Usability of graphene oxide as a mycotoxin binder: In vitro study

PLoS One. 2020 Sep 23;15(9):e0239479. doi: 10.1371/journal.pone.0239479. eCollection 2020.

Abstract

Mycotoxin management in agriculture is an essential challenge for maintaining the health of both animals and humans. Choosing the right adsorbent is still a question for many breeders and an important criterion for feed manufacturers. New adsorbents are still being sought. Graphene oxide is a promising material in the field of nanotechnology, which excels in its adsorption properties. Presented in vitro study investigates graphene oxide for the binding of mycotoxins from crushed wheat. The results show that graphene oxide has an adsorption capacity for aflatoxin 0.045 mg/g, zearalenone 0.53 mg/g and deoxynivalenol 1.69 mg/g at 37° C. In vitro simulation of crushed wheat digestion showed rapid adsorption during the gastric phase. Of the minerals, Mg, Cu and Zn were the most adsorbed. The applied dose of graphene oxide of 10 mg/g caused only a slight inhibition of the digestive enzymes α-amylase and trypsin compared to pepsin and gastric lipase. In vitro results indicated the suitability of graphene oxide in the adsorption of the aflatoxin, zearalenone and deoxynivalenol.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adsorption
  • Aflatoxin B1 / isolation & purification
  • Aflatoxin B1 / toxicity
  • Animal Feed / analysis
  • Animal Feed / toxicity
  • Animals
  • Digestion
  • Food Contamination / analysis
  • Food Contamination / prevention & control
  • Gastrointestinal Absorption
  • Graphite / chemistry*
  • Humans
  • In Vitro Techniques
  • Mycotoxins / isolation & purification*
  • Mycotoxins / toxicity
  • Nanostructures / chemistry
  • Trichothecenes / isolation & purification
  • Trichothecenes / toxicity
  • Triticum / chemistry
  • Triticum / toxicity
  • Zearalenone / isolation & purification
  • Zearalenone / toxicity

Substances

  • Mycotoxins
  • Trichothecenes
  • graphene oxide
  • Zearalenone
  • Graphite
  • Aflatoxin B1
  • deoxynivalenol

Grants and funding

Pavel Horky TAČR TJ02000062 Advanced materials as a tool for eliminating mycotoxins in feed https://www.tacr.cz The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.