Determination of pyraclostrobin residue in wax gourd and its dietary risk assessment

Yan, Zhenmin; CAI, Guanghui; JIN, Zhong; FU, Yanyan; MA, Jingwei; Li, Meng; HAN, Wenhao; Wu, Yanbing

doi:10.1590/fst.110622

Cited by 2 publications

(2 citation statements)

References 28 publications

(30 reference statements)

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“…In order to reduce the loss, many types and large amounts of pesticides are used in the process of growth and development, which may lead to potential safety risks. Only 34 kinds of pesticides have been registered and allowed to be used in strawberry production in China, and 174 kinds of pesticides with maximum residue limit (MRL) of pesticides have been established (GB 2763-2021) [13] . According to the detection results, 10 pesticides out of 18 pesticides have not been registered on strawberries, including the most detected procymidone and carbendazim [14] .…”

Section: General Condition Of Pesticide Detection In Strawberrymentioning

confidence: 99%

Risk Evaluation of Pesticide Residue in Strawberries

2023

afshn

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In order to identify the types of pesticide residues and the maximum residue limit (MRLs) values in strawberries, the national estimated daily intake and short-term intake were used to assess the risk of pesticide residues in different populations, respectively. Meanwhile, the existing pesticide MRLs standard was used to evaluate the consumer protection level, and the risk ranking matrix was used to rank the risk of detected pesticides.The results showed that a total of 14 pesticides in all strawberries were detected with a detection rate of 4.5%~72.7%; of these, 1 exceeded their MRLs, which was found in 2.3% of the samples. However, there are pesticides that are not registered in Strawberries production but are used.In different age groups, the risk of chronic and acute dietary intake of Strawberries pesticide residues is less than 100%, and the risk is acceptable. The consumer protection level for chronic dietary risk (CPLc) of the existing pesticide MRLs for different age groups was 6.2~7254.4. It is greater than 1, so the risk protection has reached an acceptable level. The consumer protection level for acute dietary risk (CPLa) of the existing pesticide MRLs for different age groups was 0.3~1290.0. However, the risk is unacceptable. The CPLa of procymidone is less than 1 among children aged 2~4 years, women aged 18~30 years and 60~70 years. Moreover, the CPLa of pyraclostrobine ether ester is less than 1 among children aged 2~4 years. It is suggested that the MRL of procymidone and pyraclostrobine ether ester in Strawberries should be revised to 3.5 mg / kg and 1 mg / kg. According to the results of risk assessment, more attention should be focus on the pesticide residues of procymidone, acetamiprid, boscalid, pyraclostrobine, bifenazate, carbendazim, Imidacloprid, difenoconazole, triadimefon and chlorothalonil in Strawberries.

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Section: General Condition Of Pesticide Detection In Strawberrymentioning

confidence: 99%

Risk Evaluation of Pesticide Residue in Strawberries

2023

afshn

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“…It is also worth noting that, while pyraclostrobin does not accumulate considerably in food, it is not regarded highly biodegradable, raising worries about its environmental impact, notably its ability to bioaccumulate in aquatic creatures. The balance between the benefits of pyraclostrobin for crop protection and its environmental and health concerns is a subject of continuous research and regulation [5].…”

Section: Introductionmentioning

confidence: 99%

Studies on the Persistence of Pyraclostrobin 10% CS in Acidic, Neutral and Basic Waters by Validated HPLC-DAD Method

Simhachalam,

Bindu

2024

AIR

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This paper presents a method for the determination of pyraclostrobin 10% CS, a fungicide used in agriculture, in water samples with different pH values. The method is based on high-performance liquid chromatography with diode array detection (HPLC-DAD) and uses a reversed-phase column and a gradient elution. The method was validated according to the SANCO guidelines and showed good linearity, accuracy, precision, sensitivity and selectivity. The method was applied to study the persistence of pyraclostrobin 10% CS in acidic, neutral and basic water under laboratory conditions. The results showed that pyraclostrobin 10% CS was degraded rapidly in basic water with a half-life of less than ten days. The degradation products were identified by HPLC. The study involved exposing water samples to direct sunlight until the end of the experiment. The water samples had different pH levels: acidic (4.0), neutral (7.0) and basic (9.0). The water samples also contained Pyraclostrobin, a fungicide. The researchers collected aliquots of the water samples at various time intervals: 0, 1, 5, 10, 15, 20 and 30 days. The analysis continued until the Pyraclostrobin residues were below the detection limit. The DT50 can vary significantly depending on environmental conditions, such as pH levels. At pH 4, pH 7, and pH 9, the reported DT50 ranges between 6 to 8.1 days, indicating a moderate rate of degradation or dissipation in these conditions. These values suggest that the substance is relatively stable across a range of acidic to basic conditions, with only slight variations in the degradation rate.

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Determination of pyraclostrobin residue in wax gourd and its dietary risk assessment

Cited by 2 publications

References 28 publications

Risk Evaluation of Pesticide Residue in Strawberries

Risk Evaluation of Pesticide Residue in Strawberries

Studies on the Persistence of Pyraclostrobin 10% CS in Acidic, Neutral and Basic Waters by Validated HPLC-DAD Method

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