Screening of Lactobacillus for efficient cholesterol-degrading
In this paper,25 Lactobacillus acidophilus were studied in the experiments.The quantity of the cholesterol-degrading in MRS-CHOL medium was used to analyze their cholesterol-reducing ability,then bile-tolerance and acid-tolerance.The results showed that all strains could remove cholesterol from media and removal rates of in which 6 strains were more than 40%.Meanwhile,these 6 strains had high removal effectiveness.As a result,these 6 strains were screened for their excellent cholesterol-reducing ability.Acid-tolerance and bile-tolerance were tested and compared with reducing cholesterol ability of these 6 strains respectively.The bile-tolerance and acid-tolerance were varied from strain to strain.Among 6 strains,1 strains Lactobacillus acidophilus demonstrated higher ability of removal cholesterol,acid-tolerance and bile-tolerance than other strains.