Pesticide residues

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Thu, 11/05/2015 - 03:48
Abstract BACKGROUNDThis study investigates the level of design and operation of food safety management systems (FSMSs) of farmers and export traders in Kenya and Uganda. FSMS diagnostic tools developed for the fresh produce chain were used to assess the levels of respectively context riskiness, FSMS activities and system output in primary production (n = 60) and trade (n = 60). High-risk context...
Sun, 11/01/2015 - 00:00
Abstract Edible yeast, Lactobacillus plantarum and Mucor were used in traditional fermentation of three food materials wheat dough, pickled Chinese cabbage and Mao-tofu, respectively. The potencies of yeast, lactic acid bacteria and Mucor to promote the degradation of four organophosphorus pesticides (OPPs) including chlorpyrifos, dichlorvos, phorate and trichlorphon were...
Thu, 10/08/2015 - 05:45
Volume 32, Issue 11, November 2015, pages 1867-187410.1080/19440049.2015.1087058Mario Chiari
Fri, 09/18/2015 - 09:19
Journal of Agricultural and Food ChemistryDOI: 10.1021/acs.jafc.5b03327
Tue, 09/15/2015 - 01:21
Publication date: 1 April 2016 , Volume 196 Author(s): Tiele M. Rizzetti, Magali Kemmerich, Manoel L. Martins, Osmar D. Prestes, Martha B. Adaime, Renato Zanella In this study, different extraction procedures based on the QuEChERS method were compared for the multiresidue determination of pesticides in orange juice by ultra high performance liquid chromatography coupled to tandem...
Tue, 09/15/2015 - 01:21
Publication date: 1 April 2016 , Volume 196 Author(s): Niladri S. Chatterjee, Sagar Utture, Kaushik Banerjee, T.P. Ahammed Shabeer, Narayan Kamble, Suseela Mathew, K. Ashok Kumar This paper reports a selective and sensitive method for multiresidue determination of 119 chemical residues including pesticides and polyaromatic hydrocarbons (PAH) in high fatty fish matrix. The novel...
Sat, 09/05/2015 - 01:23
Publication date: Available online 4 September 2015 Food and Chemical Toxicology Author(s): Richard M. Evans, Martin Scholze, Andreas Kortenkamp The way in which mixture risk assessment (MRA) should be included in chemical risk assessment is a current topic of debate. We used data from 67 recent pesticide evaluations to build a case study using Hazard Index calculations to form risk...
Tue, 09/01/2015 - 01:25
Publication date: January 2016 , Volume 111 Author(s): Shreya Wani, Jeremy Barnes, Ian Singleton Fresh leafy produce, such as lettuce and coriander, are subject to post-harvest microbial contamination and decay. Because of increasing pesticide resistance and consumer pressures, alternative residue-free treatments, such as ozone, are being actively explored and encouraged to reduce...
Tue, 08/25/2015 - 01:23
Publication date: 1 March 2016 , Volume 194 Author(s): Jing Zhan, Jindong Li, Donghui Liu, Chang Liu, Genggeng Yang, Zhiqiang Zhou, Peng Wang A simple, rapid and effective method was developed based on matrix solid-phase dispersion (MSPD) for the determination of organochlorine pollutants including sixteen organochlorine pesticides (OCPs) and seven polychlorinated biphenyls (...
Tue, 08/25/2015 - 01:23
Publication date: February 2016 , Volume 60 Author(s): Rui Yu, Qiang Liu, Jingshuang Liu, Qicun Wang, Yang Wang This study was designed to investigate organophosphorus pesticides (OPs) concentrations in fresh vegetables and estimate potential health risks to inhabitants. A total of 214 samples of seven types of vegetables were collected from Changchun, the capital of Jilin province...
Tue, 08/18/2015 - 01:33
Bo Cui, Lei Feng, Zhenzhong Pan, Manli Yu, Zhanghua Zeng, Changjiao Sun, Xiang Zhao, Yan Wang, Haixin Cui Pesticides are essential agrochemicals used to protect plants from diseases, pests and weeds. However, the formulation defects of conventional pesticides cause food toxicity and ecological environmental problems. In this study, a novel, efficient and environmentally friendly formulation of...
Tue, 07/28/2015 - 03:20
In this work, a new method for the determination of 33 carbamates (including some metabolites) in different teas, chamomile, and other herbal products intended for infusions, by ultra-high-performance liquid chromatography tandem mass spectrometry, is proposed. Quick, easy, cheap, effective, rugged, and safe (QuEChERS) methodology was evaluated as sample treatment, and after...
Tue, 07/28/2015 - 03:20
In this study, a molecularly imprinted polymer that can selectively recognize dimethoate, isocarbophos, and methyl parathion was synthesized. Using this compound as sorbent, a new method for simultaneous determination of the three organophosphorus pesticides by molecularly imprinted solid-phase extraction coupled with high-performance liquid chromatography was established....
