; cellulose; dimethoate; gold; nanocrystals; nanoflowers; Show all 9 Subjects
Abstract:
... Nanocellulose holds considerable promise as an effective surface-enhanced Raman scattering (SERS) substrate for sensitive detection of trace targets. Flexible and high-sensitivity two-dimensional (2D) SERS substrates based on nanocrystalline cellulose (CNC) film were successfully developed via self assembly of two plasma nanoparticles: gold nanoflowers (AuNFs) and silver-coated gold nanocubes (Au@ ...
pesticideresidues, etc ; fruits; pesticide use reduction; pesticides; questionnaires; statistical analysis; surveys; Show all 7 Subjects
Abstract:
... One disadvantage of pesticide use in agriculture are the residues that remain in food and drinking water. In addition to analyzing consumer intolerance to pesticide residues for various food groups (fruit/vegetables, cereals/cereal products, and potatoes) according to the degree of product processing, the present study investigates consumer knowledge and attitudes regarding the EU's regulations on ...
pesticideresidues, etc ; analytical methods; electrochemistry; electrodes; environmental protection; food safety; graphene; pesticides; Show all 8 Subjects
Abstract:
... Pesticide testing is an important topic in environmental protection and food safety. The development of green, accurate and reliable pesticide residue detection methods is an important technical support for implementing of agricultural quality supervision. Electrochemical sensors are a very promising analytical method for pesticide detection due to their high sensitivity, speed, low cost and porta ...
pesticideresidues, etc ; adsorbents; agrochemicals; carotenoids; food science; markets; pesticides; tandem mass spectrometry; technology; Show all 9 Subjects
Abstract:
... Analysis of agrochemical residues in red chilli powder is always considered difficult because of higher matrix interference due to carotenoid pigments and other co-extractives. During the sample preparation, matrix components were co-extracted along with the target compounds leading to frequent source cleaning, changing of liner and column. Efforts were made to improve the chromatographic performa ...
Helena Sandoval-Insausti; Yu-Han Chiu; Yi-Xin Wang; Jaime E. Hart; Shilpa N. Bhupathiraju; Lidia Mínguez-Alarcón; Ming Ding; Walter C. Willett; Francine Laden; Jorge E. Chavarro
pesticideresidues, etc ; USDA; cardiovascular diseases; death; diabetes; environment; exposure pathways; mortality; pesticides; risk; Show all 10 Subjects
Abstract:
... Intake of conventionally grown fruits and vegetables (FVs) is an important route of exposure to pesticide residues in the general population. However, whether health risk stemming from exposure to pesticides through diet could offset benefits of consuming FVs is unclear.We assessed the association of FV intake, classified according to their pesticide residue status, with total and cause-specific m ...
pesticideresidues, etc ; Vigna subterranea; chlorinated hydrocarbons; health effects assessments; organochlorine pesticides; risk; Nigeria; Show all 7 Subjects
Abstract:
... Two species of freshly harvested Bambara nut were analyzed for organophosphate and organochlorine pesticide residue using GC-FID and GC-ECD. The risk associated with the consumption of the Bambara nut was evaluated using the health risk index (HRI) and the probable cancer risk (PCR). A maximum of thirteen (13) organochlorines and eight (8) organophosphate pesticides were determined from both speci ...
pesticideresidues, etc ; atomic force microscopy; bioavailability; chitosan; electrons; ethephon; ethylene; fruits; microstructure; polymers; spectroscopy; Show all 11 Subjects
Abstract:
... The microstructure changes (such as micro defects and free volume, etc.) is a deep factor that determines the sustained release behavior of polymer film. However, there are few reports exploring the micro defects of sustained-release materials. Herein, we develop a facile method to non-destructive monitoring and sustained-release ethylene within chitosan. The comprehensive means of positron annihi ...
