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. 2017 Apr 11;85(2):19. doi: 10.3390/scipharm85020019

Table 5.

The result of the fractional inhibitory concentration index (FICI) between cinnamon bark extract and honey against tested bacteria.

Strains Combination Extract + Honey MIC (µg/mL) FIC Outcome
Alone Combination FIC FICI
P. acnes Cinnamon extract 256 32 1/8 0.625 additive
Honey 50% 25% 1/2
S. epidermidis Cinnamon extract 1024 128 1/8 0.625 additive
Honey 50% 25% 1/2