title: Dissipation kinetics, safety evaluation, and assessment of pre-harvest interval (PHI) and processing factor for kresoxim methyl residues in grape.
abstract: A field dissipation study was conducted to evaluate the pre-harvest interval (PHI) and processing factor (PF) for kresoxim methyl (Ergon 44.3 SC) residues in grapes and during raisin making process at recommended dose (RD) and double the recommended dose (DRD). Kresoxim methyl residues dissipated following 1st-order kinetics with a half-life of 10 and 18 days at RD and DRD, respectively. The PHIs with respect to the European Union maximum residue limit (EU-MRL) of 1 mg kg(-1) for grapes were 13 and 30 days at RD and DRD, respectively. The degradation data during grape to raisin making process were best fitted to nonlinear 1st + 1st-order kinetics with a half-life ranging between 4 and 8 days for both shade drying and with raisin dryer at different doses. The PFs were 1.19 and 1.24 with shade drying and 1.09 and 1.10 with raisin dryer, respectively, which indicates concentration of the residues during raisin making process. The dietary exposure of kresoxim methyl on each sampling day was less than the respective maximum permissible intake both at RD and DRD. The residues of kresoxim methyl in market samples of grapes and raisins were well below the EU-MRL and were also devoid of any risk of acute toxicity related to dietary exposure.
authors.affiliation: National Referral Laboratory, National Research Centre for Grapes, Pune, 412 307, India.
authors.forename: Rupali
authors.initials: R
authors.lastname: Sabale
authors.forename: T P Ahammed
authors.initials: TP
authors.lastname: Shabeer
authors.forename: Sagar C
authors.initials: SC
authors.lastname: Utture
authors.forename: Kaushik
authors.initials: K
authors.lastname: Banerjee
authors.forename: Manjusha R
authors.initials: MR
authors.lastname: Jadhav
authors.forename: Dasharath P
authors.initials: DP
authors.lastname: Oulkar
authors.forename: Pandurang G
authors.initials: PG
authors.lastname: Adsule
authors.forename: Madhukar B
authors.initials: MB
authors.lastname: Deshmukh
mesh_terms: D004784:Environmental Monitoring; D005062:European Union; D005506:Food Contamination / Q000032:analysis / Q000706:statistics & numerical data; D005659:Fungicides, Industrial / Q000032:analysis* / Q000737:chemistry; D006207:Half-Life; D007700:Kinetics; D008689:Methacrylates / Q000032:analysis / Q000737:chemistry; D010573:Pesticide Residues / Q000032:analysis* / Q000737:chemistry; D010648:Phenylacetates / Q000032:analysis* / Q000737:chemistry; D018570:Risk Assessment; D000073739:Strobilurins; D027843:Vitis / Q000737:chemistry*
chemical_list: D005659:Fungicides, Industrial; D008689:Methacrylates; D010573:Pesticide Residues; D010648:Phenylacetates; D000073739:Strobilurins; C469328:kresoxim-methyl