scholarly journals Trade impact of maximum residue limits in fresh fruits and vegetables

Food Policy ◽  
2022 ◽  
Vol 106 ◽  
pp. 102203
Author(s):  
Mina Hejazi ◽  
Jason H. Grant ◽  
Everett Peterson
Keyword(s):  
Fruits And Vegetables ◽  
Maximum Residue Limits

Determination of Organophosphorus and Carbamate Insecticides in Fresh Fruits and Vegetables by High-Performance Thin-Layer Chromatography-Multienzyme Inhibition Assay

2012 ◽  
Vol 95 (5) ◽  
pp. 1371-1377 ◽  
Author(s):  
Rami Akkad ◽  
Wolfgang Schwack
Keyword(s):  
High Performance ◽  
Fruits And Vegetables ◽  
Inhibition Assay ◽  
Hptlc Plate ◽  
Liver Esterase ◽  
Carbamate Insecticides ◽  
Maximum Residue Limits ◽  
Primary Secondary Amine ◽  
Layer Chromatography

Abstract HPTLC-enzyme inhibition assay was applied to different fruit and vegetable samples after individual spiking with organophosphate and carbamate pesticides at their maximum residue limits documented by the European Commission. Samples were extracted according to the QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) method, including cleanup by primary secondary amine sorbent. Additional cleanup was performed on the HPTLC plate by a prechromatographic step to separate most coextracted matrix compounds from 20 different pesticides under study. With both rabbit liver esterase and cutinase from Fusarium solani pisi as enzyme sources, mean recoveries from apples, cucumbers, grapes, nectarines, plums, tomatoes, and lemons were in the ranges 86–109, 95–129, 96–114, and 90–111% for chlorpyrifos, paraoxon, parathion, and pirimicarb, respectively, with a mean RSD of 8.5% for all samples.

scholarly journals Monitoring of Pesticide Residues in Egyptian Fruits and Vegetables During 1996

2001 ◽  
Vol 84 (2) ◽  
pp. 519-531 ◽  
Author(s):  
Salwa M Dogheim ◽  
Sohair A Gad Alla ◽  
Ashraf M El-Marsafy
Keyword(s):  
Organochlorine Pesticides ◽  
Pesticide Residues ◽  
Fruits And Vegetables ◽  
Synthetic Pyrethroids ◽  
Fruit And Vegetable ◽  
Local Markets ◽  
Vegetable Samples ◽  
Maximum Residue Limits

Abstract Samples of the most common fruits and vegetables were collected from 8 local markets in 6 governorates. These 1579 samples were analyzed for residues of 53 pesticides, which included organophosphorus and organonitrogen compounds and some synthetic pyrethroids. Samples were also analyzed for residues of organochlorine pesticides, although they had been prohibited from use several years ago. Only 510 of the 1579 samples were analyzed for dithiocarbamate pesticide residues, which were determined as CS2. Overall, 76.1% of the total analyzed samples had no detectable residues, 23.9% contained detectable residues, and 2.59% contained residues that exceeded maximum residue limits. For individual crops, contaminated samples ranged from 0 to 96% of the number of samples analyzed. However, the highest violative percentage for samples of individual crops was 12.5. Chlorpyrifos, carbaryl, dimethoate, bromopropylate, and profenofos were the violative pesticides determined in fruit and vegetable samples. The results of the current study demonstrated that no restricted or banned pesticides such as DDT, HCH, and their isomers were found in any of the samples analyzed. Dithiocarbamate residues were detected in 9.4% of the 510 samples analyzed, with a violative percentage of 0.39, representing one grape sample and one peach sample.

scholarly journals In Situ Real-Time Tracing of Organophosphorus Pesticides in Apples by Solid-Phase Microextraction with Developed Sampling-Rate Calibration

Molecules ◽  
2019 ◽  
Vol 24 (24) ◽  
pp. 4444 ◽  
Author(s):  
Xiao-Fan Zhang ◽  
Li-Li Zhao ◽  
Ming-Quan Huang ◽  
Xiu-Juan Li ◽  
Si-Yi Pan
Keyword(s):  
Solid Phase Microextraction ◽  
Fruits And Vegetables ◽  
Solid Phase ◽  
Organophosphorus Pesticides ◽  
Sampling Rate ◽  
Calibration Method ◽  
Maximum Residue Limits ◽  
In Vivo Analysis

