Field evaluation of the potential effects of polymer and silica-based nanopesticides on strawberries and agricultural soils

Galhardi, Juliana Aparecida; Wang, Peiying; Bueno, Vinicius; Ghoshal, Subhasis; Gravel, Valérie; Wilkinson, Kevin J.; Bayen, Stéphane

doi:10.1039/d2en00329e

Cited by 6 publications

(16 citation statements)

References 47 publications

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“…All processed samples were stored at −80 °C until analysis. AZOX in incurred samples was quantified in our previous study and ranged from 0.2 to 6.21 μg/kg of fresh strawberry …”

Section: Methodsmentioning

confidence: 99%

“…Plants were treated twice (total 7.6 mg active ingredient/pot, 15 and 30 days after transplanting) using a drench application for each of the pesticide formulations. Further details on the field experiment, plant phenology, and pesticide accumulation have been described in Galhardi et al 13 Fruits were collected and homogenized in a stainless-steel blender. All processed samples were stored at −80 °C until analysis.…”

Section: Methodsmentioning

confidence: 99%

“…AZOX in incurred samples was quantified in our previous study and ranged from 0.2 to 6.21 μg/kg of fresh strawberry. 13 2.3. Spiked Water and Strawberries.…”

Section: Methodsmentioning

confidence: 99%

“…To comply with food safety regulations in Canada, AZOX residues in strawberries should not exceed a maximum residue limit (MRL) of 10 mg/kg . Metabolism and degradation of AZOX under field conditions have been reported applied for both conventional and nanoencapsulated formulations. , In particular, a controlled strawberry field experiment was performed over two growing seasons to compare AZOX metabolites applied as both nanoencapsulated and conventional formulations . In addition to being consumed as fresh fruits (including in “pick your own” operations), strawberries are commonly processed as an ingredient in the preparation of value-added commodities such as jams.…”

Section: Introductionmentioning

confidence: 99%

“…12, 13 In particular, a controlled strawberry field experiment was performed over two growing seasons to compare AZOX metabolites applied as both nanoencapsulated and conventional formulations. 13 In addition to being consumed as fresh fruits (including in "pick your own" operations), strawberries are commonly processed as an ingredient in the preparation of value-added commodities such as jams. Such processing activities contribute to minimize postharvest losses and make strawberry culture more profitable.…”

Section: Introductionmentioning

confidence: 99%

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Thermal Degradation of Conventional and Nanoencapsulated Azoxystrobin due to Processing in Water, Spiked Strawberry, and Incurred Strawberry Models

Wang

Gravel

Bueno

et al. 2022

ACS Agric. Sci. Technol.

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Nanoencapsulated formulations of pesticides have been recently developed, and some products are now marketed for specific applications in agriculture. Pesticide residues present in raw agricultural products can degrade or react during food processing steps. To date, the fate of nanopesticides during food processing has not been well described. In this study, the thermal degradation of azoxystrobin (AZOX) in conventional and nanoencapsulated (Allosperse and nSiO 2 ) formulations was first assessed in water, spiked strawberry, and incurred strawberry models. The thermal degradation followed first-order kinetics when heated at 100 °C in the water model. The thermal degradation of AZOX in nanoformulations in strawberry models (18% AZOX decrease) was comparable to or lower than in the conventional formulation (21%), possibly due to the nanocarriers protecting the active ingredient from hydrolytic degradation. Out of 32 thermal degradation products (TDPs), only two were detected in both the spiked water and strawberry models, indicating differences in the thermal degradation reactions for AZOX in these two models. Identical TDPs were detected for both conventional and nanoformulations for each specific model, except for the absence of one (TDP22) in the nSiO 2 formulations. The nanoencapsulation of AZOX did not result in new TDPs in any of the matrices. Only six of the TDPs detected in water, four in spiked strawberries, and two in incurred strawberries have been previously reported in environmental studies on the metabolism of AZOX. Based on the observed TDPs, AZOX thermal degradation pathways include ether cleavage, hydrolysis, demethylation, and decarboxylation. Overall, although nanocarriers have no impact on the degradation product types, nanocarriers had a slight but significant impact on the degradation rate of pesticide active ingredients.

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“…All processed samples were stored at −80 °C until analysis. AZOX in incurred samples was quantified in our previous study and ranged from 0.2 to 6.21 μg/kg of fresh strawberry …”

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…AZOX in incurred samples was quantified in our previous study and ranged from 0.2 to 6.21 μg/kg of fresh strawberry. 13 2.3. Spiked Water and Strawberries.…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Thermal Degradation of Conventional and Nanoencapsulated Azoxystrobin due to Processing in Water, Spiked Strawberry, and Incurred Strawberry Models

Wang

Gravel

Bueno

et al. 2022

ACS Agric. Sci. Technol.

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Effect of nanopesticides (azoxystrobin and bifenthrin) on the phenolic content and metabolic profiles of strawberries (Fragaria × ananassa)

et al. 2023

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BACKGROUNDNanoencapsulation has opened promising fields of innovation for pesticides. Conventional pesticides can cause side effects on plant metabolism. To date, the effect of nanoencapsulated pesticides on plant phenolic contents has not been reported.RESULTSIn this study, a comparative evaluation of the phenolic contents and metabolic profiles of strawberries was performed for plants grown under controlled field conditions and treated with two separate active ingredients, azoxystrobin and bifenthrin, loaded into two different types of nanocarriers (Allosperse® polymeric nanoparticles and SiO2 nanoparticles). There were small but significant decreases of the total phenolic content (9%) and pelargonidin 3‐glucoside content (6%) in strawberries treated with the nanopesticides. An increase of 31% to 125% was observed in the levels of gallic acid, quercetin, and kaempferol in the strawberries treated with the nanoencapsulated pesticides compared with the conventional treatments. The effects of the nanocarriers on the metabolite and phenolic profiles was identified by principal component analysis.CONCLUSIONOverall, even though the effects of nanopesticides on the phenological parameters of strawberry plants were not obvious, there were significant changes to the plants at a molecular level. In particular, nanocarriers had some subtle effects on plant health and fruit quality through variations in total and individual phenolics in the fruits. Further research will be needed to assess the impact of diverse nanopesticides on other groups of plant metabolites. © 2023 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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Impacts of nano-acetamiprid pesticide on faba bean root metabolic response and soil health

Ding,

Tao,

et al. 2024

Science of The Total Environment

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Field evaluation of the potential effects of polymer and silica-based nanopesticides on strawberries and agricultural soils

Abstract: Polymeric and SiO2 nanoparticles can be used as nanocarriers to improve the efficacy of pesticide delivery in agriculture. However, the environmental fate and potential risks of this type of nanopesticides...

Cited by 6 publications

References 47 publications

Thermal Degradation of Conventional and Nanoencapsulated Azoxystrobin due to Processing in Water, Spiked Strawberry, and Incurred Strawberry Models

Thermal Degradation of Conventional and Nanoencapsulated Azoxystrobin due to Processing in Water, Spiked Strawberry, and Incurred Strawberry Models

Effect of nanopesticides (azoxystrobin and bifenthrin) on the phenolic content and metabolic profiles of strawberries (Fragaria × ananassa)

Impacts of nano-acetamiprid pesticide on faba bean root metabolic response and soil health

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