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Updated: May 12, 2026
09:21
Inhibition of Aspergillus flavus Growth and Aflatoxin Production in Transgenic Maize Expressing the α-amylase Inhibitor from Lablab purpureus L.
Published on: February 15, 2019
Adsorption of mycotoxins.
N Thimm1, B Schwaighofer, F Ottner
1Biomin G.T.I. GmbH, Industriestr. 21, A-3130, Herzogenburg.
Mycotoxin Research
|April 23, 2013
Summary
This study evaluated clays for binding mycotoxins in animal feed. While effective for aflatoxin B1, ochratoxin A, and zearalenone, clays did not bind deoxynivalenol, with no clear link to clay properties.
Area of Science:
- Animal Feed Safety
- Mycotoxicology
- Adsorbent Materials
Background:
- Mycotoxins contaminate animal feed, posing health risks.
- In vitro binding studies are crucial for assessing adsorbent efficacy.
- Developing effective mycotoxin adsorbents is vital for livestock health.
Purpose of the Study:
- To investigate the mycotoxin binding capacity of various clays.
- To determine the influence of buffer systems (pH 3 and 6.5) on adsorption.
- To correlate clay properties (CEC, ion concentrations) with mycotoxin binding.
Main Methods:
- In vitro binding assays with aflatoxin B1, zearalenone, ochratoxin A, and deoxynivalenol.
- Testing adsorption in two buffer systems (pH 3 and 6.5).
- Analysis of clay physicochemical properties: cation exchange capacity (CEC) and exchangeable cations (Ca2+, Na+, Mg2+, K+).
Main Results:
- Clays demonstrated high adsorption for aflatoxin B1 across both pH conditions.
- Adsorption rates for ochratoxin A and zearalenone varied significantly (0-100%).
- No tested clay adsorbent effectively bound deoxynivalenol.
Conclusions:
- Clays show potential as adsorbents for specific mycotoxins like aflatoxin B1.
- Deoxynivalenol binding remains a challenge for the tested clay materials.
- No direct correlation was found between clay CEC or exchangeable ion concentrations and mycotoxin adsorption capacity.
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