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Persistence of 14 C-Malathion Residues in Stored Milled Rice


Arshad, Juzu Hayati and Mohd Salehuddin, Aini (1988) Persistence of 14 C-Malathion Residues in Stored Milled Rice. Pertanika, 11 (1). pp. 73-78.


The persistence of 14C-malathion residues in milled rice stored for 41 weeks was studied under conditions simulating local practice. Total, surface, extractable and bound residues in the rice grains were determined following a single spraying with the insecticide. After 41 weeks (- 9 months) storage, 10% of the total quantity of the applied 14 C-malathion remained on the surface of the jute sack and 5% was present on the surface and i. side the rice grains. Formation of bound residues was apparently negligible. Data showed also that 50-60% of the total 14 C-malathion residues in the rice were present as surface residues. Washing the rice thoroughly before cooking removed the surface residues. During cooking, 57% of the extractable residues were lost.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Environmental Studies
Keywords: 14C-Malathion, stored milled rice, surface, extractable and bound residues
Depositing User: Nur Izyan Mohd Zaki
Date Deposited: 16 Nov 2009 07:58
Last Modified: 27 May 2013 07:02
URI: http://psasir.upm.edu.my/id/eprint/2649
Statistic Details: View Download Statistic

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