Comparison of Adsorption Capacity of Mycotoxin Detoxification Agents on Aflatoxin B1 and Deoxynivalenol

The objective of this study was to test on the selected common mycotoxin adsorbents to adsorb aflatoxin B1 (AFB1) and deoxynivalenol (DON). Inorganic adsorbents (HSCAS, zeolite and bamboo charcoal) and organic adsorbents (rumen protozoa and yeast powder) were given 0.1, 0.2 and 0.5% in test. Lactobacillus rhamnosus strain GG（LGG）were given 1010 CFU/mL. All groups were tested for their ability to adsorb 1 ppm AFB1 and 2 ppm DON in PBS, simulated gastric juice (SG) and simulated gastrointestinal digestion (SGI), respectively. Results indicated that inorganic adsorbents had better ability to adsorb AFB1 than organic adsorbents (P<0.05) in PBS, SG and SGI. In organic adsorbents, LGG had the best ability to adsorb AFB1. In the test of DON adsorption, bamboo charcoal had the best ability to adsorb DON in PBS. But, zeolite and organic adsorbents had the best ability to adsorb DON in SGI. However, all adsorbents had lower than 30% binding levels of DON in SG and SGI. In conclusion, inorganic adsorbents had better ability to adsorb AFB1 than organic adsorbents. All adsorbents had inferior binding capability of DON. It is necessary to find other adsorbent or detoxification method to remove DON from feeds.