Fri, 07/24/2015 - 21:37
Niladri Sekhar Chatterjee, Kaushik Banerjee, Sagar Utture, Narayan Kamble, B. Madhusudana Rao, Satyen Kumar Panda, Suseela Mathew
Sat, 07/18/2015 - 01:39
Publication date: 1 February 2016 , Volume 192 Author(s): Lijie Wu, Mingzhu Hu, Zhanchao Li, Ying Song, Cui Yu, Hanqi Zhang, Aimin Yu, Qiang Ma, Ziming Wang A simple, rapid, solventless and cost-effective dynamic microwave-assisted extraction (DMAE) combined with continuous-flow microextraction (CFME) system was firstly assembled and validated for extraction of eight...
Fri, 07/17/2015 - 01:19
Publication date: 1 February 2016 , Volume 192 Author(s): Jing-Wen Li, Yu-Long Wang, Shan Yan, Xiu-Juan Li, Si-Yi Pan Calixarene was used as a functional monomer to fabricate a molecularly imprinted polymer (MIP) by sol–gel technique for solid-phase microextraction (SPME) of parathion-methyl and its structural analogs. The MIP-coated fiber possessed excellent thermal and chemical...
Fri, 07/17/2015 - 01:19
Publication date: January 2016 , Volume 59 Author(s): Gerardo Martínez-Domínguez , Roberto Romero-González , Francisco Javier Arrebola , Antonia Garrido Frenich A methodology has been developed to identify and quantify 257 toxic substances (including pesticides and mycotoxins) in diverse isoflavones supplements obtained from soy. Two different extraction procedures were compared, QuEChERS...
Fri, 07/17/2015 - 01:19
Publication date: January 2016 , Volume 59 Author(s): Yun Duan , Ni Guan , Pingping Li , Jianguo Li , Jinhui Luo To monitor pesticide residues in cowpea and assess the potential public health risk, 433 fresh cowpea samples from Hainan province (2012 and 2013) were collected and the presence of 20 organophosphoate, carbamate and pyrethroid was determined. A screening analysis consisting...
Thu, 07/02/2015 - 06:20
Publication date: Available online 24 June 2015 Trends in Food Science &amp; Technology Author(s): N.N. Misra Background The use of pesticides has stabilised the food production to a great extent and their usage cannot be avoided anymore. Nevertheless, common food processing operations always allowed dissipating pesticide residues in foods to some extent. Within the food science...
Wed, 07/01/2015 - 01:25
The purpose of this study was to investigate the fate of organophosphorus pesticidesOPs) during camellia oil production process, from camellia fruit to the final oil product. The results showed that the OPs were mainly distributed in the peel of camellia fruit, basically above 40% after the pesticide application of 7 d (P < 0.05). A small amount of OPs could enter into the seed and convert to...
Thu, 06/18/2015 - 01:30
Aims To determine the varieties and concentrations of pesticides by detecting the changes of microalgae components using Raman microspectroscopy technology. Methods and Results Raman microspectroscopy technology was used to detect the internal elements and characteristics of Chlorella pyrenoidosa. Partial least squares (PLS) was used to build the model between Raman signals of Chlorella...
Fri, 06/05/2015 - 01:24
A convenient analytical method for quantitative characterization of 46 pesticides in fresh peppermint (a plant with high chlorophyll content) has been developed. The plant samples were extracted with acetonitrile and then with graphitized carbon black (GCB), and primary–secondary amine (PSA) was added to dispersive solid phase extraction tubes in order to reduce chlorophyll...
Thu, 06/04/2015 - 06:20
LWT
Publication date: October 2015 Source:LWT - Food Science and Technology, Volume 63, Issue 2 Author(s): Minmin Li , Yanan Liu , Bei Fan , Jia Lu , Yan He , Zhiqiang Kong , Yulong Zhu , Qiu Jian , Fengzhong Wang Food safety, especially with respect to pesticide-contaminated products, has received considerable attention in recent years. In this study, the effects of food processing...
Sat, 05/23/2015 - 01:21
Publication date: 1 January 2016 , Volume 190 Author(s): Tomasz Tuzimski , Tomasz Rejczak In this study, the solid-phase extraction/quick, easy, cheap, effective, rugged and safe (SPE/QuEChERS) technique was adapted to develop a simple sample treatment for multi-residue pesticide analysis of edible oils. The proposed method is based on liquid–liquid partitioning with acetonitrile followed...
Fri, 05/22/2015 - 01:19
Publication date: 1 January 2016 , Volume 190 Author(s): Luiz Alberto Bandeira de Oliveira , Henrique Poltronieri Pacheco , Rodrigo Scherer The aim of this work was to monitor flutriafol and pyraclostrobin residues in Brazilian green coffees. More than 10,000 samples were analyzed. The pesticides were extracted using the QuEChERS method and analyzed by LC–MS/MS. The validated method is...
Tue, 05/19/2015 - 12:32
LWT
Publication date: January 2013 Source:LWT - Food Science and Technology, Volume 50, Issue 1 Author(s): Maria Rosecler Miranda Rossetto , Tânia Mizuzo Shiga , Fabio Vianello , Giuseppina Pace Pereira Lima The limited availability of foods that are free of pesticides has led Brazil to search for alternative production methods to meet the desires of consumers. Currently, organic cultivation...
