Microbiological quality in grated beetroots was studied. The vegetable was washed with cold water (8°C) or with chlorinated water (8°C and 252 mg active chlorine per liter water) and packaged in trays wrapped in high permeability film (PVC). Storage temperatures were 0, 4, and 20°C. Aerobic count colonies (ACC), fungi and yeasts, and lactose fermentative bacteria were determined. Representative colonies were identified. The results obtained showed that the treatment with chlorinated water caused significant decreases ( < 0.05) in the initial yeast counts and total aerobic counts. Treatment with cold chlorinated water significantly decreased the yeast counts and PCA counts after 3 days at 0 and 4°C. The change to 20°C caused significantly increased ( < 0.05) PCA counts in the grated beetroots (10 to 10 CFU/g). The microorganisms predominant among the isolates from fresh grated beetroots were gram negative bacteria (80%) and yeasts. None of the trays with grated beetroots contained molds. Some of the bacteria identified were Micrococcus luteus , Acinetobacter spp., Corynebacterium spp., and Enterobacteriaceae .
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