Carrie B Hughes

US Patent:

61300578, Oct 10, 2000

Filed:

Sep 28, 1999

Appl. No.:

9/407638

Inventors:

C. Michael Gosnell - Fallston MD
Carrie A. Hughes - Parkton MD
Paul E. Goldenbaum - Hampstead MD

Assignee:

Becton, Dickinson and Company - Franklin Lakes NJ

International Classification:

C12Q 118
C12Q 104
C12Q 102

US Classification:

435 32

Abstract:

Culture media for microorganisms containing blood or hemin, particularly Trypticase Soy Agar with blood, and chocolate agar, are combined with known chromogenic substrates to produce chromogenic media. Methods for preparing these chromogenic media include adding chromogenic substrates to the surface of previously prepared media, or incorporating the chromogenic substrate into the media as it is prepared. Methods for distinguishing microorganisms in a sample using these culture media are also described.