Thu, 05/14/2015 - 03:20
A rapid analytical method for the simultaneous determination of 62 pesticides in edible fungi was established based on modified QuEChERS (quick, easy, cheap, effective, rugged, and safe) sample preparation method with gas chromatography–triple mass spectrometry (GC–MS/MS). Before extracting the target compounds from edible fungi, the dry samples were soaked in distilled water...
Thu, 04/16/2015 - 01:19
Publication date: Available online 15 April 2015 Food and Chemical Toxicology Author(s): Davi Felipe Farias , Martônio Ponte Viana , Gustavo Ramos Oliveira , Vanessa Olinto Santos , Clidia Eduarda Moreira Pinto , Daniel Araújo Viana , Ilka Maria Vasconcelos , Maria Fátima Grossi-de-Sa , Ana Fontenele Urano Carvalho Cry8Ka5 is a mutant protein from Bacillus thruringiensis ( Bt ) that...
Fri, 04/10/2015 - 01:21
The fast measurement of pesticide residues on fruits peels is crucial, for it is harmful for both human health and environment. In this study, we used apples and chlorpyrifos as the research materials and analyzed the volatiles from apples via its infrared spectra. As the low concentration of the volatiles, multi-reflecting mirrors were used to enhance the sensitivity of the...
Fri, 01/30/2015 - 01:18
Publication date: July 2015 , Volume 53 Author(s): Joice Sifuentes Dos Santos , Thiago Guilherme Schwanz , Andreia Niederauer Coelho , Marla Cristina Heck-Marques , Marisa Marroni Mexia , Tatiana Emanuelli , Ijoni Costabeber The estimated daily intake (EDI) of organochlorine (OC) pesticides (HCB, α-HCH, lindane, aldrin, p,p′-DDE, p,p′-DDD, and o,p′-DDT) through consumption of dairy...
Fri, 01/30/2015 - 00:08
There is an increasing interest in recent years in using novel nanomaterials as cost-effectivesensitive, and reproducible substrate for surface-enhanced Raman spectroscopy (SERS) applications. In this study, a novel SERS substrate was developed by assembling gold nanorods into standing arrays on a gold-coated silicon slide. The standing nanorod arrays were closely packed on the gold film,...
Wed, 01/21/2015 - 01:16
The metal-organic framework ∞[(Nd0.9Eu0.1)2(DPA)3(H2O)3] was tested for extraction of thiamethoxam, thiacloprid, thiophanate-methyl, teflubenzuron, and bifenthrin from soursop exotic fruit (Annona muricata), with analysis using liquid chromatography with UV diode array detector (DAD). Experiments were carried out at one fortification level (0.5 mg kg−1, n = 5) and resulted in...
Wed, 01/21/2015 - 01:16
For simultaneously monitoring two classes of organophosphorus pesticide residues in food samples, a polyclonal antibody against a dual-generic hapten immunogen, which was prepared by conjugating two generic haptens (O,O-dimethyl thiophosphate hapten and O,O-diethyl phosphate hapten) to the same carrier protein BSA, was raised and used to develop a broad-specificity...
Wed, 01/21/2015 - 01:16
In the scope of this study, pesticide residue distribution within a fruit and the possible error deriving from sample preparation step were demonstrated with the analysis of benomyl residues in peel, pulp, and seeds of papaya fruits treated post-harvest. Benomyl residue, measured as carbendazim, in corresponding sections of peel and pulp of papaya fruits ranged from 0.178 to...
Wed, 01/21/2015 - 01:16
Publication date: 15 June 2015 , Volume 177 Author(s): Gerardo Martínez-Domínguez , Antonio José Nieto-García , Roberto Romero-González , Antonia Garrido Frenich A QuEChERS (quick, easy, cheap, effective, rugged, and safe) based method has been evaluated and validated for the determination and quantification of approximately 100 LC-amenable pesticides in nutraceutical products obtained...
Wed, 01/21/2015 - 01:16
Publication date: May 2015 , Volume 51 Author(s): L.G. Skretteberg , B. Lyrån , B. Holen , A. Jansson , P. Fohgelberg , K. Siivinen , J.H. Andersen , B.H. Jensen Fruits and vegetables from Souteast Asia were analysed for the presence of pesticide residues. A total of 721 samples of 63 different commodities were collected in 2011. The products were imported to Denmark, Finland, Norway...
Wed, 01/21/2015 - 01:16
Publication date: June 2015 , Volume 52 Author(s): Klementina Kirezieva , Pieternel A. Luning , Liesbeth Jacxsens , Ana Allende , Gro S. Johannessen , Eduardo César Tondo , Andreja Rajkovic , Mieke Uyttendaele , Martinus A.J.S. van Boekel Increase in global trade raised questions regarding status of food safety management systems in fresh produce companies, especially from developing...
Wed, 01/21/2015 - 01:16
Aims Organophosphorus pesticides are widely used in agriculture. Accordingly decontamination of these pesticides and their residual in environment is an important aim of researchers. One of the best approaches is enzymatic detoxification of these compounds with organophosphorus hydrolase (OPH). The immobilization of OPH on environmentally friendly supports is of great importance for developing...

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