Recent advances in high efficiency separation methods of bacteria allow their rapid identification and quantitation in some cases. A specific capillary electrophoresis (CE) technique is used to identify and quantitate Lactobacillus acidophilus in both pill and syrup health products as well as Bifidobacterium infantis in a powdered formula supplement. Cell viability can be evaluated as well. In some cases, both the living and dead bacterial cells as well as the molecular excipients can be evaluated in a single run. © 2001 Federation of European Microbiological Societies.
Armstrong, D. W., Schneiderheinze, J. M., Kullman, J. P., & He, L. (2001). Rapid CE microbial assays for consumer products that contain active bacteria. FEMS Microbiology Letters, 194(1), 33–37. https://doi.org/10.1016/S0378-1097(00)00502-4