Open AccessAssessment of adulteration and mycoflora identification of honey samples marketed in the metropolitan region of Belo Horizonte, Brazil
Author(s) -
Raíssa de Assis Carvalho,
Ana Carolina Silva Ribeiro,
Clara Mariana Gonçalves Lima,
Wallace Pereira da Silva Mariz,
Luana Sousa Silva,
Andréia Marçal da Silva,
Douglas Roberto Guimarães,
Felipe Machado Trombete
Publication year - 2020
Publication title -
research, society and development
Language(s) - English
Resource type - Journals
ISSN - 2525-3409
DOI - 10.33448/rsd-v9i7.4246
Subject(s) - food science , penicillium , cladosporium , biology , titratable acid , sugar
Honey for human consumption must be processed under satisfactory conditions of Good Manufacturing Practices and not contain extraneous matters or microbiological contamination. However, several studies have shown that a high percentage of honey samples from different regions of Brazil are not adequate in terms of food safety. In this sense, this work aimed to evaluate the microbiological, microscopic, and physicochemical quality of uninspected honey samples marketed in the metropolitan region of Belo Horizonte, Brazil. Thirty honey samples (n= 30) were collected, and total coliforms, total fungi, extraneous matter and filth, moisture content, Aw, pH, total titratable acidity, Lugol test, and 5-hydroxymethylfurfural (5-HMF) were analyzed. Filamentous fungi were also isolated and identified at the gender level. Rodent hair and ants were found in the samples, indicating health risk for consumers. The data obtained demonstrated that 56.7% of the samples were adulterated. All positive samples in the Lugol test also presented starch granules in the microscopic evaluation, suggesting adulteration by the addition of sugar cane or corn starch syrup. No sample showed the presence of coliforms, and the total fungal count can be considered low. Cladosporium spp., Penicillium spp., and Aspergillus spp. were the principal genera of filamentous fungi isolated. High 5-HMF values were found, mainly in the adulterated samples. The data obtained will be reported to the competent authorities, since such products of unknown composition are being commercialized, offering risks to consumers' health.