Effect of commercial starter cultures on survival of Yersinia enterocolitica and microbiological status of Sremska sausages
Baltić, Milan Ž.
Article (Published version)
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The aim of this study was to determine the survival of Yersinia enterocolitica (biotype 1, serotype O:8), and the microbiological status (lactic acid bacteria and Enterobacteriaceae), water activity and pH values of Sremska sausage (traditional dry-fermented sausage from Northern Serbia) during ripening (18 days). Four diﬀerent groups of Sremska sausage were manufactured: CI group - control without starter culture; CII group - control with starter culture; EI group - was inoculated with 108 CFU mL-1 of Y. enterocolitica ATCC 9610, without starter culture and EII group - was inoculated with 108 CFU mL-1 of Y. enterocolitica ATCC 9610 and with starter culture. During ripening, microbiological examination was conducted according to ISO methods, on days 0, 3, 7, 12 and 18. In the inoculated sausages, Y. enterocolitica did not grow after day 12 of the ripening period. The results revealed that the use of starter cultures increased the number of lactic acid bacteria, while completely reducin...g the Enterobacteriaceae count compared with the Sremska sausage without starter culture. Also, the sausages manufactured with starter culture had lower pH values compared to the sausages without starter culture. In conclusion, the use of starter cultures contributes to improving the microbial safety of Sremska sausage.
Keywords:Yersinia enterocolitica / Sremska sausage / food safety / microbiological status
Source:Meat technology, 2017, 58, 1, 39-46
- Institute of meat hygiene and technology, Belgrade
- Selected biological hazards for safety/quality of food of animal origin and control measures from farm to consumer (RS-31034)