Gram-negative |
Enterohemorrhagic E. coli O157:H7 |
ATCC 43895 |
Isolated from raw hamburger meat implicated in hemorrhagic colitis outbreak |
10, 20, 50 μg/mL |
Crystal violet biofilm assay |
Reduction of EHEC biofilm production as low as 10 μg/mL |
Lee et al., 2013
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EDL 933 |
Isolated from raw hamburger meat implicated in hemorrhagic colitis outbreak |
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Confocal laser microscopy (fluorescent) |
Reduction of EHEC biofilm production on glass surface at 50 μg/mL |
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commensal E. coli K-12 |
BW 25113 |
– |
50, 100 μg/mL |
Crystal violet biofilm assay |
No inhibition of formation of biofilm of all four commensal E. coli
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Lee et al., 2013
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MG1655 |
Derived from parent strain W1485 |
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TG1 |
– |
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DH5α |
– |
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Campylobacter coli |
873 |
Isolate from feces of patient with acute gastroenteritis |
6.25–200 μg/mL |
Crystal violet biofilm assay |
200 μg/mL resveratrol resulted in 63 −94 % biofilm inhibition in all 4 strains of bacteria. For established biofilm, 200 μg/mL resveratrol resulted in 80 % biofilm inhibition for both Campylobacter strains and A.butzleri AB36/11 and a reduction of 64% for the A. butzleri INSA 776. For all strains, even at subinhibitory resveratrol concentrations, inhibited biofilm formation as well as diminished established biofilm. |
Duarte et al., 2015
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Campylobacter jejuni |
225421 |
Isolated from fresh poultry meat |
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Arcobacter butzleri |
AB36/11 |
Isolated from poultry caecum |
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INSA 776 |
Isolated from feces of patient with diarrhea and abdominal pain |
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Campylobacter jejuni |
K49/4 |
Isolated from food |
12.5 – 1565 μg/mL |
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Subinhibitory concentration (12.5–200 μg/mL) resulted in 40 % inhibition of biofilm formation and 20–30% inhibition at other lower concentrations. At MIC, two times and five times MIC, even higher percentage biofilm inhibition was achieved |
Klancnik et al., 2017
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Vibrio cholerae O1 |
MCVO9 |
Clinical isolate from cholera outbreak |
10, 15, 20, 25, 30μg/mL |
Crystal violet biofilm assay |
Concentration dependent inhibition of % biofilm formation. 15 – 30 μg/mL resveratrol inhibits biofilm formation by 64–85%. At 10 μg/mL, inhibition was not significant. |
Augustine et al., 2014
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15,20 μg/mL |
Confocal laser microscopy |
Reduction of cells adhered to coverslip. Significant difference in thickness of biofilm in treated and control. At 15 μg/mL and 20 μg/mL, the measured thickness of biofilm was 18 μm and 15 μm respectively. In untreated cells, the thickness measured was 70 μm. |
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Vibrio cholerae |
ATCC 39315 |
Isolated from feces of cholera patient |
10 μg/mL |
Crystal violet biofilm assay |
No significant reduction in % biofilm formation |
Kim et al., 2015
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