Simultaneous Detoxification of Aflatoxin B1, Zearalenone and Deoxynivalenol by Modified Montmorillonites

Abstract

Raw Ca-based montmorillonite (MMT) was treated by H2SO4, calcination and organic compounds (hexadecyltrimethyl ammonium bromide (HTAB), cetylpyridinium chloride (CPC) and chitosan (CTS)), respectively. The modified montmorillonites were characterized by different methods and their adsorption performances for three mycotoxins (Aflatoxin B1 (AFB1), zearalenone (ZEA) and deoxynivalenol (DON)) were evaluated at pH = 2.8 and 8.0, respectively. The results indicate that surfactants (CPC and HTAB) intercalation is the most efficient modification, which obviously improves the adsorption performance of montmorillonite for mycotoxins, with adsorption efficiency of above 90% for AFB1 and ZEA whether under acid or alkaline conditions, due to the increase in basal spacing and the improvement of hydrophobicity. Moreover, the adsorption efficiencies of AFB1 and ZEA over CPC-modified montmorillonite (CPC-AMMT-3) coexisting with vitamin B6 or lysine are still at a high level (all above 94%). All modified montmorillonites, however, have low adsorption efficiency for DON, with somewhat spherical molecular geometry.

Compound mycotoxin detoxifier alleviating aflatoxin B1 toxic effects on broiler growth performance, organ damage and gut microbiota

“…Physical adsorbent such as montmorillonite has been reported to absorb AFB 1 to alleviate its toxic effects ( Mao et al, 2022 ). Biological methods such as microorganisms and enzymes have good applications in the degradation of mycotoxin.…”

Protective Effects of Carbonated Chitosan Montmorillonite on Vomitoxin-Induced Intestinal Inflammation

“…The adsorption principle hinges on their large specific surface area, a hydrophilic negatively charged surface, and the presence of numerous natural nanomicropores within their structure that facilitate homogenous substitution. This structure, which contains abundant exchangeable cations between layers, is well suited for adsorbing mycotoxins that possess polar groups, such as aflatoxins [ 22 ]. However, due to the weak polarity and poor electrophilicity of DON, silicoaluminate adsorbents struggle to bind to DON via charge adsorption [ 23 ].…”

The Influence of Humic Acids and Nitrophenols on Metabolic Compounds and Pesticide Behavior in Wheat under Biotic Stress

“…Mycotoxin content was increased in the inoculated plants, while the humic and nitrophenolic biostimulators reduced the levels of 3-AcDON, 15-AcDON, DON, and NIV in both inoculated and non-inoculated wheat. As indicated by Mao et al [65], selected organic compounds based on montmorillonite, hexadecyltrimethylammonium bromide, cetylpyridinium chloride, and chitosan can adsorb aflatoxin B1, trichotecens, and zearalenone. Maguey-Gonzalez et al [66] indicated that humic and fulvic acids can bind aflatoxins, thus reducing their toxicity.…”