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Growth promotion test in accordance to ISO 11133.

Inoculum on reference medium

- Bacillus cereus ATCC 11778 (WDCM 00001)

10 - 100

- Bacillus subtilis ATCC 6633 (WDCM 00003) 10 - 100

Recovery on test medium

- Bacillus cereus ATCC 11778 (WDCM 00001)

≥ 70 %

- Bacillus subtilis ATCC 6633 (WDCM 00003) no limit

Colony colour

- Bacillus cereus ATCC 11778 (WDCM 00001)

pink

- Bacillus subtilis ATCC 6633 (WDCM 00003) yellow

Precipitate

- Bacillus cereus ATCC 11778 (WDCM 00001)

+

- Bacillus subtilis ATCC 6633 (WDCM 00003) -

Growth

- Escherichia coli ATCC 25922 (WDCM 00013)

no growth

- Escherichia coli ATCC 8739 (WDCM 00012) no growth

Incubation: Bacillus 24-48 hrs. 30°c aerobic; other strains 48 hrs. 30°C