extremely significantP < 0.01
3 (A and B), the contents of L- and D-lactate produced by KF7 in MRS broth, about 0.58 ± 0.07 mM and 0.03 ± 0.00 mM, were both higher than LGG (0.91 ± 0.16 and 0.06 ± 0.01 mM) with extremely significant difference ( P < 0.01).