AI Article Synopsis
- Pesticide residues on vegetables can potentially be removed using commercial detergents, but further research is needed to determine the effectiveness of different formulations.
- The study utilizes surface enhanced Raman scattering (SERS) imaging to track thiram pesticide residues and assess the removal efficiency of various detergent mixtures, finding that a 5:5 ratio of sodium linear alkylbenzene sulphonate-alkyl glycoside (LAS-APG) at 0.2% concentration is most effective.
- HPLC validation confirms SERS results, and the LAS-APG mixture can be cleaned off easily, avoiding any risk of secondary contamination.
Article Abstract
Pesticide residues on vegetables could be removed by commercial detergents to guarantee food safety, but the removal efficiencies of different formulations of detergents need to be further investigated. In this work, surface enhanced Raman scattering (SERS) imaging method due to its good space resolution as well as high sensitivity is used to track the thiram residue, and evaluate the pesticide removing efficiencies by mixtures of several surfactants at different ratios. Sodium linear alkylbenzene sulphonate-alkyl glycoside (LAS-APG) with the ratio at 5:5 and the concentration at 0.2 % show the best removing effect. In addition, HPLC method is employed to validate the results of SERS imaging. Furthermore, LAS-APG mixture could be efficiently washed out from the leaves through simple household cleaning, meaning no secondary contamination. It is perspective that SERS imaging is an effective technique to explore the effect of fruit and vegetable detergents in removing pesticide residues.
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| http://dx.doi.org/10.1016/j.foodchem.2024.138722 | DOI Listing |
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