Table 2.

Minimum inhibitory concentration (MIC) values for the different honeys, their components and propolis against selected oral species.

	Manuka honey	Swiss midland honey	German lowland honey	Hydrogen peroxide	MGO in solution	Propolis in 10% ethanol*
S. gordonii ATCC 10558	1.25%	1.25%	1.25%	>2 mM	≤0.31%	1.25%
S. sanguinis ATCC 10556	1.25%	1.25%	1.25%	>2 mM	≤0.31%	1.25%
S. mutans ATCC 25175	20%	>50%	>50%	>2 mM	≤0.31%	1.25%
S. sobrinus ATCC 33478	10%	50%	50%	>2 mM	≤0.31%	1.25%
A. naeslundii ATCC 12104	5%	10%	1.25%	>2 mM	≤0.31%	≤0.63%
L. acidophilus ATCC 11975	1.25%	50%	2.5%	>2 mM	≤0.31%	≤0.63%

*10% ethanol did not exert any antimicrobial activity.