Using the results from the sucrose test, Corynebacterium bovis could be eliminated because it’s test for sucrose was negative and unknown microbe #7 was positive for sucrose. Lastly, using the results from the glucose test as well as the methyl-red test, which helped identify which fermentation pathway was being used: the acid fermentation pathway or butanediol pathway, unknown microbe #7 was finally identified. After testing for methyl-red, it was concluded that unknown microbe #7 was Corynebacterium xerosis because the glucose test for Corynebacterium pseudodiphtheriticum was negative, meaning the microbe didn’t ferment glucose, and unknown microbe #7 did ferment
Using the results from the sucrose test, Corynebacterium bovis could be eliminated because it’s test for sucrose was negative and unknown microbe #7 was positive for sucrose. Lastly, using the results from the glucose test as well as the methyl-red test, which helped identify which fermentation pathway was being used: the acid fermentation pathway or butanediol pathway, unknown microbe #7 was finally identified. After testing for methyl-red, it was concluded that unknown microbe #7 was Corynebacterium xerosis because the glucose test for Corynebacterium pseudodiphtheriticum was negative, meaning the microbe didn’t ferment glucose, and unknown microbe #7 did ferment