The data on metagenomic profile of bacterial diversity changes in the different concentration of fermented romaine lettuce brine

This article describes the data on metagenomic profile of the bacterial community and diversity in the brine of fermented romaine lettuce in two experimental brine salinity (5 and 10%) obtained by Illumina MiSeq sequencing of V3–V4 region of 16S rRNA gene. A total of 98,660 reads (10%) and 95,968 (5%) consisted 38 and 47 consensus lineages (OTUs), respectively. Predominating phyla in 10% were 55.89% Proteobacteria and 41.97% Firmicutes, while predominating phyla in 5% brine were 63.47% Proteobacteria and 34.60% Firmicutes. The predominating lower taxa in 10% brine were Haererehalobacter salaria (54.19%) and Bacillaceae (33.2%), while in 5% brine were Enterobacteriaceae (46.67%) and Bacillus (21.53%). Leuconostoc (6.97%) and Lactococcus (3.97%) only appeared in 5% brine. The data presented here is the first metagenomic profile of romaine lettuce fermentation in different brine concentration and will serve as a baseline to understand the shifting of bacterial diversity associated with the change in brine concentration.