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Bacterial Tests

QuestionAnswer
starch hydrolysis pos result and neg result pos = colorless zone after iodine neg= red brown everywhere after iodine
sugar fermentation pos result and neg result pos= bubbles and phenol red turns yellow neg= no bubbles and phenol red stays red
indole production pos and neg result pos=red magenta ring neg=any other color ring
methyl red pos and neg result pos= red neg= yellow
gelatin hydrolysis pos= liqiid after ice bath neg= solid after ice bath
citrate utilization pos= growth and blue neg= green
catalase production pos= bubbles neg= no bubbles
coagulase pos= solid or loose clot neg= fluid
hydrogen sulfide production pos= black precipitate neg= no black precipitate
Created by: urmomshouse
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