Analysis of mycotoxins in foods in Nairobi and its surroundings
Gitu, Leonard Mwangi
MetadataShow full item record
Animal feeds samples were collected from feeding troughs and analyzed for levels of aflatoxin B1, atoxic and carcinogenic mycotoxin. When aflatoxin B1 is consumed by dairy cattle, some of it is hydroxylated to form aflatoxin M1 is also toxic and carcinogenic, it was also determined in liquid milk. The analytical techniques used to carry out the determinations were Thin-layer chromatography (TLC), which utilizes the fluorescent properties of these compounds, and Differential Pulse Stripping Voltammetry, a technique that utilizes the electrochemical behaviour of aflatoxin B1. Some of the feeds, particularly brewers grain, barley husks and used poultry feeds, were found to generally contain high concentrations of aflatoxin B1 that were above the maximum tolerated levels in foods and feeds in various countries.