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Table 2 Bactericidal efficacy of fatty acids against logarithmic and stationary phases of Borrelia burgdorferii s.s. and Borrelia garinii

From: Anti-borreliae efficacy of selected organic oils and fatty acids

Tested fatty acids

Borrelia burgdorferi s.s.

Borrelia garinii

Logarithmic phase

MBC90 (mg/ml)

Stationary phase

MBC90 (mg/ml)

Logarithmic phase

MBC90 (mg/ml)

Stationary phase

MBC90 (mg/ml)

Polyunsaturated

 Linolenic acid

NSa

NSa

NSa

NSa

 Eicosapentaenoic acid

NSa

NSa

NSa

NSa

 Docosahexaenoic acid

NSa

NSa

NSa

NSa

 Linoleic acid

1.0

1.0

1.0

1.0

 13Z,16Z Docosadienoic acid

0.5

0.5

0.5

0. 5

Monounsaturated

 Undecenoic acid

NSa

NSa

NSa

NSa

 Palmitoleic acid

NSa

NSa

NSa

NSa

 Oleic acid

1.0

1.0

1.0

1.0

 Erucic acid

0.75

0.75

0.75

0.70

 Petroselinic acid

0.75

0.75

0.75

0.75

Saturated

 Butyric acid

1.0

1.0

1.0

1.0

 Undecanoic acid

NSa

NSa

NSa

NSa

 Caprylic acid

NSa

NSa

NSa

NSa

 Myristic acid

NSa

NSa

NSa

NSa

 Palmitic acid

NSa

NSa

NSa

NSa

 Stearic acid

NSa

NSa

NSa

NSa

 Arachidic Acid

1.0

1.0

1.0

1.0

 Dox + Dap+Cef

0.03

0.03

0.03

0.03

  1. Abbreviations: MBC90–minimal bactericidal concentration causing at least 90% of killing assessed using spectrofluorimetry after 72 h of treatment, Dox doxycycline, Dap daptomycin, Cef cefoperazon, a–maximal tested concentration (i.e., 1%), NS–not susceptible/not satisfying MBC90 requirement at the maximal tested concentration