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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.

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Abstract

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.

Item Type:Article
Keyword:14C-Malathion, stored milled rice, surface, extractable and bound residues
Faculty or Institute:Faculty of Environmental Studies
ID Code:2649
Deposited By: Nur Izyan Mohd Zaki
Deposited On:16 Nov 2009 15:58
Last Modified:27 May 2013 15:02

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