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. 1992 Dec;55(12):999-1002.
doi: 10.4315/0362-028X-55.12.999.

Comparison of Three M17 Media for the Enumeration of Streptococcus thermophilus in Fermented Dairy Products

R Jordano  1 , Cristina E Serrano  1 , María Torres  1 , J Salmeron  1
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Free article

Comparison of Three M17 Media for the Enumeration of Streptococcus thermophilus in Fermented Dairy Products

R Jordano et al. J Food Prot. 1992 Dec.
Free article

Abstract

Three M17 agar media for the enumeration of Streptococcus thermophilus in fermented dairy products, such as yogurt and other commercial fermented milk, were compared: CM785 Oxoid®, 15108 Merck®, and a M17 made in the laboratory. In all cases, the highest counts were taken on Oxoid® medium. The difference between the averages of the counts on the Oxoid® M17 and the laboratory-made M17 is significant, (P ≤ 0.05). However, the difference between the counts on the Oxoid® and Merck® media is not significant.

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