THE DETERMINATION OF COLI‐AEROGENES ORGANISMS IN RAW MILK BY SURFACE SMEARS ON DRIED EOSIN METHYLENE BLUE AGAR PLATES
作者:
D. G. GRIFFITHS,
ELUNED POWYS‐DAVIES,
S. B. THOMAS,
期刊:
Journal of Applied Bacteriology
(WILEY Available online 1956)
卷期:
Volume 19,
issue 1
页码: 16-19
ISSN:0021-8847
年代: 1956
DOI:10.1111/j.1365-2672.1956.tb00037.x
出版商: Blackwell Publishing Ltd
数据来源: WILEY
摘要:
SUMMARY:The determination of the coli‐aerogenes content of raw milk by smearing 0·1 or 0·2 ml of suitable dilutions on dried Levine's eosin methylene blue agar plates and incubating at 37° or 30°, was found too unselective as a routine technique. Only about two‐thirds of the colonies showing the characteristic appearance of coli‐aerogenes bacteria were confirmed as such by the formation of acid and gas in MacConkey's broth. Appreciable proportions of the numerous rose coloured colonies and of the very small dark colonies with metallic sheen, which are not considered to be coliaerogenes bacteria, formed acid and gas in MacConke
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