Fragmentation of Chitosan by Acids

Table 3

Degree of acetylation (DA) for original chitosan and two fragments as determined by elemental analysis (E. A.) or ¹H NMR.

Chitosan sample	DA (%)
	E. A.	NMR
Original	26	26
(F12, Table 2)	21	—
(F19, Table 2)	19	18