A Nanoparticles based Microbiological Study on the Effect of Rosemary and Ginger Essential Oils against Klebsiella pneumoniae.

Table 3: Biofilm inhibition by the tested oils and their chitosan formulations on strong biofilm forming K. pneumoniae.

Tested oils and their Formulations	Concentrations of oils and their formulations
	3/4 MIC		1/2 MIC		1/4 MIC
	Biofilm Classification	% inhibition	Biofilm Classification	% inhibition	Biofilm Classification	% inhibition
Rosemary oil	None	60	None	73	None	77
Np-CS* rosemary	None	95	None	97	None	98
Ginger oil	None	60	None	73	None	87
Np-CS ginger	None	95	None	97	None	98

* Np-CS: Essential oil-loaded chitosan nanoparticles