Evaporated bile may inhibit or stimulate growth of colon bacilli depending on concentration of bile, reaction of the medium, and the strain of organism employed. With all samples of bile employed, a concentration of 2.0% was found to accelerate growth whereas 5.0% was inhibitory in acid media (about pH 6.0), and stimulating in alkaline media (pH 7.3-7.8).
Proceedings of the Iowa Academy of Science
©1927 Iowa Academy of Science, Inc.
Coles, Harold W. and Levine, Max
"Influence of Bile and Brilliant Green on Rate of Growth of Colon Bacilli,"
Proceedings of the Iowa Academy of Science, 34(1), 92-92.
Available at: https://scholarworks.uni.edu/pias/vol34/iss1/19