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ARS Home Office of Communications Images Photos Jul08





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Image Number D1173-1 Two antimicrobial edible film disks (the top two in the petri dish) repel *E. coli* O157:H7 growth in the agar surrounding them. Roberto Avena-Bustillos, a collaborating researcher from the University of California-Davis, uses a micrometer to measure the width of the clear agar zone around one of the two disks. The bottom two disks are controls.  Photo by Peggy Greb.  640 pixels wide: (d1173-1.jpg)   Please visit our Image Gallery


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