Residual behavior and risk assessment of prochloraz in bayberries and bayberry wine for the Chinese population

Zhao, Huiyu; Yang, Guiling; Liu, Yinlan; Ye, Hai-ping; Qi, Xin; Wang, Qiang

doi:10.1007/s10661-019-7804-6

Cited by 13 publications

(7 citation statements)

References 6 publications

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“…In contrast with our result, prochloraz was reported to show high stability in skin and mesocarp of ‘Dangshan Su’ pears [ 23 ], which suggests that the pear variety plays a key role in the stability of fungicides. Zhao et al indicated that prochloraz showed high stability in bayberries [ 53 ].…”

Section: Resultsmentioning

confidence: 99%

Peel Diffusion and Antifungal Efficacy of Different Fungicides in Pear Fruit: Structure-Diffusion-Activity Relationships

Zhu

Chen

Wang

et al. 2022

JoF

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Fungal pathogens can invade not only the fruit peel but also the outer part of the fruit mesocarp, limiting the efficacy of fungicides. In this study, the relationships between fungicide structure, diffusion capacity and in vivo efficacy were evaluated for the first time. The diffusion capacity from pear peel to mesocarp of 11 antifungal compounds, including p-aminobenzoic acid, carbendazim, difenoconazole, dipicolinic acid, flusilazole, gentamicin, kojic acid, prochloraz, quinolinic acid, thiophanate methyl and thiram was screened. The obtained results indicated that size and especially polarity were negatively correlated with the diffusion capacity. Although some antifungal compounds, such as prochloraz and carbendazim, were completely degraded after a few days in peel and mesocarp, other compounds, such as p-aminobenzoic acid and kojic acid, showed high stability. When applying the antifungal compounds at the EC50 concentrations, it was observed that the compounds with high diffusion capacity showed higher in vivo antifungal activity against Alternaria alternata than compounds with low diffusion capacity. In contrast, there was no relationship between stability and in vivo efficacy. Collectively, the obtained results indicated that the diffusion capacity plays an important role in the efficacy of fungicides for the control of pear fruit diseases.

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Section: Resultsmentioning

confidence: 99%

Peel Diffusion and Antifungal Efficacy of Different Fungicides in Pear Fruit: Structure-Diffusion-Activity Relationships

Zhu

Chen

Wang

et al. 2022

JoF

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“…In that study, the cHQ for Prochloraz of adults and children were 0.053% and 0.213%, respectively. However, in the research of the risk assessment of prochloraz in bayberries (Zhao et al 2019), cHQ was calculated for adults to be 0.001 and aHQ of 0.82, and children's aHQ was 0.57, which indicated acceptable chronic risks. However, both adults and children face intolerable acute hazards.…”

Section: Health Risk Assessmentmentioning

confidence: 99%

“…On the other side, the possible processing before eating fruit is ignored. Zhao et al (2019) discovered that washing fruits with tap water for one minute effectively removes pesticide residues on the surface. Grapes, for example, are frequently washed, soaked, and peeled before eating, which can contribute to an overestimation of pesticide residues intake (Chen et al 2011).…”

Section: Health Risk Assessmentmentioning

confidence: 99%

Occurrence of Nine Pesticide Residues in Table Grapes and Exposure Assessment in Shandong Province, China

Nie

Jian

et al. 2023

Preprint

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Shandong is a significant region for grape production in China, but the presence of pesticide residues in table grapes represents a major concern for consumer health. This study aimed to investigate pesticide residues and exposure in table grapes from Shandong Province. Of the 86 survey samples, pesticides were detected in 80 (93.0%), all above the limit of quantification (LOQ) of residues. The most commonly detected pesticide was Dimethomorph, which was found in 65 (75.6%) of the samples in a concentration range from 0.007 to 4.27 mg/kg. The results were evaluated according to the maximum residue levels (MRLs) set by Chinese regulation. Among the contaminated samples, 6.98% exceeded the MRLs and more than one pesticide contamination was found in 65 (75.6%) of the samples. The short-term and long-term risks associated with consuming these grapes were both below 10%, indicating no significant threat to human health. Nevertheless, strict regulation of pesticide residues in grapes is necessary.

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“…Prochloraz (Mirage ® 45 EC, 450 g L −1 ; Adama Makhteshim Ltd., Beer Sheva, Israel) and metrafenone (Vivando ® SC, 500 g L −1 ; BASF SE, Ludwigshafen am Rhein, Germany) effectively control many ascomycetes and deuteromycetes [41], such as Trichoderma, with minimal effects on basidiomycetes, such as Agaricus or Pleurotus.…”

Section: Effect Of Fungicides On Fungal Growthmentioning

confidence: 99%

Trichoderma Species Problematic to the Commercial Production of Pleurotus in Italy: Characterization, Identification, and Methods of Control

Lombardi,

Pironti,

Manganiello

et al. 2023

Microbiology Research

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Nine isolates of Trichoderma were obtained from the diverse phases of compost preparation and the production of different commercial varieties of oyster mushrooms Pleurotus spp. with the apparent presence of green mould disease. The isolates were morphologically and genetically characterized. Molecular fingerprinting indicated that the isolates belonged to the species T. pleuroticola and T. harzianum. In order to identify control measures, changes in temperature, pH, and application of fungicides were tested on the present isolates, using known Trichoderma biocontrol strains as a reference. Fungicide effects on the growth of Pleurotus isolates were also assessed. The optimal growth temperatures were 25 °C for Trichoderma isolates and 28 °C for Pleurotus isolates, and Trichoderma always grew faster than Pleurotus. In particular, a reduction of about 30% was recorded for some of the Trichoderma isolates when comparing the colony growth at 25 and 28 °C. Trichoderma isolates developed well within a wide pH range, with the best growth occurring between pH 5 and 7, whereas Pleurotus preferred more alkaline conditions (pH 8 to 9). Prochloraz and metrafenone were found to inhibit Trichoderma growth with different dose responses that did not affect the growth of Pleurotus spp. In particular, metrafenone was the most effective active ingredient that inhibited the majority of the Trichoderma isolates (1–25% growth reduction).

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Residual behavior and risk assessment of prochloraz in bayberries and bayberry wine for the Chinese population

Cited by 13 publications

References 6 publications

Peel Diffusion and Antifungal Efficacy of Different Fungicides in Pear Fruit: Structure-Diffusion-Activity Relationships

Peel Diffusion and Antifungal Efficacy of Different Fungicides in Pear Fruit: Structure-Diffusion-Activity Relationships

Occurrence of Nine Pesticide Residues in Table Grapes and Exposure Assessment in Shandong Province, China

Trichoderma Species Problematic to the Commercial Production of Pleurotus in Italy: Characterization, Identification, and Methods of Control

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