pesticideresidues, etc ; biosensors; chromatography; food chemistry; mechanism of action; microextraction; pesticide persistence; plant-based foods; Show all 8 Subjects
Abstract:
... Pesticides are indispensably essential in agricultural practices. Traditional pesticides and environmentally friendly pesticides both are used to control the damage caused by pests and diseases. Conventional procedures were carried out to detect pesticide residues using chromatography and spectrophotometric techniques. Innovative extractions (micro-extraction) and detection technologies (biosensor ...
pesticideresidues, etc ; diazinon; ethion; food preservation; grapes; hexaconazole; penconazole; pesticide application; phosalone; tandem mass spectrometry; Show all 10 Subjects
Abstract:
... Drying is one of the best food preservation methods, especially for grapes. This study aimed to determine the fate of pesticides after grapes are being subjected to different drying methods, namely, sun-, oven-, shade-, and alkaline-drying, which are employed in raisin production. Pesticide residues were determined by gas chromatography–tandem mass spectrometry (GC–MS/MS). Washing before drying de ...
pesticideresidues, etc ; DNA; acetamiprid; biosensors; condensation reactions; electrochemiluminescence; electrodes; food chemistry; food safety; magnetism; melamine; Show all 11 Subjects
Abstract:
... The trace detection of pesticide residue becomes particularly important since increasing attentions have been attached to food safety. Herein, we developed an electrochemiluminescence (ECL) covalent organic framework (COF) based-biosensor for trace pesticide detection coupling with CRISPR/Cas12a-mediated signal accumulation strategy. Firstly, the target conversion was carried out with an aptamer-a ...
pesticideresidues, etc ; detection limit; food chemistry; liquid chromatography; markets; pesticides; risk assessment; tandem mass spectrometry; Show all 8 Subjects
Abstract:
... In the present study, QuEChERS method was optimized and validated for determination of 260 pesticides by liquid chromatography–tandem mass spectrometry (LC–MS/MS). The method had a suitable linearity (R² ≥ 0.99). Limit of detection (LOD) and limit of quantification (LOQ) were ranged from 0.56 to 2.99 µg kg⁻¹ and 1.88 to 9.99 µg kg⁻¹ respectively. Average recoveries varied from 71.14% to 118.83%. R ...
pesticideresidues, etc ; absorption; electric current; electrochemistry; imidacloprid; light; photocatalysis; photocatalysts; photolysis; pollution; research; semiconductors; synergism; Show all 13 Subjects
Abstract:
... Imidacloprid as a widely used neonicotinoid insecticide can cause harmful pesticide residue inevitably. Metal-organic frameworks (MOFs) were innovatively composited to improve the light absorption and degradation performance of Bi₂WO₆ semiconductor, which expanded the photodegradation application in solving environmental problems. Based on the synergistic effect of Bi₂WO₆ and NH₂-MIL-88B(Fe), a Bi ...
Ayrton M.S. Santos; Raquel C. Faria; Igor Pereira; Leomir A.S. de Lima; Carla M. Leal; Abadia R. Nascimento; Rosineide C. Simas; Nerilson M. Lima; Boniek G. Vaz
pesticideresidues, etc ; Solanum lycopersicum; calibration; cyazofamid; food composition; fruits; paper; principal component analysis; quantitative analysis; tomatoes; Show all 10 Subjects
Abstract:
... The determination of pesticide residues in tomatoes is usually performed by GC–MS and LC–MS, which provide high analytical performance but require several steps of sample preparation. Thus, this work employed a simpler and faster technique, the Paper Spray Ionization Mass Spectrometry (PSI-MS), combined with Principal Component Analysis (PCA) to differentiate the tomatoes varieties and for quantif ...
... Rice false smut is known as the cancer of rice. The disease is becoming increasingly prominent and is one of the major diseases in rice. However, prevention and treatment of this disease relies on “Centralized pesticide spraying”. However, indiscriminate spraying leads to more pesticide residue, and impacts ecological and food safety. To obtain more objective results, different experimental planti ...