An in situ tracing study based on solid-phase microextraction (SPME) was conducted to investigate the uptake and elimination of organophosphorus pesticides in apples. A matrix-compatible polydimethylsiloxane/poly(styrene-co-divinylbenzene)/polydimethylsiloxane fiber was produced to meet the needs of in situ sampling. The fiber had high extraction ability, good sensitivity and accuracy with respect to the analytes in apple pulp, and could be used 85 times. Although the sampling rate was changing over time, quantification was still achieved by the sampling rate calibration method. Some factors that affect its applicability were studied. The limits of detection were 0.18 ng/g for diazinon and 0.20 ng/g for chlorpyrifos, rather lower than the maximum residue limits of the National Food Safety Standard of China (GB 2763-2016) and the European Commission (Reg.(EU) No 834/2013, 2018/686). The accuracy of in situ SPME quantification was verified by comparing with the results obtained by the traditional liquid–liquid extraction method. In this work, the in situ sampling method is developed using apples, diazinon, and chlorpyrifos as a model system; however, this method can be used for in vivo analysis of fruits and vegetables for nutrition and safety monitoring.

scholarly journals Evaluation of Some Pesticide Residues in Fruits import by High Performance Liquid Chromatography

2017 ◽  
Vol 27 (4) ◽  
Author(s):  
Lamees M. A. Salman ◽  
Iyad Abdul-Muhsan Ahmed
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Pesticide Residues ◽  
High Performance ◽  
Fruits And Vegetables ◽  
Current Knowledge ◽  
Maximum Residue Limits ◽  
Exposure Risks ◽  
Core Mixture

Pesticide residues have been found in various fruits and vegetables.  This study collected 24 samples and reported a method based on High Performance Liquid Chromatography (HPLC). For determination of pesticide residues used in Some fruits which were collected from different markets of Baghdad city to make) 24)  samples from (peel , core, mixture) for each type of fruits markets as:  Oranges( Egypt , Africa), Pomegranate ( Egypt), Mango ( Kenya ), Pears (China),  Plum fruits ( Africa ) , Kiwi (Turkey ) .That detective of ( 5 ) different  pesticides (diazinon,  malathion, chlorpyrifos ,parathion  and cypermethrin). The results were detected of multi-residues of  pesticides on the fruit in ( peel , core , mixture ) may be in the limit of Maximum residue limits(MRL) or higher of it   . The pesticides detected that exceeding the limits are: cypermethrin  in Kiwi (peel, core and mixture)at(0.204,0.038, 0.537), in pomegranate detected in (peel and mixture) at (0.509,0.189) mg/kg , Diazinon detccted in Egyptian orange in (peel ,core and mixture) at (0.031,0.207, 0.099) mg/kg . Malathion and Parathion was not detected at any type of fruits and  that results was compared with codex of FAO/WHO(2013). That data is important to monitor residues in food and to fill gaps in current knowledge would be helpful in assessing human exposure risks from ingestion of contaminated Fruits Imported to our country.

scholarly journals Evaluation of Some Pesticide Residues in Fruits import by High Performance Liquid Chromatography

2017 ◽  
Vol 27 (4) ◽  
Author(s):  
Lamees Munef Abdul-Latef ◽  
Iyad Abdul-Muhsan Ahmed
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Pesticide Residues ◽  
High Performance ◽  
Fruits And Vegetables ◽  
Current Knowledge ◽  
Maximum Residue Limits ◽  
Exposure Risks ◽  
Core Mixture

Pesticide residues have been found in various fruits and vegetables.  This studycollected 24 samples and reported a method based on High Performance Liquid Chromatography (HPLC). For determination of pesticide residues used in Some fruits which were collected from different markets of Baghdad city to make) 24) samples from (peel , core, mixture) for each type of fruits markets as:  Oranges( Egypt , Africa), Pomegranate ( Egypt), Mango ( Kenya ), Pears (China),  Plum fruits ( Africa ) , Kiwi (Turkey ) .That detective of ( 5 ) different  pesticides (diazinon,  malathion, chlorpyrifos ,parathion  and cypermethrin). The results were detected of multi-residues of  pesticides on the fruit in ( peel , core , mixture ) may be in the limit of Maximum residue limits(MRL) or higher of it   . The pesticides detected that exceeding the limits are: cypermethrin  in Kiwi (peel, core and mixture)at(0.204,0.038, 0.537), in pomegranate detected in (peel and mixture) at (0.509,0.189) mg/kg , Diazinondetccted in Egyptian orange in (peel ,core and mixture) at (0.031,0.207, 0.099) mg/kg . Malathion and Parathion was not detected at any type of fruits and  that results was compared with codex of FAO/WHO(2013). That data is important to monitor residues in food and to fill gaps in current knowledge would be helpful in assessing human exposure risks from ingestion of contaminated Fruits Imported to our country .

scholarly journals Monitoring Pesticide Residues in Egyptian Fruits and Vegetables in 1995

1999 ◽  
Vol 82 (4) ◽  
pp. 948-955 ◽  
Author(s):  
Salwa M Dogheim ◽  
Sohair A Gad Alla ◽  
Ashraf M El-Marsafy ◽  
Safaa M Fahmy
Keyword(s):  
Organochlorine Pesticide ◽  
Pest Control ◽  
Pesticide Residues ◽  
Fruits And Vegetables ◽  
Synthetic Pyrethroids ◽  
Fruit And Vegetable ◽  
Vegetable Samples ◽  
Codex Committee ◽  
Maximum Residue Limits ◽  
Organochlorine Pesticide Residues

