bile salts are harmful to living cells because they damage the structure of the cell membrane.
the bile salts tolerance of strains is believed to be an essential property for screening new probiotic strains that can survive in the intestine.
the bile salts tolerance of the 7 strains was expressed as the survival rate of the isolates after incubating for 24h or 48 h in MRS broth with bile salt.
the 7 strains generally resisted bilt salt.