Date of Award

2014

Document Type

Dissertation

Degree Name

Doctor of Philosophy (PhD)

First Advisor

Ibrahim, Salam A.

Abstract

The early detection of chemical contaminants in milk at the farm level is essential to prevent them entering into the food chain. The overall objective of this study was to determine the effect of selected rodenticides on the acidic and enzymatic coagulation properties of milk by using selected strains of lactic acid bacteria (LAB) and to evaluate the suitability of lactic acid bacteria as a biomarker for early detection of toxins in milk. Specific objectives of this study were (a) to determine the optimum growth temperature for lactic acid bacteria in MRS broth for early detection of rodenticides; (b) to determine the effect of selected rodenticides on the growth and activity of different strains of lactic acid bacteria in MRS broth; and (c) to determine the effect of selected rodenticides on the growth and activity of different strains of lactic acid bacteria in milk.

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