Contamination by fungi and mycotoxins in wheat grains from Paraná and imported from Paraguay
DOI:
https://doi.org/10.33448/rsd-v9i9.8111Keywords:
Zearalenone; Virus diseases.; Phytosanitary quality; Import.Abstract
Wheat (Triticun aestivum L.) is one of the most produced cereals in the world. There are limitations such as excessive rainfall and high temperatures that facilitate the incidence of diseases, and in grain storage, an ideal microclimate is created, which can lead to the production of mycotoxins. Therefore, this work aimed to evaluate the phytosanitary quality of wheat grains in the West of Paraná and of imports from Paraguay. The wheat samples were collected from agricultural cooperatives, being 4 lots from Paraguay and 4 lots from Western Paraná. Mycotoxin analysis was performed through a feed analysis laboratory and fungal contamination analysis was performed at the PUCPR campus Toledo, by the filter paper method (Blotter test), by incubating the grains in gerbox boxes, with 50 seeds. After 7 days the fungus genera and the percentage of incidence of each were analyzed. The data were submitted to Kruskal - Wallis analysis to compare the means at the 5% significance level. Contaminant mycotoxins in the wheat lots of Western Paraná and Paraguay were not necessarily relevant for food safety according to the regulations and the Zearalenone index was higher for one of the lots from Paraguay. For the incidence of fungi a lot in western Paraná had higher contamination of Colletotrichum spp. and Fusarium spp., while for imports from Paraguay, it was for Rhizopus spp. and Bipolaris spp.
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Copyright (c) 2020 Caio Ericles Kolling; Márcia de Holanda Nozaki; Arlindo Fabrício Corrêia; Larissa Aparecida Gonçalves; Leandro Rampim
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