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Journal article

Penetration studies of propoxur and phoxim from eggshell into whole egg after experimental exposure and application in henhouses

Authors list: Limsuwan, S; Priess, B; Tansakul, N; Nau, H; Kietzmann, M; Hamscher, G

Publication year: 2007

Pages: 6401-6405

Journal: Journal of Agricultural and Food Chemistry

Volume number: 55

Issue number: 15

ISSN: 0021-8561

DOI Link: https://doi.org/10.1021/jf070987p

Publisher: American Chemical Society

Abstract:
The penetration of propoxur and phoxim from eggshell into whole egg was investigated in vitro by spraying eggs directly and in vivo after application of the compounds in henhouses. Although mean concentrations of the compounds on eggshells were up to 23000 mu g kg(-1), mean residue concentrations in whole eggs were far below the current maximum residue levels (50 mu g kg(-1) for propoxur and 60 mu g kg(-1) for phoxim). These results provide the first evidence that propoxur and phoxim do not penetrate from eggshell into whole egg under experimental and field conditions. Subsequently, residue carry-over after egg cracking in households and during a worst-case situation in an egg-cracking plant was investigated. However, when eggs were cracked manually, a negligible contamination of whole egg values occurred. If, in an automated process, eggshells accidentally come into close contact with whole egg, very high residue levels of propoxur and phoxim may be generated time dependently. These results suggest that eggshell contact with whole egg during egg cracking must be avoided to prevent pesticide carry-over.

Authors/Editors

- Uni.-Prof. Dr. Gerd Hamscher

Citation Styles

Harvard Citation style: Limsuwan, S., Priess, B., Tansakul, N., Nau, H., Kietzmann, M. and Hamscher, G. (2007) Penetration studies of propoxur and phoxim from eggshell into whole egg after experimental exposure and application in henhouses, Journal of Agricultural and Food Chemistry, 55(15), pp. 6401-6405. https://doi.org/10.1021/jf070987p

APA Citation style: Limsuwan, S., Priess, B., Tansakul, N., Nau, H., Kietzmann, M., & Hamscher, G. (2007). Penetration studies of propoxur and phoxim from eggshell into whole egg after experimental exposure and application in henhouses. Journal of Agricultural and Food Chemistry. 55(15), 6401-6405. https://doi.org/10.1021/jf070987p