Abstract Organophosphorus, dithiocarbamates, and some synthetic pyrethroids pesticides, which are commonly used in Egypt for pest control, were monitored, as well as persistent organochlorines, which had been prohibited from use several years ago. Fruit and vegetable samples (397) were collected from 8 local markets and examined for 52 pesticides. Of all analyzed samples, 42.8% contained detectable residues, of which 1.76% exceeded their maximum residue limits (MRLs). The rates of contamination with the different pesticides were 0-86%. However, violation rates among contaminated products were very low, ranging from 0 to 4.6%. In general, organochlorine pesticide residues were not detected in most samples. Dithiocarbamate residues were found in 70.4% of 98 samples analyzed for dithiocarbamates, but only one grape sample had residues exceeding the MRL established by the Codex Committee on Pesticide Residues.

Flavonoids in adipose tissue inflammation and atherosclerosis: one arrow, two targets

2020 ◽  
Vol 134 (12) ◽  
pp. 1403-1432 ◽  
Author(s):  
Manal Muin Fardoun ◽  
Dina Maaliki ◽  
Nabil Halabi ◽  
Rabah Iratni ◽  
Alessandra Bitto ◽  
...  
Keyword(s):  
Adipose Tissue ◽  
Fruits And Vegetables ◽  
Metabolic Diseases ◽  
Therapeutic Agents ◽  
Adipose Tissue Inflammation ◽  
Cellular Mechanisms ◽  
Tissue Inflammation ◽  
Cholesterol Levels ◽  
Naturally Occurring ◽  
Pro Inflammatory Cytokines

Abstract Flavonoids are polyphenolic compounds naturally occurring in fruits and vegetables, in addition to beverages such as tea and coffee. Flavonoids are emerging as potent therapeutic agents for cardiovascular as well as metabolic diseases. Several studies corroborated an inverse relationship between flavonoid consumption and cardiovascular disease (CVD) or adipose tissue inflammation (ATI). Flavonoids exert their anti-atherogenic effects by increasing nitric oxide (NO), reducing reactive oxygen species (ROS), and decreasing pro-inflammatory cytokines. In addition, flavonoids alleviate ATI by decreasing triglyceride and cholesterol levels, as well as by attenuating inflammatory mediators. Furthermore, flavonoids inhibit synthesis of fatty acids and promote their oxidation. In this review, we discuss the effect of the main classes of flavonoids, namely flavones, flavonols, flavanols, flavanones, anthocyanins, and isoflavones, on atherosclerosis and ATI. In addition, we dissect the underlying molecular and cellular mechanisms of action for these flavonoids. We conclude by supporting the potential benefit for flavonoids in the management or treatment of CVD; yet, we call for more robust clinical studies for safety and pharmacokinetic values.

Homocysteine Levels Show Significant Differences among Mediterranean Dietary Quality Index Variables Compared to Folate and Vitamin B12 Status in Women

2015 ◽  
Vol 85 (3-4) ◽  
pp. 202-210 ◽  
Author(s):  
Ivona Višekruna ◽  
Ivana Rumbak ◽  
Ivana Rumora Samarin ◽  
Irena Keser ◽  
Jasmina Ranilović
Keyword(s):  
Mediterranean Diet ◽  
Diet Quality ◽  
Quality Index ◽  
Fruits And Vegetables ◽  
Reproductive Age ◽  
Dietary Quality ◽  
Vitamin B ◽  
Cross Sectional ◽  
Poor Diet ◽  
The Mediterranean

Abstract. Results of epidemiologic studies and clinical trials have shown that subjects following the Mediterranean diet had lower inflammatory markers such as homocysteine (Hcy). Therefore, the aim of this cross-sectional study was to assess female diet quality with the Mediterranean diet quality index (MDQI) and to determine the correlation between MDQI, homocysteine, folate and vitamin B12 levels in the blood. The study participants were 237 apparently healthy women (96 of reproductive age and 141 postmenopausal) between 25 and 93 years. For each participant, 24-hour dietary recalls for 3 days were collected, MDQI was calculated, and plasma Hcy, serum and erythrocyte folate and vitamin B12 levels were analysed. Total MDQI ranged from 8 to 10 points, which represented a medium-poor diet for the subjects. The strength of correlation using biomarkers, regardless of group type, age, gender and other measured parameters, was ranked from best (0.11) to worst (0.52) for olive oil, fish, fruits and vegetables, grains, and meat, in this order. Hcy levels showed the best response among all markers across all groups and food types. Our study shows significant differences between variables of the MDQI and Hcy levels compared to levels of folate and vitamin B12 in participants with medium-poor diet quality, as evaluated according to MDQI scores.

Sign in / Sign up

Export Citation Format

Share Document