Table 4. Regrowth of E. coli biofilms after 1,8-cineole treatment.

	Cell viability after treatment (Log10 cfu/cm2)a
	0 h post-treatment	6 h post-treatment	24 h post-treatment
Vehicle control	7.317 ± 0.042	7.316 ± 0.042	7.789 ± 0.109
Treated with 1,8-C	3.765 ± 0.273b	4.567 ± 0.064b	5.207 ± 0.039b

^a 3-d-old biofilms treated for 1 h with 0.25% (v/v) ethanol (vehicle control) or 1% (v/v) 1,8-cineole (1,8-C) and then incubated in fresh M9 medium. Data correspond to mean ± SD of three biological replicates.

^b Significant difference (p < 0.05) compared to the corresponding vehicle control by Student´s t-test.