. Investigations on the rapid methods for differentiating the microorganisms of coliform group
Vol. 6 No. 1 (1946), ORIGINAL ARTICLE
Vol. 6 No. 1 (1946)

. Investigations on the rapid methods for differentiating the microorganisms of coliform group

ORIGINAL ARTICLE
https://doi.org/10.53393/rial.1946.6.33150
Published 1946-01-20
A Buller Souto
Instituto Adolfo Lutz, São Paulo, SP
Maria Aparecida Moreno
Instituto Adolfo Lutz, São Paulo, SP
Maria E C Macedo
Instituto Adolfo Lutz, São Paulo, SP
Olga Pupo
Instituto Adolfo Lutz, São Paulo, SP
Zélia Gambier
Instituto Adolfo Lutz, São Paulo, SP
PDF (Português (Brasil))

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1.
Souto AB, Moreno MA, Macedo MEC, Pupo O, Gambier Z. . Investigations on the rapid methods for differentiating the microorganisms of coliform group. Rev Inst Adolfo Lutz [Internet]. 1946 Jan. 20 [cited 2024 May 18];6(1):21-7. Available from: https://periodicos.saude.sp.gov.br/RIAL/article/view/33150
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Abstract

The difference in the oxy-reduction potential between germs of the Escherichia and Aerogenes genera was tried out as a basis for rapid differentiation of these coli-form germs. The indicator used was methylene blue. The V. P. reaction was taken as a means of comparison. The methylene blue did not tally with the VP in 2,63% of the species of E. freundii, 4% of the E. coli, 18,3% of A. aerogenes, and 40,5% of the A. cloacae. The method of differentiation of the coliform germs by the discoloration of the methylene blue is not secure one.

https://doi.org/10.53393/rial.1946.6.33150
PDF (Português (Brasil))

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Copyright (c) 1946 Instituto Adolfo Lutz Journal

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