enrichment medium

[in′rich·mənt ‚mē·dē·əm]

(microbiology)

A liquid cultural medium of a given composition which permits preferential emergence of certain organisms that initially may have made up a relatively minute proportion of a mixed inoculum.

References in periodicals archive

When using a detection system, a proper selective enrichment medium is needed to detect multiple pathogens in a food sample.

Selective enrichment medium offers simultaneous detection of bacteria

Following 4 days of incubation, the enrichment medium became noticeably more turbid as a result of cell growth in all tubes except those inoculated with sediments from sites 21 and 41 (no detectable TCE degradation at these sites).

Characterization of microbial communities in TCE-contaminated seep zone sediments

For all three packages (steak, butterfly cut, and sausage pieces), a combined weight of 25 g frozen meat shavings were macerated, incubated in enrichment medium, and immunomagnetically separated (IMS), according to the manufacturers' instructions (Dynal, Inc., Lake Success, NY).

Deer meat as the source for a sporadic case of Escherichia coli O157:H7 infection, Connecticut (1). (Dispatches)

Addition of serum to the enrichment medium used to culture V.

SERUM-INDUCED RESPONSE OF Vibrio vulnificus

It then also serves as a selective enrichment medium for the isolation of E.

Lab M's VCC integral to E.coli 0157 isolation

Fraser Broth is traditionally used as a secondary enrichment medium for the isolation of all Listeria species.

Improving Listeria isolation

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