It’s not uncommon for food samples to inadvertently become contaminated with control strains used in the laboratory. This leads to false-positive results which can have severe financial and regulatory implications. UV-BioTAG, our line of reference strains containing green fluorescent protein (GFP) markers, makes is easy to distinguish natural contaminants from laboratory control strains. Optimized for highly visible fluorescence, UV-BioTAG strains provide better stability because the GFP marker is integr