scholarly journals Assessment of pesticide residue levels among locally produced fruits and vegetables in Monze district, Zambia

2017 ◽  
Vol 4 (1) ◽  
Author(s):  
Mildred Mwanja ◽  
Choolwe Jacobs ◽  
Allan Rabson Mbewe ◽  
Nosiku Sipilanyambe Munyinda
Keyword(s):  
Pesticide Residue ◽  
Fruits And Vegetables ◽  
Residue Levels

Monitoring Pesticide Residues in Fruits and Vegetables at Two of the Biggest Fresh Produce Markets in Africa

2016 ◽  
Vol 79 (11) ◽  
pp. 1938-1945 ◽  
Author(s):  
MBULAHENI T. MUTENGWE ◽  
LIZYBEN CHIDAMBA ◽  
LISE KORSTEN
Keyword(s):  
Pesticide Residue ◽  
Fruits And Vegetables ◽  
Fresh Produce ◽  
Monitoring Program ◽  
Agricultural Practices ◽  
Perceived Safety ◽  
Pesticide Monitoring ◽  
Chemical Residues ◽  
Maximum Residue Levels ◽  
Residue Levels

ABSTRACTIn most countries, fresh produce sold at local markets is usually not analyzed for agricultural chemical residues as export products are, which raises concerns about the perceived safety levels of local food supplies in contrast with exported products. The aim of this study was to determine pesticide residue levels in fruits and vegetables sold at two of the biggest fresh produce markets in Africa. A total of 199 fruit and vegetable samples were collected between 2012 and 2014 and analyzed for 74 pesticides commonly used in the horticultural sector. Of the samples analyzed, 91% were compliant with set maximum residue levels (MRLs). The remaining samples either contained unregistered chemicals (8%) or exceeded set MRL values (1%). Products containing more than one pesticide residue constituted 4.02% of all samples tested. Imazalil and iprodione were found to be the most frequently detected pesticides (12 samples each). Boscalid, endosulfan, profenofos, and procymidone were associated with the most noncompliance, including exceeding MRL values or being unregistered for the specific crop. The establishment of a national pesticide monitoring program is essential for the country and would ensure that pesticides are used in accordance with good agricultural practices.

Food and Drug Administration Pesticide Residue Monitoring of Foods: 1978-1982

1991 ◽  
Vol 74 (2) ◽  
pp. 265-272
Author(s):  
Norma J Yess ◽  
Marcia G Houston ◽  
Ellis L Gunderson
Keyword(s):  
Pesticide Residue ◽  
Pesticide Residues ◽  
Dairy Products ◽  
Fruits And Vegetables ◽  
Dietary Intakes ◽  
International Agencies ◽  
Regulatory Limits ◽  
Diet Study ◽  
Residue Levels ◽  
Milk And Dairy Products

Abstract Pesticide residues In foods are reported for the 5-year period 1978-1982 [fiscal years (FY) 78-82]. Results were compiled from the 2 complementary elements that comprise the Food and Drug Administration's (FDA) program for monitoring pesticide residues In foods. Under regulatory monitoring, which focuses on residues in raw agricultural commodities, a total of 49 877 samples (30 361 domestic and 19 516 Import) that Included fresh fruits and vegetables, grains, milk and dairy products, seafoods, and a variety of processed foods were analyzed. No residues were found in about 55 and 44% of the domestic and Import samples, respectively. About 3% of the domestic and 7% of the import samples were classed as violative. Data from the Total Diet Study, which Is conducted to determine dietary Intakes of a variety of chemicals, showed that residues of 42 pesticides were found in 1044 composites of table-ready foods. Results of FDA's monitoring for FY78-82 demonstrate that pesticide residue levels in the U.S. food supply were generally well below regulatory limits, and dietary Intakes were manyfold lower than the Acceptable Dally Intakes established by International agencies.

scholarly journals Spatiotemporal Visualization of Insecticides and Fungicides within Fruits and Vegetables Using Gold Nanoparticle-Immersed Paper Imprinting Mass Spectrometry Imaging

Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1327
Author(s):  
Run Qin ◽  
Ping Li ◽  
Mingyi Du ◽  
Lianlian Ma ◽  
Yudi Huang ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Food Safety ◽  
Gold Nanoparticle ◽  
Pesticide Residue ◽  
Rational Design ◽  
Mass Spectrometry Imaging ◽  
Fruits And Vegetables ◽  
Detection Methods ◽  
Safety Issues ◽  
Spatiotemporal Visualization

