Reduction of aflatoxin M 1 ( invitro ) by Immobilized Saccharomyces cerevisiae on A lumin a silicate ceramic Beads

In this study the ability of Saccharomyces cerevisiae PTCC 5052 to adsorption of aflatoxin M1 was assessed. In order to improve operational efficiency, Alumina silicate ceramic was analyzed as a potential support for immobilization of yeast cells. In immobilization process, results indicated that the binding abilities of AFM1 by live cells of Saccharomyces cerevisiae were higher than non-live immobilized cells on alumina silicate ceramic within 48 hours (p<0.05). Then, the aflatoxin M1solution (0.2 ppb) was passed through a ceramic substrate containing immobilized saccharomyces cerevisiae (both of live and non-live immobilized cells) in 5, 10 and 20 minutes.The results showed that the residual aflatoxin M1in the solution after 20 minutes of circulation was minimal and the highest percentage of AFM1reduction was 70. Alumina silicate beads containing live immobilized yeast cells compared non- live yeasts, significantly reduced aflatoxin M1. The results of this study showed that the alumina silicate ceramic can be used as asuitable bed for immobilization of saccharomyces cerevisiae to remove aflatoxin M1.