Submit Manuscript | http://medcraveonline.com pathogenic bacteria. Therefore, rigorous hygienic precautions and adequate monitoring of the process environment and the finished product should be in place in order to ensure the quality and safety of the final product.The common microbiological parameters monitored for quality and safety of dairy products are applicable to probiotic products as well. Of these, Enterobacteriaceae is usually tested as a hygiene indicator intended to verify the hygiene programs applied at the production premises [2,3].Microbiological testing for the presence of Enterobacteriaceae is largely applied for dairy products, and some pathogenic species of this family, such as E. sakazakii, represent a significant risk related to powdered milk products. A FAO meeting report [4] states that the presence of Enterobacteriaceae in packaged powdered infant formulas is not due to the organisms surviving the process, but rather as a result of recontamination which is due to post-heating processes such as drying, conveying, tipping, mixing with additional ingredients and filling or packaging. Recontamination could also be related to the presence of microorganisms in the processing environment and to equipment that is in contact with the product [5].Dry dairy-based probiotic formulations are of the same nature as powdered milk products in terms of food matrices and production process, and therefore testing for Enterobacteriaceae as a hygienic indicator should be applied for these products as well, with certain exceptions, when a representative of Enterobacteriaceae (e.g. E. coli Nissle 1917) is an intended part of the probiotic formulation.
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