Food safety issues caused by pesticide residue have exerted far-reaching impacts on human daily life, yet the available detection methods normally focus on surface residue rather than pesticide penetration to the internal area of foods. Herein, we demonstrated gold nanoparticle (AuNP)-immersed paper imprinting mass spectrometry imaging (MSI) for monitoring pesticide migration behaviors in various fruits and vegetables (i.e., apple, cucumber, pepper, plum, carrot, and strawberry). By manually stamping food tissues onto AuNP-immersed paper, this method affords the spatiotemporal visualization of insecticides and fungicides within fruits and vegetables, avoiding tedious and time-consuming sample preparation. Using the established MSI platform, we can track the migration of insecticides and fungicides into the inner region of foods. The results revealed that both the octanol-water partition coefficient of pesticides and water content of garden stuffs could influence the discrepancy in the migration speed of pesticides into food kernels. Taken together, this nanopaper imprinting MSI is poised to be a powerful tool because of its simplicity, rapidity, and easy operation, offering the potential to facilitate further applications in food analysis. Moreover, new perspectives are given to provide guidelines for the rational design of novel pesticide candidates, reducing the risk of food safety issues caused by pesticide residue.

scholarly journals Organophosphate Pesticide Residue in Fruits and Vegetables

2018 ◽  
Vol 14 (2) ◽  
pp. 172-177
Author(s):  
Joko Sudarsono ◽  
Setyo Sri Rahardjo ◽  
Kisrini Kisrini
Keyword(s):  
Pesticide Residue ◽  
Fruits And Vegetables ◽  
Limit Of Detection ◽  
Sampling Procedure ◽  
Cross Sectional ◽  
Traditional Markets ◽  
Measurement Results ◽  
Cross Sectional Design ◽  
Vegetables And Fruits ◽  
Active Substances

The use of the pesticide which does not follow the procedure may potentially cause residue of pesticide to be left on vegetables and fruits sold in supermarkets and traditional markets. We aimed to find the pattern of pesticide usage and levels of residue found in plants. This study was an analytical observation with a cross-sectional design using detailed sampling procedure. We obtained the data of the pesticide residue concentration by conducting laboratory examinations on eight samples of cabbage and eight samples of tomatoes from traditional markets and supermarkets in the city of Solo. The data were tested using simple linear regression testing. The organophosphate measurement results showed no residues were detected, because it was below the Limit of Detection (LOD). We concluded that pesticides containing active substances were not used in the vegetables we tested or the active substances were no longer contained in the vegetables after harvesting.

GC/MIP/AED Method for Pesticide Residue Determination in Fruits and Vegetables

1991 ◽  
Vol 74 (6) ◽  
pp. 991-998 ◽  
Author(s):  
Keh-Chuh Ting ◽  
Peng Kho
Keyword(s):  
Pesticide Residue ◽  
Fruits And Vegetables ◽  
Residue Analysis ◽  
Atomic Emission ◽  
Pesticide Residue Analysis ◽  
Organophosphate Pesticide ◽  
Microwave Induced Plasma ◽  
Organochlorinated Pesticides ◽  
Instrument Response ◽  
Qualitative Confirmation

Abstract This research describes the results of a gas chromatography/microwave induced plasma/atomic emission detection (GC/MIP/AED) method performed on a Hewlett-Packard 5921A system for pesticide residue analysis in fruits and vegetables. Atotal of 6 experiments were conducted: (1) sensitivity and linearity studies for elements S, P, CI, and N by analyzing dursban; (2) a study of instrument response to CI concentration in pesticide molecules; (3) organochlorinated pesticide recoveries; (4) organophosphate pesticide recoveries; (5) carbamate pesticide recoveries; and (6) investigation of metallic pesticides with pllctran and vendex as standards. The rank according to sensitivity and linearity was found to be as follows: S-181>P-178>CI-479>N-174. Instrument response to the concentration of chlorine atoms in the pesticide molecule was linear, with a correlation coefficient of 0.89. Recoveries of organochlorinated pesticides were 91.7-109.3%, with the exception of citrus, whose recovery was affected by coeluting Interferences. Organophosphate recoveries were 73.2% or higher, except for the cygon oxygen analog, which degraded in the GC system under all circumstances. Carbamate recoveries were inconsistent quantitatively; however, the information generated from elements N and S were useful for qualitative confirmation of other methods, such as LC postcolumn derivatization analysis. Overall, the GC/MIP/AED method is powerful for qualitative confirmation in pesticide residue analysis. The instrument’s capability of acquiring multi-elements (CI and P) selectively and accurately is an alternative method for organochlorinated and organophosphate pesticide residue analyses. In addition, the GC/MIP/AED system is easy to use, simple to maintain, and its chromatograms can be interpreted by any chromatography analyst without much prior training.

Nonacaricide Pesticide Residues in Honey: Analytical Methods and Levels Found

1995 ◽  
Vol 58 (11) ◽  
pp. 1271-1274 ◽  
Author(s):  
M. A. FERNÁNDEZ-MUIÑO ◽  
M. T. SANCHO ◽  
S. MUNIATEGUI ◽  
J. F. HUIDOBRO ◽  
J. SIMAL-LOZANO
Keyword(s):  
Pesticide Residue ◽  
Analytical Methods ◽  
Pesticide Residues ◽  
European Countries ◽  
Residue Levels ◽  
Set Up

A bibliographic review on honey pollution with pesticides is presented. This paper reviews the methods set up for determining pesticide residues in honey samples as well as the pesticide residue levels found in European countries.

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