Determination of fungicides in bell pepper using solid-liquid extraction with low temperature partitioning

Heleno, Fernanda Fernandes; Rodrigues, Alessandra Aparecida Zinato; Queiroz, Maria Eliana Lopes Ribeiro de; Neves, Antônio Augusto; Oliveira, André Fernando de; Libardi, Vitor M.

doi:10.1016/j.microc.2019.04.045

Cited by 18 publications

(6 citation statements)

References 15 publications

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“…On the other hand, if the analytes are not volatile, a solid-liquid extraction (solid-liquid extraction (SLE), ultrasoundassisted extraction (UAE) or supercritical-fluid extraction (SFE)) should be performed in advance to transfer the selected analytes from the fruits and vegetables matrices to a suitable organic phase. A second extraction step, using, for instance, liquid-liquid extraction (LLE), can be then employed before eluting the target analytes in a solvent compatible with the succeeding chromatographic separation [74][75][76][77]. Quick, Easy, Cheap, Effective, Rugged, and Safe (QuEChERS) is particularly tailored for these applications, just involving an initial salting-out extraction step followed by a dispersive solid-phase extraction (dSPE) clean-up [78].…”

Section: Extraction Approaches Used To Assess Food Safetymentioning

confidence: 99%

Exploring the Potential of Microextraction in the Survey of Food Fruits and Vegetable Safety

et al. 2023

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The increasing demand for food to feed an exponentially growing population, the fast evolution of climate changes, how global warming affects soil productivity, and the erosion of arable lands, create enormous pressure on the food chain. This problem is particularly evident for fresh fruits and vegetables that have a short shelf life. For this reason, food safety precautions are not always a priority and they are often overused to increase the productivity and shelf life of these food commodities, causing concerns among consumers and public authorities. In this context, this review discusses the potential of microextraction in comparison to conventional extraction approaches as a strategy to improve the survey of food safety requirements. Accordingly, selected examples reported in the literature in the last five years will focus on the detection and quantification of pesticides, antibiotics, hormones, and preservatives in fresh fruits and vegetables using different extraction approaches. Overall, the use of microextraction techniques to survey the presence of contaminants in the food chain is very advantageous, involving simpler and faster protocols, reduced amounts of solvents and samples, and consequently, reduced waste produced during analysis while conserving a high potential for automation. Additionally, this higher greener profile of the microextraction techniques will boost a progressive substitution of conventional extraction approaches by microextraction processes in most analytical applications, including the survey of food chain safety.

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Section: Extraction Approaches Used To Assess Food Safetymentioning

confidence: 99%

Exploring the Potential of Microextraction in the Survey of Food Fruits and Vegetable Safety

et al. 2023

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“…Em contrapartida, outro método que foi desenvolvido e que tem sido utilizado com sucesso para determinação de agrotóxicos em alimentos e demais amostras por cromatografia é a extração sólido-líquido com partição em baixa temperatura (ESL/PBT) [20][21]. O método permite o desempenho simultâneo pela extração de agrotóxicos e limpeza dos extratos e inúmeros estudos também já foram realizados, sendo aplicado em amostras frutíferas e de origem vegetal, como na batata [22], cenoura [23], abobrinha [24], alface [25], alho [26], milho [27], tomates [28], cajá-manga [29], pimentão [30] e aplicado em amostras de solos [31][32][33]. O método é simples, eficiente, oferece praticidade, baixo consumo de solvente orgânico e amostra, número reduzido de etapas e confiabilidade com porcentagens de recuperação elevadas e boa repetitividade [34].…”

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Avaliação da ESL-PBT na determinação de carbaril em amostras de abacaxi pérola (ananás comosus) comercializadas no município de Itumbiara

Goulart

Nunes²,

Santos³

et al. 2019

Tecno-log.

