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An Examination of The Modified Eijkman Method Applied To Pure Coliform Cultures Obtained From Waters in Singapore

Published online by Cambridge University Press:  15 May 2009

G. E. Boizot
G. E. Boizot
Affiliation:
Department of Chemistry, Straits Settlements, Singapore
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Since the original definition of the coli-aerogenes group of organisms by MacConkey (1905,1909), research has been continually directed in an endeavour to find a more rapid and definite distinction between its respective members.

In general, for the purposes of water analysis, the conform organisms can be divided into two main groups: faecal coli, of which Bact. colitype I can be considered the typical member, and the non-faecal organisms comprising the intermediate-aerogenes-cloacae (I.A.C.) organisms. All available evidence tends to show that Bact. colitype I is by far the most frequent organism in the human and animal intestine. Levine (1921) has summarized the figures of various workers and obtained a percentage ratio of 93·4:6·6 as the ratio of coli:aerogenes in faeces, while Bardsley (1938) has shown that in only a very few cases does the number of I.A.C. organisms exceed the faecal coli in faeces.

Type
Research Article
Information
Journal of Hygiene , Volume 41 , Issue 5-6 , December 1941 , pp. 566 - 569
Copyright
Copyright © Cambridge University Press 1941

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