Ocorrência e importância das aflatoxinas em alimentos: uma revisão / Ocurrence and importance of aflatoxins in foods: a review

O objetivo desse artigo foi apresentar uma revisão de literatura acerca das micotoxinas, sua história, e os consideráveis danos que podem trazer a saúde animal e humana. Uma busca em publicações de 2017 a 2021 foi realizada nas bases de dados Scientific Eletronic Library Online (Scielo) e Pubmed, cruzando os termos “mycotoxins”, “toxicity” e “aflatoxins”. Os critérios de exclusão foram artigos não relacionados ao tema, e artigos de revisão. Foram encontrados 13 artigos, dos quais 9 foram utilizados para escrever esse artigo de revisão

Electrophoretic profile of cell wall extracts from Candida albicans samples isolated from women with vulvovaginitis / Perfil eletroforético de extratos da parede celular de amostras de Candida albicans isoladas de mulheres com vulvovaginite

Candida albicans is a common commensal fungus in the human microbiota. It causes not only opportunistic infections, as in vulvovaginal candidiasis, but also allergic reactions in people sensitized to the fungus. The present study evaluated the ability of Coca liquid to extract glycoproteins considered fungal antigens from Candida albicans samples, with protein bands being visualized by SDS-PAGE electrophoresis. Five strains of Candida albicans were used, which were subjected to extraction with Coca liquid (0.28% NAHCO3, 0.49% NaCl), protein and carbohydrate were dosed in the supernatant of the extract and subsequently submitted to electrophoresis. We concluded that the Coca Liquid had great capacity for protein extraction, in addition to being a simple and inexpensive method

Susceptibility of airborne fungi to the mycocins produced by Wickerhamomyces anomalus: Susceptibilidade do fungi aéreo aos mycocins produzidos pela Wickerhamomyces anomalus

Atmospheric air is the most used and most successful dispersion medium for fungi. Airborne fungi can establish themselves and contaminate the air, reducing the quality of life of the organisms that circulate there. The broad spectrum of antimicrobial activity and great stability led to the use of Wickerhamomyces anomalus as a biocontrol agent, since it could be classified as a low-risk microorganism, rarely traced in human samples. In addition, the antimicrobial action of mycocins produced from this yeast in eukaryotic and prokaryotic microorganisms is already proven. The aim of the present study was to evaluate the inhibition of airborne fungi by mycocins. The passive sedimentation technique was used in Petri dishes exposed in an external environment. The exposed plates consisted of a control group, consisting only of Sabouraud Dextrose Agar medium, and another test, composed of medium and supernatant of mycocins from Wickerhamomyces anomalus. The growth of 6 genera of fungi was observed on the control plates: Cladosporium spp., Penicillium spp., Alternaria spp. Aspergillus spp., Chrysosporium spp. and Fusarium spp. While, on the test plates, there was no growth of microorganisms. Therefore, we concluded that the mycocins produced by Wickerhamomyces anomalus were able to inhibit the growth of airborne fungi