In vitro single and combined mycotoxins degradation by Ery4 laccase from Pleurotus eryngii and redox mediators

Abstract

Mycotoxin contamination of staple food commodities is a relevant health and economic issue worldwide.The development of green and effective reduction strategies to counteract the contamination by multiplemycotoxins has become an urgent need. The aim of this work was to evaluate the capability of a laccase(LC) from Pleurotus eryngii and a laccase-mediator systems (LMSs) to degrade aflatoxin B1 (AFB1),fumonisin B1 (FB1), ochratoxin A (OTA), deoxynivalenol (DON), Zearalenone (ZEN) and T-2 toxin in in vitroassays. In addition, the simultaneous mycotoxin degradation capability with selected LMSs was evaluatedwith combinations of AFB1 and ZEN, and FB1 and T-2 toxin. Redox mediators were found to drasticallyincreasethe degradation efficiencies of the enzyme. AFB1, FB1, OTA, ZEN and T-2 toxin degradation by thebest performing LMS were 73%, 74%, 27%, 100% and 40%, respectively. No degradation was registered forDON. Notably, AFB1 and ZEN were simultaneously degraded by 86% and 100%, while FB1 and T-2 by 25%and 100%, respectively. LMS proved to be a promising approach to enhance degradation properties of LCenzymes and for the potential development of a multi-mycotoxin reducing method.


Tutti gli autori

  • M.Loi; F. Fanelli; M.T. Cimmarusti; V. Mirabelli; M. Haidukowski; R. Caliandro; A.F. Logrieco; G. Mulè

Titolo volume/Rivista

Food control


Anno di pubblicazione

2018

ISSN

0956-7135

ISBN

Non Disponibile


Numero di citazioni Wos

Nessuna citazione

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Numero di citazioni Scopus

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Settori ERC

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Codici ASJC

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