When we have added a few drops of diozine green (janus green B) solution to yeast suspension this blue colour dye turns pink
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Add a few drops of diazine green [Janus green-B]solution to the yeast suspension before you pour liquid paraffin over it. The blue diazine green solution turns pink when oxygen is in short supply around it. Warm the apparatus to about 37 F in order to speed up the test
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