Microbiota of sausages obtained by spontaneous fermentation produced in the South of Brazil

The study of the ecology of fermented sausage is fundamental to understand the physical and chemical changes that happen during fermentation and maturation. The aim of the present study was to determine the microbiological characteristics of sausages produced by spontaneous fermentation. Fifty sampl...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Ciência e tecnologia de alimentos 2012-12, Vol.32 (4), p.653-660
Hauptverfasser: Santa, Osmar Roberto Dalla, Alvarez, David Chacón, Santa, Herta Stutz Dalla, Zanette, Cristina Maria, Freitas, Renato João Sossela de, Macedo, Renata Ernlund Freitas de, Terra, Nelcindo Nascimento
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The study of the ecology of fermented sausage is fundamental to understand the physical and chemical changes that happen during fermentation and maturation. The aim of the present study was to determine the microbiological characteristics of sausages produced by spontaneous fermentation. Fifty samples of sausages produced in the South of Brazil by different small manufacturers were analyzed for the following microbiota: aerobic mesophilic bacteria; Micrococcaceae; mold and yeast; lactic acid bacteria; total and fecal coliforms; coagulase-positive Staphylococcus, and Salmonella. In most samples (72%), the count of lactic bacteria was higher than 6 log10 cfu.g-1, and the samples with the highest counts were above 8 log10 cfu.g-1. The counts of Micrococcaceae in most samples were between 5 log10 and 7 log10 cfu.g-1. With respect to the presence of molds and yeasts, there was a significant variation among the samples with counts ranging from 2 log10 cfu.g-1 and 6 log10 cfu.g-1. From the data obtained, it was possible to conclude that 24% of the analyzed samples did not comply with the current law in Brazil since the levels of fecal coliforms or coagulase-positive Staphylococcus exceeded the maximum limit allowed. O estudo da ecologia de salames fermentados faz-se necessário para entender as mudanças físicas e químicas que ocorrem durante a fermentação e maturação. O objetivo deste trabalho foi determinar as características microbiológicas de salames produzidos por fermentação espontânea. Foram analisadas cinquenta amostras de salames de diferentes pequenas indústrias em relação à seguinte microbiota: bactérias aeróbias mesófilas; Micrococcaceae; bolores e leveduras; bactérias lácticas; coliformes totais e fecais; Staphylococcus coagulase positiva; e Salmonella. Na grande maioria das amostras (72%), a presença de bactérias lácticas foi superior a 10(6) ufc.g-1, sendo que as amostras com as maiores contagens tiveram quantidades acima de 10(8) ufc.g-1. A concentração de Micrococcaceae, na maioria das amostras, ficou entre 10(5) e 10(7) ufc.g-1. Em relação à concentração de bolores e leveduras, houve uma grande variação entre as amostras, com quantidades próximas a 10² ufc.g-1 até 10(6) ufc.g-1. Pelos dados obtidos, concluiu-se que, das amostras analisadas, 24% estão em desacordo com as normas vigentes no Brasil, pois apresentam quantidades superiores do máximo permitido para coliformes a 45 ºC ou Staphylococcus coagulase positiva.
ISSN:0101-2061
1678-457X
1678-457X
DOI:10.1590/S0101-20612012005000117