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Current and promising strategies to prevent and reduce aflatoxin contamination in grains and food matrices

In: World Mycotoxin Journal
Authors:
S.L. Gibellato Graduate Programme in Industrial Biotechnology, Universidade Positivo, Curitiba, Paraná, 81280-330, Brazil.

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L.F. Dalsóquio Bioprocesses and Biotechnology Engineering, Universidade Positivo, Curitiba, Paraná, 81280-330, Brazil.

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I.C.A. do Nascimento Bioprocesses and Biotechnology Engineering, Universidade Positivo, Curitiba, Paraná, 81280-330, Brazil.

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T.M. Alvarez Graduate Programme in Industrial Biotechnology, Universidade Positivo, Curitiba, Paraná, 81280-330, Brazil.
Bioprocesses and Biotechnology Engineering, Universidade Positivo, Curitiba, Paraná, 81280-330, Brazil.

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Mycotoxins are secondary metabolites produced by filamentous fungi that colonise various crops around the world and cause major damage to the agro-industrial sector on a global scale. Considering the estimative of population growth in the next decades, it is of fundamental importance the implementation of practices that help prevent the economics and social impacts of aflatoxin contamination. Even though various approaches have been developed – including physical, chemical and biological approaches – there is not yet one that strikes a balance in terms of safety, food quality and cost, especially when considering large scale application. In this review, we present a compilation of advantages and disadvantages of different strategies for prevention and reduction of aflatoxin contamination. Biological approaches represent the trend in innovations mainly due to their specificity and versatility, since it is possible to consider the utilisation of whole microorganisms, culture supernatants, purified enzymes or even genetic engineering. However, challenges related to improvement of the efficiency of such methods and ensuring safety of treated foods still need to be overcome.

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