Avaliação da microbiota bacteriana do queijo de coalho artesanal produzido na região agreste do estado de Pernambuco / Evaluation of the bacterial microbiota of the artisanal "Coalho" of cheese produced in agreste region of the state of Pernambuco

RESUMO

O objetivo desta pesquisa foi avaliar a qualidade microbiológica e o perfil ácido-láctico do queijo de coalho artesanal. Todas as amostras de queijo apresentaram coliformes totais, termotolerantes e presença de Escherichia coli, porém com os valores dentro dos padrões estabelecidos pela legislação vigente no país. O perfil ácido-láctico estudado mostrou uma microbiota heterogênea, constituída por lactobacilos, lactococos, estreptococos e enterococos, confirmadas as espécies Enterococcus faecalis, Enterococcus faecium, Streptococcus thermophilus e Lactococcus lactis.

ABSTRACT

The aim of this study was to evaluate the microbiological quality and lactic-acid profile of artisanal coalho cheese. All cheese samples analyzed showed total coliforms, were thermotolerant, and had Escherichia coli, but all the values were within the standards established by current legislation in the country, and could be considered a food fit for human consumption. The cheese showed a heterogeneous microbiota, being constituted of all tested genus, such as lactobacilli, lactococcus, streptococcus and enterococcus, and confirmed the species Enterococcus faecalis, Enterococcus faecium, Streptococcus thermophilus and Lactococcus lactis.