Effect of Oregano and Marjoram Essential Oils on the Physical and Antimicrobial Properties of Chitosan Based Systems

Table 2

Particle size and zeta potential of the oregano and marjoram chitosan based film-forming solutions.

EE concentration (% wt.)	Particle size (µm)		Zeta potential (mV)
	CH-O	CH-M	CH-O	CH-M
0.5
1
2
3
4
5

Values are expressed as mean ± standard deviation. Different letters in the same column indicate significant differences ().