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Boric Acid As A Selective Bacterio-Static Agent

Published online by Cambridge University Press:  15 May 2009

E. Maud Mcv. Blair
E. Maud Mcv. Blair
Affiliation:
Department of Public Health, Queen's University, Belfast
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A fluid medium is described, containing in every 100 c.c. of peptone water 0·25 g. lactose, 0·5 g. boric acid and 1 g. sodium sulphite (anhydrous). It shows a marked selective action.

The test gives satisfactory readings within 24 hours of incubating at 37°C. I am of the opinion that all strains capable of growth in this medium may be regarded as of definite sanitary significance; they are most likely of faecal origin, while those which fail to grow are of minor sanitary importance.

I hope that the boric sulphite test may prove a useful adjunct to the bacteriological examination of samples of water.

Information

Type
Research Article
Information
Journal of Hygiene , Volume 36 , Issue 3 , July 1936, pp. 446 - 448
Copyright
Copyright © Cambridge University Press 1936

References

REFERENCES

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