Residue distribution and risk assessment of bifenazate and its metabolite in garlic plant.
Food Chem
; 379: 132013, 2022 Jun 15.
Article
in En
| MEDLINE
| ID: mdl-35063852
The dissipation, conversion and risk assessment of bifenazate and bifenazate-diazene in garlic plant were studied by a modified QuEChERS method coupled with UHPLC-MS/MS for the first time. Bifenazate dissipated rapidly in garlic chive and serpent garlic with the half-lives of 3.0-3.9 days and 6.1-6.9 days, respectively. Bifenazate residue on garlic (<0.01 mg/kg) was significantly lower than the other two matrices in the whole growing period, which meant residues in the above-ground part were not transferred to the garlic. Furthermore, garlic chive had higher residues than serpent garlic due to the differences in morphological characteristics. Bifenazate-diazene was easier to convert to bifenazate, with the conversion rates of 93%, 16% and 32% in garlic, serpent garlic and garlic chive extracts, respectively. Additionally, the dietary intake risk for bifenazate was acceptable with RQchronic < 100% according to the international and national assessments.
Key words
Bifenazate; Bifenazate (PubChem CID:176879); Conversion; Metabolite; Residue distribution; Risk assessment; acetonitrile (PubChem CID: 6342); ammonium acetate (PubChem CID: 517165); ascorbic acid (PubChem CID: 54670067); bifenazate-diazene (PubChem CID: 69250380); formic acid (PubChem CID: 284); methanol (PubChem CID: 887)
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Carbamates
/
Pesticide Residues
/
Garlic
/
Hydrazines
Type of study:
Etiology_studies
/
Risk_factors_studies
Language:
En
Journal:
Food Chem
Year:
2022
Document type:
Article
Country of publication:
United kingdom