Fraser Brothplus Improves Choice for Listeria Culture
Aug 25 2006
The presence of antagonistic compounds in conventional formulations appears to interfere with subsequent ELISA procedures by compromising the isolation rates of target organisms. With Lab M's new Â½ Fraser BrothPLUS and Fraser BrothPLUS, the antibiotic supplement is blended into the base medium, but the ferric ammonium citrate (FAC) component is supplied separately as a supplement. By separating the FAC from the base medium, it can be omitted for improved ELISA performance, or included for compliance with the ISO 11290 standard.
Fraser Broth is traditionally used as a secondary enrichment medium for the isolation of all Listeria species. With the incorporation of Â½ strength supplement, it can also be used as a primary resuscitation or enrichment medium.
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