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Development of a computationally-designed polymeric adsorbent specific for mycotoxin patulin.

Elena V Piletska1, Demi Pink, Kal Karim

  • 1Leicester Biotechnology Group, Department of Chemistry, College of Science and Engineering, University of Leicester, University Road, Leicester, LE1 7RH, UK. ep219@le.ac.uk.

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This study developed a new, inexpensive polymer adsorbent for detecting the toxin patulin in apple juice. This method offers effective sample clean-up for accurate quantification, ensuring food safety.

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Area of Science:

  • Food Chemistry
  • Analytical Chemistry
  • Materials Science

Background:

  • Patulin is a mycotoxin found in moldy apples, posing a health risk, especially to vulnerable populations like children and babies.
  • Accurate monitoring of patulin levels in apple-based food products is essential for public health and food safety regulations.

Purpose of the Study:

  • To develop a computationally designed polymeric adsorbent for the efficient solid-phase extraction (SPE) of patulin from apple juice.
  • To enable accurate detection and quantification of patulin using conventional chromatography methods.

Main Methods:

  • Computational design of a bespoke polymeric adsorbent.
  • Application of the polymer for solid-phase extraction of patulin from undiluted apple juice.
  • Analysis of patulin levels using conventional chromatography.

Main Results:

  • The developed polymer demonstrated quantitative binding of patulin in undiluted apple juice.
  • The adsorbent is inexpensive and suitable for mass production.
  • The polymer's efficacy is attributed to a zwitterionic complex formed by acidic and basic functional monomers, enhancing patulin binding.

Conclusions:

  • A novel, cost-effective polymeric adsorbent was successfully developed for patulin extraction and quantification.
  • The study provides a scalable method for patulin detection in apple juice, contributing to food safety.
  • The described protocol serves as a template for developing similar polymeric adsorbents for other toxins and food matrices.