Synthesis and Antimicrobial Activity of N-(6-Carboxyl Cyclohex-3-ene Carbonyl) Chitosan with Different Degrees of Substitution

Table 3

Antibacterial activity of chitosan and N-(6-carboxyl cyclohex-3-ene carbonyl) chitosan derivatives against E. carotovora, R. solanacearum, R. fascians, and R. radiobacter by broth microdilution technique.

Chitosan product	MIC (mg/L)
	E. carotovora	R. solanacearum	R. fascians	R. radiobacter
Chitosan	1050	1880	1100	1160
1	755	1125	585	615
2	690	1045	480	510
3	640	945	330	460
4	590	810	255	410
5	510	735	240	385

MIC is a minimum inhibitory concentration. MIC is the lowest concentration of an antimicrobial that will inhibit the visible growth of a microorganism after overnight incubation.