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A-1 Broth

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SKU:

M874

Recommended for detecting faecal coliforms in water samples waste water, seawater and food by MPN Method.

Description

A-1 Broth is recommended for detecting faecal coliforms in water samples waste water, seawater and food by MPN Method. Andrews and Presnell devised A-1 Medium, which was capable of recovering Escherichia coli from estuarine waters in 24 hours instead of 72 hours by avoiding the pre-enrichment step as recommended by APHA. This greatly reduced the time required for the complete identification of E. coli by the elevated temperature and most probable number (MPN) methods, routinely used for water analysis. It substantially reduces the incidence of false positive cultures. The results obtained by using 3-hours pre-incubation step (using A-1 Medium) were statistically comparable with the two-step MPN technique for the enumeration of E. coli in chlorinated waste-water.

Product Information

More Information
Product Name	A-1 Broth
SKU	M874
Product Type	Regular
Physical Form	Powder
Origin	Animal
Packaging type	HDPE
References	1. Andrews and Presnell, 1972, Appl. Microbiol., 23:521.2.Eaton A. D., Clesceri L. S., and Greenberg A. W., (Eds.), 2005, Standard Methods for the Examination of Water andWastewater, 21st Ed., APHA, Washington, D.C.3.Andrews, Diggs and Wilson, 1975, Appl. Microbiol., 29:130.4.Standridge and Delfino, 1981, Appl. Environ. Microbiol., 42:918.5.Hunt and Springer, 1978, J. Assoc. Off. Anal. Chem., 61:13176.Miescier et al, 1978, J. Assoc. Off. Anal. Chem., 61:772.7.Downes F. P. and Ito K., (Eds.), 2001, Compendium of Methods for the Microbiological Examination of Foods, 4th Ed.,American Public Health Association, Washington, D.C.
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