Characterization and association of bacterial communities and nonvolatile components in spontaneously fermented cow milk at different geographical distances
Chuantao Peng, Zhihong Sun, Yaru Sun, Teng Ma, Weicheng Li, Heping Zhang
Abstract
> 0.5 for the goodness-of-fit and predictive ability parameter, respectively) showed that samples from different geographical distances (provincial, county, and village) were all separated, which indicated that all the discriminations in nonvolatile components profiles were from different geographical distances. Investigating relationships between lactic acid bacteria and discriminatory nonvolatile components at the county level showed that 9 species were positively correlated with 16 discriminatory nonvolatile components, all species with low abundance rather than the predominant species L. delbrueckii ssp. bulgaricus and Strep. thermophilus, which indicates the importance of the selection of autochthonous nonpredominant bacteria.