Blue diaper syndrome is a rare, autosomal recessive metabolic disorder characterized in infants by bluish urine-stained diapers. It is caused by a defect in tryptophan absorption. ...
Principle
The test organism is inoculated into tryptone broth, a rich source of the amino acid tryptophan.
Indole positive bacteria such as Escherichia coli produce tryptophanase, ...