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Residual characteristics of etofenprox in the processing stages of rice cakes and cookies.
- Source :
-
PloS one [PLoS One] 2021 Aug 06; Vol. 16 (8), pp. e0255751. Date of Electronic Publication: 2021 Aug 06 (Print Publication: 2021). - Publication Year :
- 2021
-
Abstract
- The changes in residual amounts of an insecticide (etofenprox) in processed rice cakes and cookies were investigated in this study. Test samples were sprayed with etofenprox during rice cultivation, and brown rice samples were dipped in a pesticide solution to investigate the effects of washing and processing. A multiresidue method for multiclass pesticides was employed for etofenprox analysis using a high-performance liquid chromatography-ultraviolet detector setup. Etofenprox was not detected in polished rice that was processed into rice cakes and cookies. The etofenprox residue levels were 2.13 mg/kg in each processing stage of brown rice products that were dipped in 400 mg/kg etofenprox solutions. The residual amounts of etofenprox in washed/polished rice and rice flour obtained by grinding were 1.25 and 0.77 mg/kg, respectively. The residual levels were 0.38 mg/kg in rice cakes prepared by cooking rice flour in a steamer for 20 min (a decrease of 82.1% compared to that in polished rice), 0.47 mg/kg in rice cookies baked in an oven for 20 min (a decrease of 78.0%), and 0.21 mg/kg in fried rice cookies (a decrease of 90.2%). Overall, the residual levels of etofenprox decreased in a range of 40-100% during the processing of rice cakes and cookies.<br />Competing Interests: The authors have declared that no competing interests exist.
- Subjects :
- Chromatography, High Pressure Liquid
Cooking
Flour analysis
Food Analysis
Food Handling
Humans
Insecticides chemistry
Oryza drug effects
Pesticide Residues chemistry
Pesticides chemistry
Pyrethrins chemistry
Insecticides isolation & purification
Oryza chemistry
Pesticide Residues isolation & purification
Pesticides isolation & purification
Pyrethrins isolation & purification
Subjects
Details
- Language :
- English
- ISSN :
- 1932-6203
- Volume :
- 16
- Issue :
- 8
- Database :
- MEDLINE
- Journal :
- PloS one
- Publication Type :
- Academic Journal
- Accession number :
- 34358278
- Full Text :
- https://doi.org/10.1371/journal.pone.0255751