Aflatoxin Carryover during Large Scale Peanut Butter Production.

Siwela, Andrew H. (2011) Aflatoxin Carryover during Large Scale Peanut Butter Production.

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Official URL: http://ir.nust.ac.zw/xmlui/handle/123456789/82

Abstract

Peanut butter was monitored for aflatoxin contamination at different stages during its large-scale production starting from raw shelled peanuts up to the final product. Twenty five samples, weighing 2 kg each, were taken from each of the following stages: roasting at 160?C, blanching/de-skinning and grinding. The sub-samples were ground, thoroughly mixed and further reduced by the quartering technique until a 1 kg sub-sample was obtained. This was then analyzed for aflatoxins using reverse phase HPLC incorporating pre-column trifluoroacetic acid derivatization. The results showed a total aflatoxin percentage reduction of 51% after roasting, 27% after blanching/de-skinning followed by a further 11% after grinding to make peanut butter. This meant that there was a cumulative total reduction of 89% of aflatoxin concentration during the production process of peanut butter. These results show that there is a significant reduction of aflatoxin levels at the roasting and blanching stages in the process of producing peanut butter.

Item Type: Article
Uncontrolled Keywords: Aflatoxin,Roasting,Blanching,Peanut Butter
Divisions: Universities > State Universities > National University of Science and Technology
Depositing User: Mr. Edmore Sibanda
Date Deposited: 01 Dec 2015 00:32
Last Modified: 01 Dec 2015 00:32
URI: http://researchdatabase.ac.zw/id/eprint/1218

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