Study of sorption activity of biosorbents in relation to Fumonisin B1

The aim of this study was to evaluate the effectiveness of four biosorbents in comparison with commercial adsorbents Vetohit and Zaslon in reducing the toxic effects of fumonisin B1. Quantitative determination of fumonisin B1 in supernatants from simulated digestion in different parts of the gastrointestinal tract was carried out by enzyme-linked immunosorbent assay using the RIDASCREEN® FUMONISIN kit (R-Biopharm). In vitro studies (pH 2.0, 8.0) showed that sample № 1, obtained on the basis of extracellular polysaccharides synthesized by strain 574 of the bacterium P. mucilaginosus and calcined bentonite, adsorbed more fumonisin B1 than other biosorbents and commercial preparations (9.43 p,g versus 8.60, 8.83, 8.90, 9.09 and 8.13 p,g, respectively). This suggests that the developed biosorbents are effective in reducing the toxic effects of fumonisin B1.