Amplification of the 16S rDNA gene (1500 bp) was performed using specific primers for Lactobacillus and Lactococcus genus (F: 50- AGAGTTTGATCMTGGCTCAG-30 and R: 50 -TACCTTGTTAGGACTT- CACC-30). The PCR program cycle was set as follows: denaturation for 4 min at 95 C, 32cycles for 5 min (which consisted of 94 C for 1min,58Cfor1min,and72Cfor95s),andafinalextensionat 72 C for 5 min. Amplicons were electrophoresed on 1% agarose gel. The amplified fragment was then purified from the gel using a QIAquick PCR purification kit (QIAGEN, Hilden, Germany). Purified 16S rDNA fragments were sequenced by Macrogene Company (Korean sequencing company). Each sequence was blasted with