Degradation dynamics and dissipation kinetics of an imidazole fungicide (Prochloraz) in aqueous medium of varying pH

Aktar, Md. Wasim; Sengupta, Dwaipayan; Purkait, Swarnali; Ganguly, Moumita; Paramasivam, M.

doi:10.2478/v10102-010-0047-6

Cited by 6 publications

(5 citation statements)

References 11 publications

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“…The reported half-lives of the compounds are 22.6 days for prochloraz [19], between 6 days and 35 weeks for tributyltin (search term “tributyltin” at https://pubchem.ncbi.nlm.nih.gov), at least 8 weeks for imazalil [20], 21–52 days for butralin (search term “butralin” at https://pubchem.ncbi.nlm.nih.gov), and years rather than days for PFOA [21]. However, the experimental setups for these measurements may differ from the experimental conditions used here, and, thus, there might be factors, such as chemical binding to plastic surfaces, which could alter the actual chemical exposure concentrations used here.…”

Section: Methodsmentioning

confidence: 99%

Identification of environmental chemicals that induce yolk malabsorption in zebrafish using automated image segmentation

Kalasekar

Zacharia

Kessler

et al. 2015

Reproductive Toxicology

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Environmental factors affecting nutrient availability during development can have long-term effects including predisposition to diseases later in life. In order to identify chemicals in the environment capable of altering nutrient mobilization, we analyzed yolk malabsorption in the zebrafish embryo, which relies on maternally-derived yolk for nutrition during the first week of life. Embryos of the transgenic zebrafish line HGn50D, which fluoresce in the yolk syncytial layer, the heart, and the eyes of the zebrafish, were exposed from two to five days post fertilization to nine chemicals, including pesticides (prochloraz, imazalil, and butralin), pharmaceuticals (clofibrate and gemfibrozil), flame retardants (tetrabromobisphenol A, and tetrachlorobisphenol A), a surfactant (perfluorooctanoic acid) and a biocide (tributyltin). We developed a software package named ZebRA to automatically and accurately segment and quantify the area of the fluorescing yolk in images captured at the end of the treatment period. Based on this quantification, we found that prochloraz decreased yolk absorption, while butralin, tetrabromobisphenol A, tetrachlorobisphenol A and tributyltin, at the higher concentrations tested, increased yolk absorption. Given the number and variety of industrial chemicals in commerce today, development of automated image processing allowing for high-speed analysis and accurate quantification of biological effects is an important step for enabling high throughput screening to identify chemicals adversely impacting nutrient absorption.

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Section: Methodsmentioning

confidence: 99%

Identification of environmental chemicals that induce yolk malabsorption in zebrafish using automated image segmentation

Kalasekar

Zacharia

Kessler

et al. 2015

Reproductive Toxicology

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“…ha À1 in potato and 2.0 and 4.0 kg a.i. ha À1 in tomato, twice with a 15-day interval, caused more than 94% of the initial residues to dissipate within 15 days after the last application (Aktar et al, 2009). The initial deposits of propineb residue ranged from 21.69 to 58.9 mg kg À1 in rice plants and more than 80% of the propineb residue was dissipated within 7 days, irrespective of the dose and crop stage (Birendrajit et al, 2012).…”

Section: Propineb As Carbon Disulfide (Cs 2 ) In Tomato Fruits and Soilmentioning

confidence: 99%

“…The production and quality of crops have been reduced due to a number of diseases such as tomato buckeye rot ( Phytophthora nicotianae var. parasitica ), tomato scab ( Venturia inaequalis ), and early and late blight (Aktar et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Behavior of trifloxystrobin and propineb as combination product in tomato (Solanum lycopersicum) and their risk assessment for human health

Litoriya

Patel

Thakor

et al. 2023

Biomedical Chromatography

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Fungicides have their own unique characteristics and modes of action; a combination formulation [combination product (combi product)] of trifloxystrobin and propineb was applied to tomatoes for their dissipation kinetics and to ensure consumer safety. The combi product was applied at a 10‐day interval with standard (61.25 + 1072.75 g a.i. ha−1) and double (122.5 + 2145.50 g a.i. ha−1) doses. The efficient analytical method was established using the quick, easy, cheap, effective, rugged, and safe (QuEChERS) approach followed by LC–MS. The maximum residue levels of 0.15 and 0.35 mg kg−1 of trifloxystrobin were detected in tomato fruits immediately after application at standard and double doses, respectively. The corresponding levels of propineb as carbon disulfide were 0.47 and 0.90 mg kg−1, respectively. Considering trifloxystrobin (0.7 mg kg−1) codex maximum residue limit and propineb as dithiocarbamate (3.0 mg kg−1) European Commission maximum residue limit in tomato, a pre‐harvest interval of 1 day can be proposed. The anticipated residue contributions of both fungicides were far less than the acceptable daily intake. The targeted hazard quotient and hazard index were also less than 1 for both fungicides. Furthermore, the theoretical maximum residue contribution was less than its maximum permissible intake, which indicates that the consumption of tomatoes containing the measured value of each fungicide residue could not pose any health risks.

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“…Several analytical methods for analysis of prochloraz residues have been reported for use in herbal medicines, 10 mushrooms, 11 fruits and wheats 12 as well as soil 13 and water. 14 These methods have been carried out using various sample preparation methods such as liquid-liquid extraction (LLE), solid-phase extraction (SPE), matrix solid-phase dispersion (MSPD), supercritical uid extraction (SFE) and, microwave-assisted extraction (MAE). 15 However, the major drawbacks of these methods are that they require intensive time, labour, and large volumes of hazardous solvents.…”

Section: Introductionmentioning

confidence: 99%

Rapid and sensitive determination of the prochloraz residues in the cultivated mushroom, Agaricus bisporus (Lange) Imbach

et al. 2014

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The QuEChERS (quick, easy, cheap, efficient, rugged, and safe) sample preparation method and gas chromatography-electron capture detector (GC-ECD) were adopted for rapid extraction and determination of prochloraz residues in cultivated mushrooms. The results were further confirmed by using a gas chromatography-mass spectrometry (GC-MS) system. The method showed that there was a good linear relationship with a correlation coefficient of r 2 ¼ 0.999 in the concentration ranges from 52.9 to 1000 mg L À1 . The limit of detection (LOD) of the GC-ECD method was 15.9 mg kg À1 and the limit of quantification (LOQ) was 52.9 mg kg À1 . The data satisfactorily demonstrated the good repeatability of the method with relative standard deviations (RSDs) lower than 20%. The recovery values for spiked mushroom samples were 100.6 AE 1.6% and 105.6 AE 3.9% for 250 and 1000 mg kg À1 , respectively. The samples from seven different mushroom growing facilities were analyzed. The residue levels of prochloraz ranged from

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Degradation dynamics and dissipation kinetics of an imidazole fungicide (Prochloraz) in aqueous medium of varying pH

Cited by 6 publications

References 11 publications

Identification of environmental chemicals that induce yolk malabsorption in zebrafish using automated image segmentation

Identification of environmental chemicals that induce yolk malabsorption in zebrafish using automated image segmentation

Behavior of trifloxystrobin and propineb as combination product in tomato (Solanum lycopersicum) and their risk assessment for human health

Rapid and sensitive determination of the prochloraz residues in the cultivated mushroom, Agaricus bisporus (Lange) Imbach

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