Table 1.

Molecular weight of different types of chitosan.

Type of Chitosan	Molecular Weight Range	Reference
Oligochitosan	4.7 kDa	[150]
Low molecular weight chitosan (LMW)	~10 kDa	[151]
	22 kDa	[152]
	120 kDa	[153]
	13 kDa	[154]
	4.8 kDa	[155]
	3.69 kDa	[156]
	50–90 kDa	[157]
	50–190 kDa	[158]
Medium molecular weight chitosan (MMW)	250 kDa	[153]
	190–310 kDa	[158]
	190–310 kDa	[157]
High molecular weight chitosan (HMW)	64.8–170 kDa	[151]
	340 kDa	[153]
	310–375 kDa	[157]