Full
Outline
To evaluate the risk of pesticide residues in Fragaria ananassa, and analyze the correlation between pesticide residues and the quality of Fragaria ananassa.
A total of 156 Fragaria ananassa samples were analyzed for pesticide residues. Based on the acquired pesticide residue data in Fragaria ananassa samples, the acute dietary risk of the target fruit was assessed by applying relevant maximum residue limits and dietary exposure assessment methodologies. Meanwhile, key quality parameters of the Fragaria ananassa-including vitamin C (VC), soluble sugar, titratable acid, pectin, solids and hardness were determined. The correlation between detected pesticide residues and these quality parameters was then analyzed.
A total of 19 pesticide residues were detected among the 104 kinds of target pesticides across 156 sample batches.Pesticide-free samples accounted for 24.36% of the total, while samples containing multiple pesticide residues (≥3 types) represented 15.39%. Among the detected compounds, the plant growth regulator chlormequat showed the highest residual level, with a maximum concentration of 0.408 mg/kg and a detection rate of 46.15%. Among fungicides, boscalid had the highest detection rate (21.79%). Spirodiclofen was the insecticide with the highest detection rate among insecticides (12.18%). Notably, the pesticides with insecticidal effects detected had not been registered on Fragaria ananassa. The acute dietary intake risk was below 1. VC content was positively correlated with chlormequat. Soluble sugar showed a positive correlation with procymidone, positive correlation with carbendazim, and a negative correlation with prochloraz. Titratable acid was negatively correlated with chlorantraniliprole, dinotefuran and trifloxystrobin. Pectin content was positively correlated with chlormequat, while total solids were negatively correlated with prochloraz. Hardness exhibited no significant correlation with any pesticide residues. The detection rate of pesticide residues in Fragaria ananassa was high, with a wide variety of residues identified. Both cypermethrin and dimethomorph were found to exceed the standard limits (0.64%),however, no short term dietary intake risk was observed. Appropriate application of the plant growth regulator chlormequat had a positive effect on the VC content of Fragaria ananassa. But chlormequat was not registered for Fragaria ananassa, and further screening of alternative agents was required.
This study assesses the dietary risk of pesticide residues in Fragaria ananassa and investigates their association with key nutritional quality indicators. The integrated safety-quality assessment framework established can be extended to other high-value produce, providing practical value for guiding evidence-based pesticide application and enhancing the overall quality and safety of agricultural products.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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