Research Article

Identifying Antioxidant and Antimicrobial Activities of the Phenolic Extracts and Mineral Contents of Virgin Olive Oils (Olea europaea L. cv. Edincik Su) from Different Regions in Turkey

Table 5

Antimicrobial activities of the phenolic extracts of virgin olive oils.

MicroorganismsInhibition zones (mm)
EdincikGomecIzmirAntibiotic (Gentamicin)

Enterococcus faecalis ATCC 19433 (Gram-positive) 7.67 ± 0.588.33 ± 0.5821.00 ± 1.00
Salmonella typhimurium ATCC 14028 (Gram-negative)11.67 ± 0.587.33 ± 0.588.33 ± 0.5819.00 ± 1.00
Enterobacter sakazakii ATCC 51329 (Gram-negative)7.33 ± 0.588.33 ± 0.588.00 ± 0.0023.67 ± 3.51
Proteus vulgaris ATCC 29905 (Gram-negative)7.00 ± 0.007.33 ± 0.589.33 ± 0.5817.00 ± 1.00
Pseudomonas aeruginosa ATCC 27853 (Gram-negative)7.33 ± 0.5811.33 ± 0.5810.00 ± 0.0024.00 ± 2.00
Bacillus cereus ATCC 11778 (Gram-positive)9.33 ± 0.5811.67 ± 0.588.67 ± 0.5819.00 ± 1.00
Staphylococcus aureus ATCC 6538 (Gram-positive)7.67 ± 0.587.33 ± 0.587.33 ± 0.5823.00 ± 2.65
Klebsiella pneumoniae ATCC 31488 (Gram-negative)7.67 ± 0.587.67 ± 0.587.67 ± 0.5822.67 ± 2.08
Escherichia coli ATCC 25292 (Gram-negative)0.00 ± 0.0011.33 ± 0.5810.33 ± 0.5819.67 ± 0.58
Shigella sonnei ATCC 25931 (Gram-negative)10.67 ± 0.588.67 ± 0.588.67 ± 0.5822.33 ± 0.58
Yersinia enterocolitica ATCC 23715 (Gram-negative)7.33 ± 0.587.67 ± 0.588.67 ± 0.5826.67 ± 0.58
Clostridium perfringens ATCC 13124 (Gram-positive)15.67 ± 0.5815.67 ± 0.5815.33 ± 0.5824.33 ± 0.58
Campylobacter jejuni ATCC 33291 (Gram-negative)11.33 ± 1.1511.33 ± 0.5811.33 ± 0.5826.67 ± 1.15
Acinetobacter baumannii ATCC 19606 (Gram-negative)8.67 ± 0.5810.33 ± 0.589.00 ± 0.0022.00 ± 0.00
Candida albicans ATCC 10231 (—)10.33 ± 0.5811.00 ± 1.008.33 ± 0.5824.33 ± 0.58
Saccharomyces cerevisiae ATCC 9763 (—)7.33 ± 0.587.00 ± 0.007.00 ± 0.000.00 ± 0.00

Differences between means indicated by the same letters are not statistically significant . Antibiotic was used as a positive control and was not evaluated statistically.