Decontamination of aflatoxin-contaminated maize by dehulling

Siwela, Andrew H. (2005) Decontamination of aflatoxin-contaminated maize by dehulling.

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Official URL: http://ir.nust.ac.zw/xmlui/handle/123456789/284

Abstract

Dehulling of maize grains as an aflatoxin decontamination method was investigated. Sixty kilograms of maize (whose average moisture content was 110 g kg?1) were thoroughly mixed and divided into two samples. The kernel moisture content of one sample was adjusted to 200 g kg?1 while the other (control) was left at 110 g kg?1. The two samples were kept at ambient temperature (25?30 ?C) for 21 days. Twenty sub-samples, ten from each, were further divided into two so that one lot was dehulled while the other was not dehulled. These sub-samples were then milled to pass through a 1mm screen and the meal was evaluated for aflatoxin contamination. It was found that there was a 92% decrease in aflatoxin levels in dehulled maize meal compared with undehulled maize meal. We therefore suggest that dehulling the grain can be used to reduce aflatoxin levels in maize.

Item Type: Article
Uncontrolled Keywords: Aflatoxin,Decontamination,Dehulling,Maize
Divisions: Universities > State Universities > National University of Science and Technology
Depositing User: Mr. Edmore Sibanda
Date Deposited: 01 Dec 2015 01:01
Last Modified: 01 Dec 2015 01:01
URI: http://researchdatabase.ac.zw/id/eprint/1231

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