| abstract |
The invention relates to a detection medium comprising: a substrate having a specific metabolic activity of a group of gram-negative bacteria; a beta glucosidase or cellobiosidase substrate; and a beta glucosidase or cellobiosidase inducer, said inducer being a carbon hydrate consisting of a carbon hydrate bound in position β to glucose or a carbon hydrate with a β-glucoside sub-unit, preferably selected from cellobiose, cellulose, starch cellotriose, and trehalose. |