The control strain was inoculated into a non-selective broth overnight. The test culture medium was inoculated with 1 ul of the loop to make a parallel line (bacteria) on the surface of the test medium, or the inoculation culture was directly picked up by the inoculation needle to inoculate (mold). The plates were incubated according to the culture conditions specified in the standard.
After the cultivation, the medium was scored as follows:
0 means no growth;
1 means weak growth;
2 means good growth.
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