BIOMAT Database Logo BIOMAT Database Logo

Underestimation of total-coliform counts by the membrane filter verification procedure. 1982

J H Standridge, and J J Delfino

Coliforms, primarily Citrobacter freundii, gave negative verification results in the total-coliform membrane filtration test. The organisms produced gas from lactose in brilliant green bile broth but not in lauryl tryptose broth. The discrepancy was related to the peptone sources used in the media.

UI MeSH Term Description Entries
D002954 Citrobacter A genus of gram-negative, rod-shaped enterobacteria that can use citrate as the sole source of carbon.
D003470 Culture Media Any liquid or solid preparation made specifically for the growth, storage, or transport of microorganisms or other types of cells. The variety of media that exist allow for the culturing of specific microorganisms and cell types, such as differential media, selective media, test media, and defined media. Solid media consist of liquid media that have been solidified with an agent such as AGAR or GELATIN. Media, Culture
D005374 Filtration A process of separating particulate matter from a fluid, such as air or a liquid, by passing the fluid carrier through a medium that will not pass the particulates. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Filtrations
D014871 Water Microbiology The presence of bacteria, viruses, and fungi in water. This term is not restricted to pathogenic organisms. Microbiology, Water

Related Publications

J H Standridge, and J J Delfino
Comparison of verification procedures for the membrane filter total coliform technique.
March 1983, Applied and environmental microbiology,
J H Standridge, and J J Delfino
Comparison of verification procedures for the membrane filter total coliform technique.
June 1983, Applied and environmental microbiology,
J H Standridge, and J J Delfino
Impact of verification media and resuscitation on accuracy of the membrane filter total coliform enumeration technique.
May 1981, Applied and environmental microbiology,
J H Standridge, and J J Delfino
Underestimation of Fecal Coliform Counts in Shellfish-Growing Waters by the Spanish Official Method.
July 1995, Journal of food protection,
J H Standridge, and J J Delfino
Observations on the anaerobic membrane-filter technique for coliform counts in Nigerian surface waters.
June 1989, Zentralblatt fur Hygiene und Umweltmedizin = International journal of hygiene and environmental medicine,
J H Standridge, and J J Delfino
Membrane filter procedure for enumerating the component genera of the coliform group in seawater.
June 1975, Applied microbiology,
J H Standridge, and J J Delfino
Comparison of the hydrophobic-grid membrane filter procedure and standard methods for coliform analysis of water.
May 1987, Applied and environmental microbiology,
J H Standridge, and J J Delfino
Estimation of coliform bacteria ice cream by use of the membrane filter.
July 1959, Applied microbiology,
J H Standridge, and J J Delfino
Estimation of coliform density by the membrane filter and the fermentation tube methods.
November 1955, American journal of public health and the nation's health,
J H Standridge, and J J Delfino
Improved membrane filter method for fecal coliform analysis.
April 1975, Applied microbiology,
Copied contents to your clipboard!