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O uso de agrotóxicos no Brasil tem impulsionado várias pesquisas em análises de alimentos, visto que, o país está em posição de destaque no ranking dos maiores consumidores destes compostos. A Agência Nacional de Vigilância Sanitária (ANVISA), por meio do Programa de Análises de Resíduos de Agrotóxicos em Alimentos (PARA) realiza o monitoramento da contaminação dos alimentos; observando, desta forma, se os produtores estão fazendo uso correto destes compostos. Diante disto, o objetivo desta pesquisa foi otimizar o método de ESL-PBT para determinação de carbaril em amostras de abacaxi Pérola. O abacaxi foi escolhido devido à grande comercialização na região de Itumbiara-GO e por ter sido uma das frutas que apresentou resíduos de agrotóxicos acima do permitido no relatório PARA, nos anos de 2013 a 2015, divulgado em 2016. Para otimização do método ESL-PBT foi empregado um planejamento fatorial completo 2³, para avaliação do comportamento simultâneo de três fatores (relação do volume de água e solvente extrator, adição de NaCl e solução extratora) em triplicata. Para separação, identificação e quantificação de carbaril foi utilizada a cromatografia líquida de alta eficiência com detector ultravioleta/visível. O método ESL-PBT aplicado na determinação de carbaril em amostras de abacaxi mostrou-se simples e eficaz, empregando pequenas quantidades de solventes e amostras, com boa porcentagem média de recuperação. A porcentagem de recuperação do carbaril em abacaxi foi de 103,10% e os experimentos com amostras reais de abacaxi, comercializados no município de Itumbiara-GO, não apresentaram a presença de carbaril ou esses estavam abaixo do limite de detecção do método.

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“…[6][7][8][9][10][11][12] Although these methodologies have proven to be very efficient and sensitive, the development of new extraction methods which can be simpler, easier to perform, sensitive, efficient and cheaper is recommended. In this sense, previous works [13][14][15][16] have shown that solid-liquid extraction with low temperature purification (SLE-LTP) has gathered these characteristics when applied to other environmental contaminants. Therefore, a miniaturized variation of this methodology was recently optimized and validated to monitor pesticides in biological matrices.…”

Section: Introductionmentioning

confidence: 98%

Optimization and Validation of the Miniaturized Solid-Liquid Extraction with Low Temperature Purification (SLE-LTP) Method for Determining Fluopyram in Sandy, Clayey and Medium-Textured Soil

Silva¹,

Terra²,

Sicupira³

et al. 2023

J. Braz. Chem. Soc.

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Fluopyram is a fungicide which can also be used as a nematicide in agricultural areas. The Brazilian Ministry of Agriculture authorized the commercialization and use of this molecule in Brazilian agriculture in 2019, but studies involving the development of an extraction and quantification method of this compound in environmental matrices such as soil are still scarce. Therefore, the present study aimed to optimize and validate the miniaturized version of the solid-liquid extraction with low temperature purification (SLE-LTP) method for determining this compound in sandy, clayey and medium-textured soil samples. All analyzes in this study were performed by gas chromatography coupled to mass spectrometry (GC-MS). The results revealed that the analyte recovery percentages in the three soil types ranged from 86 to 114% with a relative standard deviation of less than 15%. In addition to employing smaller amounts of reagents and sample, the miniaturized SLE-LTP method was selective, precise, exact, and linear in the range from 3 to 210 μg kg-1, and reached a limit of quantification lower than 3.00 μg kg-1 for the three soil types. The extraction method was applied to 30 real samples collected in coffee growing regions, but no residue of this compound was detected in these samples.

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Determination of fungicides in bell pepper using solid-liquid extraction with low temperature partitioning

Cited by 18 publications

References 15 publications

Exploring the Potential of Microextraction in the Survey of Food Fruits and Vegetable Safety

Exploring the Potential of Microextraction in the Survey of Food Fruits and Vegetable Safety

Avaliação da ESL-PBT na determinação de carbaril em amostras de abacaxi pérola (ananás comosus) comercializadas no município de Itumbiara

Optimization and Validation of the Miniaturized Solid-Liquid Extraction with Low Temperature Purification (SLE-LTP) Method for Determining Fluopyram in Sandy, Clayey and Medium-Textured Soil

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