Dissipation and Risk Assessment of Multiresidual Fungicides in Grapes under Field Conditions

Yang, Mei; Luo, Fengjian; Zhang, Xinzhong; Zhou, Li; Lou, Zhengyun; Zhao, Meiqin; Chen, Zongmao

doi:10.1021/acs.jafc.9b06064

Cited by 20 publications

(17 citation statements)

References 32 publications

(45 reference statements)

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“…In this study, fungicide application was carried out after pruning; i.e., in winter when the vine was dormant and biological activity was less intense than during the growing season when treatments are carried out (leaves and grapes present). In some studies, some fungicides applied to grapes in the field during the summer period were found to have dissipated before harvest (Nadeem et al, 2020;Yang et al, 2020). In the present study, however, there was a higher concentration of the studied active substances (trifloxystrobin, boscalid, kresoxim-methyl and penconazole) in the vine-shoots to which they had been applied, since there was no translocation through the plant, and they could therefore not be distributed in order to be eliminated afterwards (as would have been the case if the treatments had been applied to the grapes).…”

Section: Discussionmentioning

confidence: 99%

Evolution of fungicide residues in pruned vine-shoots

et al. 2021

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Pruned vine-shoots used as wine additives have proven to be a useful tool for improving and differentiating wines. This is because they accumulate substances from the plant itself, which later, as a result of the toasting process, express their greatest oenological potential. However, vine being one of the crops subject to the most phytosanitary treatments, including fungicides in particular, it can be assumed that their residues will accumulate in the vine-shoots and pass into the wine. The aim of this study was to determine the content in pruned vine-shoots of four of the main fungicides applied in the vineyard in Spain: trifloxystrobin, boscalid, kresoxim-methyl and penconazole. In order to do so, a HPLC-MS/MS method was developed, which showed high reliability given its adequate validation parameters. The method was linear for the concentration range studied, LOD was 0.003 mg/kg and LOQ was 0.01 mg/kg, which comply with the control criteria.The evolution of residues in vine-shoots complying with critical agricultural practices and good agricultural practices was monitored at 1, 3 and 6 months of storage after pruning and, in the latter case, after being subjected to a toasting process. The dissipation of all the residues was demonstrated to be affected by storage duration and toasting. It was confirmed that converting vine-shoots into oenological additives for wines will not pose a risk to the consumer if good agricultural practices are applied.

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Section: Discussionmentioning

confidence: 99%

Evolution of fungicide residues in pruned vine-shoots

et al. 2021

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“…For acute dietary risk assessment, the international estimation of short-term intake (IESTI) should not be greater than the acute reference dose (ARfD) in order to protect the health of consumers. 34 The formulas to calculate IESTI and %ARfD are as follows 35 U HR v LP U HR bw…”

Section: Methodsmentioning

confidence: 99%

“…The formulas to calculate IESTI and %ARfD are as follows where U (kg) is the weight of the edible portion of a single apple, HR (mg/kg) is the highest residue in the edible portion of the apple, v is the variability factor, LP (kg) is the large portion, and bw is the average body weight of the population subgroups. v is 3 for apples, and the LP and U values come from the WHO. , …”

Section: Methodsmentioning

confidence: 99%

Dissipation, Residue, and Dietary Risk Assessment of Bifenthrin, Bifenazate, and Its Metabolite Bifenazate–Diazene in Apples Based on Deterministic and Probabilistic Methods

