Abstract
This study was conducted to develop an effective probiotic dairy product to normalize the microbial flora in Koreaninfants. A total of 2,200 colonies were isolated from 25 Korean neonates, and 16S rRNA of 348 isolates was analyzed.Approximately 40% of the lactic-acid producing bacterial isolates were Enterococcus faecalis, and 34.2% of them werestrains similar to XR7 in the GenBank database. The fastest growing strain in MRS broth was registered as 91532 by theKACC. The selected strain was freeze-dried and utilized to ferment a milk-containing rice soup, tarakjuk. Microbiological,physico–chemical, and sensory characteristics of the fermented tarakjuk were compared with fermented milk and tarakjuk.E. faecalis KACC 91532 increased from 6.14±0.19 to 7.36±0.13 Log CFU/mL, and can be useful as a probiotic, asdescribed in the Standards for Functional Health Foods. Key words: probiotics, Enterococcus faecalis, fermented tarakjuk
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