bile solubility test

bile sol·u·bil·i·ty test

a procedure that differentiates Streptococcus pneumoniae from other α-hemolytic streptococci by demonstrating its susceptibility to lysis in the presence of bile.

bile solubility test

a bacteriological test used in the differential diagnosis of pneumococcal and streptococcal infection. A broth culture of each organism is placed into two tubes. Ox bile is added to one and salt to the other. Pneumococci dissolve in ox bile, producing a clear solution. Because streptococci do not dissolve, the resulting solution is cloudy. The tube with salt is used for comparative purposes.

bile solubility test

A test used in microbiology to differentiate Streptococcus pneumoniae from other -hemolytic streptococci, based on its lysis in 2% sodium desoxycholate, a bile salt.
Mentioned in ?
References in periodicals archive ?
For example, when the procedure manual states that a bile solubility test is used to differentiate Streptococcus pneumoniae from viridans streptococci in sputum cultures, the results of that test should be recorded on the worksheet.
The direct bile solubility test is a simple way to identify pneumococci.