Zhao

Chai

Liu

et al. 2021

J. Agric. Food Chem.

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A rapid, sensitive, and effective multiresidue analytical method was established to investigate the degradation rate and final residues of bifenthrin, bifenazate, and its metabolite bifenazate–diazene in apples, and the dietary risk of consumers was evaluated. The residues of bifenthrin, bifenazate, and bifenazate–diazene in apple samples from 12 different apple-producing areas of China were determined by high-performance liquid chromatography tandem mass spectrometry (LC-MS/MS). The average recoveries of the three compounds in apples were 88.4–104.6%, and the relative standard deviations (RSDs) were 1.3–10.5%. The limit of quantification (LOQ) for each compound was 0.01 mg/kg. Although the degradation half-lives of bifenthrin, bifenazate, and bifenazate–diazene were 17.8–28.9, 4.3–7.8, and 5.0–5.8 days, under good agricultural practice (GAP) conditions, the final residues of bifenthrin, bifenazate, and the sum of bifenazate and its metabolite bifenazate–diazene in apples were <0.01–0.049, < 0.01–0.027, and <0.02–0.056 mg/kg, respectively, which were lower than the maximum residue limit (MRL) in China. By comparing the deterministic model with the probabilistic model, the results of the probabilistic model at the P95 level (12.91–48.9% for bifenthrin, 17.48–52.01% for bifenazate including its metabolite) were selected as reasonable assessment criteria for chronic dietary risk, and the acute risk was at the P99.9 level (3.00–15.59% for bifenthrin). Although the exposure risk calculated by both the deterministic model and the probabilistic model was less than 100%, the risk to children is significantly higher than that of the general population. This suggests that in future research and policy making, we should pay more attention to the risk of vulnerable groups such as children.

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“…During the grape cultivation period, it is common practice in vineyards to use pesticides, such as fungicides, insecticides and herbicides, to obtain high production. Grapes receive multiple doses of pesticides, which may partly transfer into wine [4][5][6][7][8]. In previous market surveillance studies [9][10][11][12][13], metalaxyl, procymidone, fenhexamid, cyprodinil, azoxystrobin and iprodione were detected in commercial grape wines; tebuconazol, metalaxyl and cyprodinil represent the most frequently detected pesticides.…”

Section: Introductionmentioning

confidence: 93%

Utilizing a Rapid Multi-Plug Filtration Cleanup Method for 72 Pesticide Residues in Grape Wines Followed by Detection with Gas Chromatography Tandem Mass Spectrometry

Liu

Bai

Song

et al. 2021

Foods

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A convenient and fast multi-residue method for the efficient identification and quantification of 72 pesticides belonging to different chemical classes in red and white grape wines has been developed. The analysis was based on gas chromatography tandem quadrupole mass spectrometric determination (GC–MS/MS). The optimization strategy involved the selection of the amount of multi-walled carbon nanotubes (MWCNTs) and the number of cleanup procedure cycles for multi-plug filtration cleanup (m-PFC) to achieve ideal recoveries and reduce the sample matrix compounds in the final extracts. The optimized procedure obtained consistent recoveries between 70.2 and 108.8% (70.2 and 108.8% for white wine, and 72.3 and 108.4% for red wine), with relative standard deviations (RSDs) that were generally lower than 9.2% at the three spiking levels of 0.01, 0.05 and 0.1 mg/kg. The linearity was studied in the range between 0.002 and 0.1 mg/kg using pesticide standards prepared both in pure solvent and in the presence of the matrix, showing coefficients of determination (R2) higher than 0.9495 for all the pesticides. To improve accuracy, matrix-matched calibration curves were used for calculating the quantification results. Finally, the method was used successfully for detecting pesticide residues in commercial grape wines.

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Dissipation and Risk Assessment of Multiresidual Fungicides in Grapes under Field Conditions

Cited by 20 publications

References 32 publications

Evolution of fungicide residues in pruned vine-shoots

Evolution of fungicide residues in pruned vine-shoots

Dissipation, Residue, and Dietary Risk Assessment of Bifenthrin, Bifenazate, and Its Metabolite Bifenazate–Diazene in Apples Based on Deterministic and Probabilistic Methods

Utilizing a Rapid Multi-Plug Filtration Cleanup Method for 72 Pesticide Residues in Grape Wines Followed by Detection with Gas Chromatography Tandem Mass Spectrometry

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