In the present study, variety of fruit vinegars were investigated in terms of their physicochemical, microbiological and bioactive properties. Total phenolic and flavonoid contents were in the range of 933-1162 mg GAE/L and 66.64-470.86 mg/L in terms of catechin equivalents, respectively. During the evaluation of antioxidant activity via DPPH and ABTS assay, samples showed the activity as in the range of 0.047-0.302 and 0.413-0.885 µg TE/mL, respectively. The counts of AAB, LAB and yeast-mold were found in the range of < 2-6.32, < 1-5.39 and < 1-3.97 log CFU/mL, respectively. Antimicrobial activity of vinegars was tested against nine bacteria by broth microdilution assay. Most of the samples were found inhibitive against test cultures at concentrations between 3.12 and 6.25% (Minimum Inhibitory Concentration, v/v), while apple vinegar was inhibitive at higher concentrations. These results indicated the high potential of fruit vinegars as antioxidant and antimicrobial agents that could be used as functional food ingredients.
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