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Efficient adsorption of the mycotoxins zearalenone and T-2 toxin on a modified yeast glucan.
Journal article

Efficient adsorption of the mycotoxins zearalenone and T-2 toxin on a modified yeast glucan.

  • Freimund S Swiss Federal Institute of Technology, Laboratory of Technical Chemistry, Zurich, Switzerland. freimund@tech.chem.ethz.ch
  • Sauter M
  • Rys P
  • 2003-04-29
Published in:
  • Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes. - 2003
Adsorption
Estrogens, Non-Steroidal
Glucans
Saccharomyces cerevisiae
T-2 Toxin
Zearalenone
beta-Glucans
English 1,3-Beta-D-glucan derived from baker's yeast was chemically modified in two steps yielding crosslinked carboxymethyl glucan as the sodium salt (2). After cation exchange with hexadecyltrimethylammonium chloride, a hydrophobic adsorbent (3) was obtained which showed an excellent binding of the estrogenic mycotoxin zearalenone with a maximum adsorption of up to 183 mg/g. Compound 3 additionally showed a relatively high adsorption capacity for the trichothecene T-2 toxin of at least 10 mg/g. Starting from 2, various derivatives were prepared by cation exchange using quaternary ammonium salts bearing substituents besides methyl from four to 18 carbon atoms. The adsorption of T-2 toxin on these derivatives were compared with compound 3 leading to the conclusion that 3 is the best adsorbent of all investigated tetraalkylammonium-modified derivatives of 2.
Language
  • English
Open access status
closed
Identifiers
Persistent URL
https://sonar.ch/global/documents/127961
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