Magnetically treated water for removal of surface contamination by Malathion on Chinese Kale (Brassica oleracea L.)

Malathion® is a persistent organophosphate pesticide used against biting and chewing insects on vegetables. It is a difficult-to-remove surface contaminant of vegetables and contaminates surface and ground water and soils. Malathion® is only partially water soluble, but use of detergent carriers mak...

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Veröffentlicht in:PloS one 2024-05, Vol.19 (5), p.e0298371-e0298371
Hauptverfasser: Sudsiri, Chadapust J, Jumpa, Nattawat, Ritchie, Raymond J
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Sprache:eng
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Zusammenfassung:Malathion® is a persistent organophosphate pesticide used against biting and chewing insects on vegetables. It is a difficult-to-remove surface contaminant of vegetables and contaminates surface and ground water and soils. Malathion® is only partially water soluble, but use of detergent carriers makes adhering Malathion® residues difficult to subsequently remove. Magnetically treated water (MTW) successfully removed Malathion® from Chinese Kale (Brassica oleracea L.), meeting Maximum Residue Load (MRL) standards. Samples were soaked in MTW for 30 min prior to detection with GC/MS/MS, 98.5±3.02% of Malathion® was removed after washing by MTW. Removal by simple washing was only ≈42±1.2% which was not nearly sufficient to meet MRL criteria.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0298371