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Archives of Industrial Hygiene and Toxicology, Vol. 69 No. 4, 2018.

Original scientific paper

https://doi.org/10.2478/aiht-2018-69-3147

Effect of pretreatments on mycotoxin profiles and levels in dried figs

Jasenka Petrić ; Croatian Food Agency, Osijek, Croatia
Bojan Šarkanj orcid id orcid.org/0000-0002-1567-6455 ; University North, Center Koprivnica, Department of Food Technology, Koprivnica, Croatia
Ibrahim Mujić ; Collegium Fluminense Polytechnic of Rijeka, Rijeka, Croatia
Aida Mujić ; Clinical Hospital Centre Rijeka, Clinical Department of Transfusion Medicine, Rijeka, Croatia
Michael Sulyok ; Center for Analytical Chemistry, Department for Agrobiotechnology, IFA, Tulln, University of Natural Resources and Life Sciences, Vienna, Austria
Rudolf Krska ; Center for Analytical Chemistry, Department for Agrobiotechnology, IFA, Tulln, University of Natural Resources and Life Sciences, Vienna, Austria
Drago Šubarić ; Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology, Osijek, Croatia
Stela Jokić ; Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology, Osijek, Croatia

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Abstract

The aim of this explorative study was to investigate how effective drying preservation methods are in reducing mycotoxin content in figs. Dried autochthonous varieties of white and dark figs (Petrovača Bijela and Šaraguja, respectively) were analysed for mycotoxins using an LC-MS/MS “dilute and shoot” method capable of determining 295 fungal and bacterial secondary metabolites. Before drying in a cabinet dryer the figs were preserved with 0.5 % citric acid solution or 0.5 % ascorbic acid solution or 0.3 % L–cysteine solution or 0.2 % chestnut extract solution or 0.15 % Echinacea extract solution by immersion. We found nine metabolites: aflatoxin B1 (AFB1), ochratoxin A, ochratoxin alpha, kojic acid, emodin, altenuene, alternariol methyl ether, brevianamide F, and tryptophol. The most efficient preserver was L-cysteine (15 % reduction), while ascorbic acid favoured mycotoxin production (158 % increase). However, all pretreatment solutions reduced AFB1, which is a major fig contaminant.

Keywords

antimycotoxigenic effect; drying; LC-MS/MS; multi-mycotoxin analysis

Hrčak ID:

213653

URI

https://hrcak.srce.hr/213653

Publication date:

20.12.2018.

Article data in other languages: croatian

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